As industrial landscapes evolve, the need for localised experts with access to a vast network of manufacturing partners has never been higher. By establishing a dedicated presence in these key regions, we are bringing our full-service manufacturing model directly to the heart of two industrial powerhouses.

Why Italy and France?

Both nations boast a rich manufacturing heritage, yet face a shared challenge: fragmented supply chains that can stifle speed and innovation.

“Italy and France have incredible industrial depth, yet fragmented supply chains often limit their speed. We’re launching our Multi-Stage Connected Manufacturing platform directly into these regions to build more resilient, transparent, and scalable manufacturing networks,” said Bjoern Klaas, CEO at Fractory.

We aren’t just operating digitally in Italy and France; we’ve appointed our first dedicated team members in both markets to provide expert account management to customers in each country.

Manufacturing in 2026

In a world of shifting trade rules and labour shortages, our goal is simple: Reduce administrative overhead, provide real-time lead visibility, and maintain a gold standard of quality.

“In 2026, industrial agility is no longer a luxury – it’s a requirement with shifting trade rules, labour shortages and geopolitical fragmentation,” added Klaas. “We’re providing a manufacturing execution layer that sits between demand and a distributed industrial supply base that is superior to just parts marketplaces.”

Experience Multi-Stage Connected Manufacturing with Fractory. Upload your CAD files for instant pricing and streamline your production from prototype to final delivery.

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For procurement and legal teams, the shift toward cloud-native platforms triggers a specific anxiety. The idea of clicking “Upload” and sending sensitive files into the ether feels counterintuitive to securing intellectual property. Yet, the reality of the modern supply chain is that traditional methods, like emailing engineering drawings to multiple vendors, are often far less secure than a purpose-built digital platform.

Navigating data security in a digital ecosystem requires separating the myths from the technical reality. It is about ensuring trade secrets remain secret while accessing the agility of the cloud. By understanding the mechanisms of IP protection in digital manufacturing, companies can mitigate potential risks and prevent intellectual property theft.

The Real Risk: Phishing, Email vs The Cloud

A robust strategy for IP protection begins with an honest assessment of how manufacturing firms currently handle product data.

In many traditional workflows, a drawing is exported and emailed to five potential manufacturers to get quotes.

• The Vulnerability: Email is rarely encrypted at rest. Once that file leaves the outbox, it sits on five different servers. It can be forwarded, downloaded to personal drives, or intercepted by malicious actors via phishing attacks.

• The Exposure: There is no centralised access control. You cannot “un-send” that intellectual property once it has left the building.

Compare this to a robust cloud platform for manufacturing processes. When a file is uploaded to a platform like Fractory, the data is encrypted. It is not “sent” to suppliers indiscriminately; it is “hosted” securely.

The shift to the cloud is not about losing control; it is about regaining it. By centralising valuable assets such as CAD designs and proprietary software logic in one secure environment, procurement teams eliminate the “file sprawl” that leads to most security incidents. Knowing exactly who has access to sensitive files is critical for maintaining control in a distributed supply chain.

Technical Defences: Architecture and Anonymisation

When vetting a manufacturing partner, the technical layer of IP security is the first line of defence. A generic promise of “safety” is insufficient; the architecture must withstand specific threats.

Zero-Disclosure Quoting (The “Internal” Quote): The safest file is the one that is never shared. Uniquely, automatically priced processes, such as laser cutting (including bending) and CNC machining, Fractory utilises zero-disclosure quoting. In cloud manufacturing, restricting data movement is key; this mechanism ensures that only the minimum necessary data is used for pricing.

• How It Works: The pricing algorithm calculates the cost internally on secure servers.

• The Benefit: Sensitive files are not shared with any manufacturing partners during the quoting phase. They are only released to the specific partner who wins the job after the order is confirmed. This keeps confidential information strictly internal until the moment of production.

Blind Manufacturing (For Complex Parts): For complex projects requiring manual review, data must be shared with the best-suited suppliers. However, this does not mean sharing your identity. Here, the defence shifts to anonymisation.

• Stripping Identity: Before a file is shown to a partner, the system strips metadata and removes title blocks containing the client’s name and project codes.

• The Result: The manufacturer sees exactly what to make (the full geometric data required for production), but not who it is for. This prevents competitors from inferring R&D strategy and protects the competitive edge.

Infrastructure Security

Data sovereignty matters. Your data is not hosted on a generic office server; it sits on enterprise-grade infrastructure (AWS). This environment utilises ISO 27001 certified standards, ensuring physical and digital security that matches the banking and defence sectors. This rigorous approach effectively blocks malicious code and external attacks.

Limiting the “Human Factor”: Access Control

Most intellectual property theft is not the result of a sophisticated hack. It is the result of human error or insider threats.

In an “Open Marketplace” model (where a job is posted for anyone to bid), CAD files might be visible to hundreds of service providers. This creates a massive leak of sensitive information.

The Managed Cloud Provider Advantage

In a managed model, access control is granular and automated. Managing rights and permissions is essential to mitigate risks such as insider attacks and data breaches.

• Algorithmic Matching: The platform identifies the best partner based on capabilities, not by broadcasting the file to the world.
• Need-to-Know Basis: Only the specific contract manufacturer awarded the job gets access to the full technical data and decryption key for the production files.
• Traceability: The platform logs exactly who accessed the file and when. This audit trail is essential for incident response if quality issues or leaks are suspected.

This adherence to the principle of data minimisation ensures that sensitive data is exposed only to the absolute minimum number of people required to manufacture the part, statistically reducing the risk of IP theft.

The Legal Framework: NDAs and Liability

Before sharing product files with a contract manufacturer, always have a Non-Disclosure Agreement (NDA) in place. Technical barriers are the first line of defence, and the legal framework is the second.

Protecting intellectual property requires a clear chain of liability. Working with a loose network of shops often relies on implied trust. If a small workshop in a different jurisdiction misuses patent protection data, pursuing them legally is expensive and difficult.

Centralised Liability

The partner’s business model dictates the risk profile.

• The Broker: Connects the buyer and steps away, leaving the buyer to enforce NDAs with the supplier.

• The Contract Manufacturer: The platform is the supplier. The buyer signs one NDA with the platform. The platform is legally liable for protecting IP across its supply chain.

This structure extends the legal framework to every node in the network. The platform maintains a rigorous compliance program where any breach of confidentiality is met with proportional corrective action. While minor procedural lapses are addressed through immediate remediation, significant violations lead to disqualification from the network and legal action. This ensures a high-trust environment where IP security is a prerequisite for participation.

Operational Resilience: Monitoring and Response

Even with the best preventive measures, the dynamic nature of digital manufacturing means that new threats can emerge. A thorough approach to supplier evaluation goes beyond price and capabilities, it must include a deep dive into incident response. A robust partner should demonstrate:

• Proactive Monitoring: The ability to detect phishing attacks or unauthorised access attempts in real-time. Before an incident occurs, firms should ensure their domain is hardened against impersonation. Utilising an SPF record generator allows manufacturers to verify their email identity, making it much harder for malicious actors to successfully land a phishing email in a partner’s inbox.

• Incident Protocols: Clear rules and policies that automate monitoring and response actions. The majority of IP theft cases in recent years involve slow response times. Your partner must have the ability to “lock down” data instantly if a threat is detected.

By fostering a culture of awareness and continuous improvement, managed platforms adapt to change faster than individual suppliers, enhancing IP protection over time.

Conclusion

The fear of data breaches in the manufacturing industry is valid, but it should not paralyse procurement strategy.

In many ways, the cloud is safer than the filing cabinet. By utilising software applications that prioritise high-level encryption, strict access control, and a robust legal framework, procurement teams can achieve a level of IP security that traditional supply chains simply cannot match.

The key is to view the manufacturing partner not just as a source of metal parts, but as a guardian of valuable assets. When a partner treats securing intellectual property as a core competency, they secure not just the data, but the future competitive edge.

Fractory is a leading cloud-manufacturing platform that provides instant access to a global network of metal fabrication services. By integrating a vetted network of manufacturing partners into a single platform, Fractory provides instant quotes, automated design-for-manufacture feedback, and end-to-end project management. This eliminates the administrative overhead of traditional sourcing, allowing engineers to focus on innovation rather than logistics.

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Today’s stamping processes are nothing short of an engineering marvel, requiring deep knowledge of physics, precision engineering, press mechanics, and material science. They create complex components with very tight tolerances while avoiding defects such as cracks and wrinkles. In this article, we’ll provide an overview of sheet metal stamping and the associated operations.

What Is Sheet Metal Stamping?

Stamping is a sheet metal fabrication process that creates parts out of flat sheet metal by stamping or pressing it in a die. The die is the steel block that contains the reverse imprint of the desired shape. It has two halves (bottom and top), which are assembled in a press. The press is powered by a flywheel, which typically receives its power from an electric motor.

Stamping is usually done on a cold metal sheet and is a sort of umbrella term involving a lot of different operations such as blanking, coining, drawing, flanging, bending and so on. It is a fast and cost-effective solution for high-volume manufacturing needs. The finished products are generally known as metal stampings.

Sheet metal stamping is a reliable method to create sheet metal parts for varied applications and complexities. It may be single- or multi-stage. In single-stage stamping, the die carries out one primary operation per stroke. Although it is often used for simple, large parts, but it is also capable of producing extremely complex geometries with high precision.

Multi-stage stamping, on the other hand, can create highly complex parts at a high rate by combining multiple operations in a single stroke. Sheet metal components like automotive brackets, electric motor mounts, and engine heat shields are typically produced through multi-stage stamping.

They start as a metal coil and end up as finished metal parts after going through operations such as punching, bending, drawing and cutting at different stations during the same stroke. The die used for the process is known as a progressive stamping die, as it progressively punches and forms the parts until a finished part falls off at the end.

The part stays connected to the sheet metal coil through points known as carrier points. They help the parts to progress correctly while maintaining precise positioning.

A second type of die involves loose parts being cut and transferred between stations. When a part is detached from the strip and continually formed, the process is known as transfer die stamping.

Types of Stamping Presses

The stamping presses provide the power for the stamping process. The amount of power required depends on many factors such as the type of operation, part complexity, process speed, tooling condition and material properties such as strength, thickness, and grade.

Naturally, higher thickness and greater part complexity require more force. A 250-tonne press conveys that it can squeeze the metal sheet with a compressive force of 250 tonnes (about 500,000 pounds or 2224 kN). The three main types of presses used in the industry today are:

• Mechanical press

• Hydraulic press

• Servo press

Mechanical Press

The mechanical press is the most primitive type of press that can last for many decades. It features a simple system consisting of an electric motor-driven flywheel that stores and transfers the energy to the press for the stamping operation.

Key Advantages

• Simple operation: The absence of a complex mechanism means fewer breakdowns and less maintenance.

• Highly durable: Their robust nature allows them to operate reliably for decades with only a minimal drop in efficiency.

• Suitable for high-speed, high-volume production: The mechanical press can be integrated with mass production setups and automatic feed systems to achieve a high rate of production.

• Highly consistent: It delivers consistent part quality in all kinds of production setups while minimising scrap.

Hydraulic Press

The hydraulic press uses Pascal’s law to multiply force and apply pressure on the sheet metal for the stamping process. Pascal’s law states that the pressure applied to an incompressible confined fluid is transmitted equally in all directions by the fluid. This hydraulic pressure is used to operate the press by manipulating the pump pressure and valves.

Key Advantages

• Uniform pressure and force distribution: The press can deliver peak tonnage anywhere in the stroke, unlike mechanical presses.

• High tonnage capacity: The hydraulic press can deliver extremely high force, making it ideal for demanding applications. Specialised hydraulic presses can reach up to 80,000 tonnes, while mechanical and servo presses can reach up to 6000 tonnes and 2500 tonnes, respectively.

Servo Press

Servo Press

Servo presses represent the latest advances in metal stamping press technology. Mechanical presses can only operate at a fixed stroke profile. However, with servo presses, we can digitally control the ram speed, press force, press motions, and position. Several presses can be grouped to run in tandem or robot-lined configurations to deliver specific requirements.

This control is crucial to create highly specific shapes, for example, those requiring a deep drawing operation. By reducing the speed during the deep drawing part of the stroke, the possibility of sheet tear is minimised, a likely defect in this operation.

Servo presses use motors to directly power rams instead of a flywheel in the middle. They also feature better accuracy, repeatability, and power than mechanical presses.

Key Advantages

• Unmatched control: Servo presses enable us to closely control many manufacturing process parameters. For instance, they can consistently track a single position within 10 microns of repeatability during continuous production.

• Energy efficiency: Servo presses consume energy during the working stroke only, unlike other presses that run loaded throughout the flywheel rotation. This reduces the overall energy consumption and makes servo presses a more sustainable alternative.

• Higher part quality: Variable speed (fast entry, slow forming and slow exit) reduces the likelihood of defects such as springback, wrinkles, internal stresses, and tears. This gives manufacturers an edge in part quality with superior edges, improved drawability and consistent good parts.

• Other noteworthy benefits include a quieter operation, reduced tool wear, versatility, and greater productivity.

Metal Stamping Operations

Metal stamping operations are the different ways in which a die interacts with the sheet metal to alter its shape and thickness. Some common operations used in stamping are cutting, bending, hemming, drawing, stretching and coining. In this section, we will describe some of these operations and discuss their use in the industry.

An appropriate sequence of operations must be established to ensure that the final part shape can be reached in the minimum number of stages while consuming the least amount of energy.

Cutting

The cutting operation refers to the separation of metal from the coil or from the raw material piece to achieve the part shape. This is typically one of the first steps, but there are methods (progressive die stamping) where the metal is cut from the metal coil in the final step.

Cutting also encompasses other similar operations such as punching, blanking and trimming. Punching (aka piercing) refers to the cutting of holes in the sheet metal. It is used extensively in stamped parts to create openings where needed. For instance, when designing the heat shield of an engine, a hole is cut to pass the ignition wire to the engine cylinder head.

Blanking refers to the creation of the part outline from sheet metal that will be formed sequentially to achieve the final part shape. Imagine a fully opened cardboard box that can then be folded to achieve the shape of the cardboard box. This original piece is known as the blank, and the stamping operation that creates this piece is known as blanking.

Trimming is typically a later operation that removes excess material from a formed part. It is an essential operation in the creation of a high-quality part as it smoothens the perimeter by improving the edge quality and also brings a part within dimensional tolerance as per design. Trimming is generally performed after operations such as deep drawing, stretch forming, bending and flanging.

Bending

Sheet metal bending is an integral operation in stamping that allows us to create 3D shapes out of a 2D metal sheet. In this process, the material is bent to a desired angle by holding it between the two die ends. A portion is clamped while the other is bent as needed to achieve the part shape.

The bending operation may create either a rounded or a straight corner in the part. It can also create features such as flanges and channels. A common application of the bending operation is to create brackets, supports and other structural elements.

Stretching

The stretching operation stretches or elongates a part by squeezing it in a die. The metal sheet conforms to the shape of the die by flowing outwards. Imagine squeezing a ball of clay between your palms. The squeezing reduces the thickness while increasing the length and width of the clay. Stretching is often preferred to make smooth car body parts, such as Class-A surfaces.

Drawing

In the drawing operation, a metal sheet is pushed by a punch into a die cavity to create hollow shapes such as cups and shells. If the drawing depth is less than the diameter, it is known as shallow drawing, otherwise, it is known as deep drawing.

The drawing process is commonly used to create hollow features in stamped parts. Some amount of stretching does occur during the drawing process. However, unlike stretching, where the material flows outward, it flows inwards from the flange area in drawing. A popular example of a drawn product is a soda can.

Embossing and Debossing

Embossing/debossing refers to the raising/lowering of a design from the substrate metal sheet as needed. These raised or recessed patterns could be for functional or aesthetic reasons. Functional applications of embossing/debossing include the addition of text denoting batch numbers and manufacturing dates into the part. Aesthetic reasons are to give the part a premium look and feel through the addition of an extra dimension or surface texture.

Flanging

Flanging is a sheet metal operation in which the edges of a metal sheet or a hole are turned up at 90 degrees to create a flange. The bending may be carried out along a straight or curved axis. Flanging serves three primary purposes: aesthetic appeal, structural reinforcement, and assembly facilitation. The raised lip (flange) adds stiffness to the part while also providing a surface for bolting/welding to aid in assembly.

The flanging operation needs a flanging die. It consists of a punch and a lower die that shapes the metal. The lower die controls the stretching and distribution of the metal, achieving a precise bending radius and flange angle.

The metal stamping process consists of two types of flanging operations: stretch flanging and shrink flanging. As the material stretches in stretch flanging, it results in thinning of the part, whereas shrink flanging leads to thickening. Flanging can be integrated into progressive die stamping setups as a standalone process or as a prelude to the hemming operation.

Hemming

The hemming operation involves the bending of a sheet metal edge over itself to create a smooth edge. Unlike flanging that creates a 90-degree bend, the hemming operation produces a 180-degree bend. Stamping hems are of two main types: closed type, where the hem sits flush on the surfaces, and open hem, where there is an air gap between the folded edge and the substrate.

Hemming is typically used in the industry for enhancing aesthetics (hide rough edges/create smooth edges), improving safety (thin edges are a safety hazard), increasing strength (greater resistance to tearing, warping, bending, cracking, etc.), and for fastener-free joining.

Advantages of Stamping Process

The modern stamping process is an absolute blessing to the manufacturing industry. It provides a cost-effective method to create consistent, high-quality parts for large production runs. Stamping also has very low wastage, reduced labour requirements and a highly automatable workflow. Here’s a brief description of the main advantages stamping offers.

Cost-Effectiveness: Stamping offers one of the lowest per-part costs due to its low wastage rate, high potential for automation and reduced labour needs. Consistent production of quality products also enables a lower rejection rate. Further processing, such as heat treating, is also more economical in stamping compared to traditional manufacturing techniques.

High Speed Production: The ability to churn out parts rapidly and reliably through automation and well-designed operations makes stamping an ideal candidate for high-speed production needs. Stamping can meet mass production timelines or reduce time-to-market durations considerably.

Low Material Wastage: Stamping processes are capable of high material utilisation. For common materials, a material utilisation rate of 75-80% can be achieved with ease. Highly optimised processes can achieve a 95% material efficiency.

The percentage refers to the weight of the finished products compared to the weight of the raw material. The lost material is scrap (often called offal). This metric is also known as the yield of a manufacturing process. Stamping has a very high yield compared to many other processes.

Versatility: The stamping process creates products for a variety of industries such as aerospace, automotive, construction, medical devices and electronics. This is due to its capability of working a range of different materials to create highly complex yet precise components.

Stamping can handle most materials such as plastic, brass, copper, aluminium, alloy, stainless steel, mild steel, spring steel, with thicknesses ranging from light foils to thick sheets. While stamping is usually profitable at higher volumes, it can be modified to run smaller production batches as well.

Stamping integrates well with other processes and systems, such as CNC and robotics, increasing output and efficiency.

Disadvantages of Stamping Process

It is important to understand the limitations of the stamping process to achieve its full potential. Some of these are mentioned below.

High Initial Investment: Stamping requires considerable initial investment to get the parts rolling. Die design, modification and maintenance are expensive even when handled by experienced professionals.

The manufacturer needs to account for all of the capital and operational expenditure starting from the client query until the moment an acceptable part is ready to be stamped. However, modern tools such as stamping simulation software can relieve some of the operational expenses associated with tool design, modification and testing.

Long Lead Times: When a client approaches a stamping expert, the first priority is often Design for Manufacturing (DFM). Generally, some design changes are inevitable to make the design more process-friendly, such as the elimination of sharp corners and other unnecessary features. Even after the part is finalised, it may take months or, in extreme cases, years to get the tooling right, especially if the design is really complex.

When process design is performed using the traditional method without simulation, stamping dies go through many tryout loops where they are repeatedly tested after small modifications to get the final part manufactured correctly. Each tryout loop can last anywhere from a few weeks to a few months, depending on part complexity. Thus, stamped parts can have considerably higher lead times.

Safety Concerns: While workplace safety has come a long way, stamping is still prone to flying debris and burrs and requires a strict safety culture. Proper implementation of safety regulations is non-negotiable. Laser curtain-based auto stop mechanisms are also in use to prevent pinching or crushing injuries.

Machinery Prone to Wear: As with all machinery, stamping presses and dies are prone to wear and require timely maintenance for smooth and satisfactory operations. Dies also lose accuracy with use and may need to be decommissioned when worn beyond permissible limits. This can, however, be avoided by using metal inserts where applicable. These metal inserts wear out instead of the die and can be swapped for new ones. Through this method, the dies end up lasting several decades.

High Skill Requirement: Even seemingly simple parts, such as flat battery separator plates, are prone to defects like springback, thinning, wrinkles, and cracks. Modern stamping processes thus need a highly skilled team to design, implement, and monitor the process on the shop floor. The integration of automation can further increase the need for skilled labour for smooth setup and operations.

Fractory offers professional manufacturing services, including metal stamping, laser cutting and CNC machining for various steels and other metals. From prototypes to full production runs, we support industries such as automotive, marine, and aerospace with a streamlined, digital-first approach to metalwork procurement.

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What Is Surface Roughness in Manufacturing?

Surface roughness is a parameter that characterises a surface texture in relation to its ideal form. It uses standardised expressions and symbols to convey all necessary information concisely.

Even a seemingly smooth surface, when examined under sufficient magnification, reveals a composition of jagged peaks and valleys. The greater the peak and valley height, the rougher the surface.

These microscopic peaks and valleys serve crucial functions, such as enhancing friction and retaining lubrication oil between two sliding surfaces. However, depending on the application, their amplitude must remain within specific ranges.

If the maximum height and depth of peaks and valleys are excessive, it can result in problems such as increased wear and tear, corrosion and fatigue failure. High surface roughness can also impair the performance of seals and disrupt fluid flow. It also makes cleaning more difficult.

On the other hand, very smooth surfaces can reduce lubrication capability and grip, leading to high temperatures and slippage of parts during operation. Additionally, they are more expensive and time-consuming to manufacture, and they have a higher potential for damage.

Furthermore, the smoothness-to-benefit ratio is no longer proportional; that is, extremely smooth surfaces do not provide a corresponding performance bump beyond a certain threshold. Moreover, smooth surfaces have fewer practical applications in the real world.

Why Is Surface Roughness Important?

Quantifying surface roughness is crucial, as achieving perfect surfaces in manufacturing is nearly impossible. This is particularly relevant for commercial products that require short cycle times and strict cost control. Irregularities can occur in all manufactured surfaces due to various factors.

Surface roughness measurement identifies and quantifies irregularities for quality control purposes. By establishing acceptable deviation limits, we can optimise the cost and time associated with manufacturing products to meet specific functional and aesthetic specifications.

Parts produced through CNC manufacturing, mouldings, extrusions, 3D printing, and other methods have their surface roughness predetermined to ensure that each component not only functions as intended but also meets budget and production timelines.

Surfaces that do not meet the desired surface finish can always undergo additional finishing processes to achieve the required quality.

Difference Between Surface Roughness and Surface Finish

Surface finish is a comprehensive indicator that reflects the overall condition of a surface, incorporating additional parameters such as waviness, lay and form, in addition to surface roughness. These parameters can render a part unusable, even if it meets the surface roughness criteria. Therefore, it is essential to understand and define these parameters to prevent costly corrections downstream.

Form, Lay and Waviness

Form refers to the ideal shape of a component. In most cases, it is impossible, and often unnecessary, for a component to achieve its ideal form. The form provides a blueprint outlining the shape and dimensions required for the component to function as intended. The ideal form is always accompanied by tolerances that define the permissible range of deviation, ensuring that the component can still fit and function correctly.

Lay refers to the dominant pattern on a surface that develops as a result of manufacturing processes. The intensity and orientation of the lay pattern depend on the specific manufacturing method used, which can vary significantly between processes such as metal casting, hot and cold rolling, and others. Lay patterns can take on various forms, including parallel, perpendicular, grid, radial, concentric, multi-directional and non-directional. Each pattern is represented by a distinct symbol for quick identification.

Waviness refers to the formation of a wave-like pattern on a surface. The wavelength of waviness is larger than the sampling length, necessitating its separation and consideration during surface roughness measurements. Waviness can occur due to imperfections in manufacturing processes, such as oscillating lead screws, tool blemishes, vibrations, chatter or material strains.

Surface Roughness Parameters and Symbols

Surface Roughness Parameters

We can quantify surface roughness using various parameters. These parameters are obtained through measurement methods that will be discussed in the following sections. Generally, surface parameters in metrology fall into two categories: profile parameters and areal parameters.

Profile parameters are calculated along a line using two-dimensional measurement processes, such as stylus profilometry. They are denoted by the letter ‘R’ followed by an additional character. In contrast, areal parameters assess the entire surface using optical non-contact measurement techniques. These methods generate a three-dimensional map of the surface. Areal parameters are represented by the letter ‘S’ followed by another character.

Profile Parameters

Two of the most commonly used profile parameters are average roughness (Ra) and mean roughness depth (Rz).

Average roughness, or Ra, is primarily used in the United States and is calculated by integrating the absolute values of the peaks and valleys over the sampling length, then dividing that sum by the sampling length.

The formula for the average roughness (Ra) is given by Ra = (1/L) ∫ |y(x)| dx from 0 to L, where:

• L represents the sampling length.

• x represents the distance from the measurement point to the origin.

• y(x) represents the deviation of the surface from the mean line.

The Ra value can be specified in micro-inches or micrometers (microns). Just as 1 meter is equal to 39.37 inches, 1 micrometer (micron) is equal to 39.37 micro-inches.

Mean roughness depth, or Rz, is the internationally preferred measurement. To calculate Rz, the roughness profile is first divided into five equal sections. For each section, the difference between the highest peak and the lowest valley is calculated (denoted as Rt). Rz is then determined as the average of the five Rt values.

For Ra and Rz, a lower value indicates a smoother surface. However, it is important to note that Ra tends to underestimate surface variations, and its value is almost always lower than that of Rz.

Moreover, since Rz relies solely on the furthest points in its calculation, rather than considering the entire surface as Ra does, its value is consistently greater than that of Ra. In most instances, Rz = 7.2 x Ra.

Other important profile parameters when working with surface roughness include:

• Rp – The maximum height of a peak from the mean line.

• Rv – The maximum valley height measured from the mean line.

• Rmax – The maximum distance between the highest peak and the lowest valley within the sampling length.

• RMS – The root mean square (RMS) is the average of the peak and valley height variations from the mean line.

Areal Parameters

Areal parameters provide a more comprehensive overview than profile parameters. They are independent of direction and include a lot more measuring points compared to profile parameters. Some commonly used areal parameters include the following:

• Sa – Arithmetic mean height of the surface

• Sq – Root mean square height of the surface

• Sp – Maximum peak height

• Sv – Maximum valley height

• Sz – Maximum peak-to-valley height over the evaluation length

Surface Roughness Symbols

Surface roughness specifications are indicated on technical drawings using a check-mark-shaped symbol. This symbol is accompanied by numbers and additional markings that define the surface texture parameters, such as roughness values, production methods, machining directions, and lay orientation. The position of each value relative to the symbol determines what it represents:

• Left side: Minimum material removal requirement.

• Between the two lines: Average roughness (Ra) value.

• Right side: Additional parameters (e.g. Rz) or secondary surface requirements.

Modifications to the symbol convey further details:

• A bar across the shorter leg indicates that material removal by machining is required.

• A circle signifies that no further machining is permitted — the required finish must be achieved directly from processes like casting, forging or moulding.

• A horizontal extension allows additional notes such as production method, coating or treatment details.

These conventions are defined in ASTM Y14.36M in the United States. In the UK and EU, the equivalent is ISO 1302:2002 (superseded by ISO 21920-1:2021 under the Geometrical Product Specification framework).

While the basic symbol form is similar, there are minor differences:

• Value placement rules are slightly different.

• ISO places greater emphasis on Ra/Rz notation consistency.

• Some lay and machining indicators vary in format or orientation.

Because of these variations, it’s important to verify which standard applies before interpreting or creating technical drawings.

Surface Roughness Comparison Chart by Manufacturing Processes

How to Measure Surface Roughness

There are several methods for measuring surface roughness, each with its unique advantages and limitations. In this section, we will cover the following measurement techniques:

• Surface roughness comparator

• Stylus profilometer

• Non-contact methods

• Atomic force microscopy

Surface Roughness Comparator

One effective method for quickly assessing the surface profile of a metal is to use a surface roughness comparator. Surface comparators are flat steel plates that feature four to five reference surface profiles, which allow users to evaluate an unknown surface. Users can compare the two surfaces both visually and through tactile examination to determine whether the surface has achieved the desired texture or roughness. To enhance visual inspection, the kit may also include an illuminated magnifier.

Their compact and portable design allows users to quickly assess rough surfaces in the field. Surface roughness comparators are specifically engineered for surfaces resulting from processes such as sandblasting and shot blasting (including bead and grit blasting). Once the inspection is completed satisfactorily, the surfaces can be sent for further processing or painting.

However, surface roughness comparators provide a qualitative assessment. This comparison is subjective and has limited accuracy, as it heavily depends on the operator’s skill and experience. Additionally, these comparators fail to capture other important surface characteristics, such as waviness. The waviness profile significantly influences how a surface interacts with its environment.

Moreover, there is a lack of standardisation, which makes it difficult to compare sets from different manufacturers. Additionally, comparators wear down with use and therefore require periodic recalibration or replacement to prevent errors.

Stylus Profilometer

When an exact surface roughness value is required, it is typically measured using a surface roughness profilometer. A profilometer is a precise instrument designed to measure the microscopic surface geometry of sample surfaces. The stylus profilometer is the most basic type of profilometer and is also more cost-effective compared to other types.

The stylus profilometer features a stylus tip that is drawn across the surface to be measured. According to ISO standards, the profilometer employs a conical stylus with an angle of either 60° or 90° and a spherical tip measuring 2 μm. Typically, the profilometer utilises a sapphire or diamond stylus.

As the stylus moves horizontally across the surface, it captures the vertical distance of the surface features and replicates this information on a recording device. A profilometer can also measure additional surface parameters, such as surface waviness.

Stylus profilometry is renowned for its precision. Depending on the measurement range, it can measure Ra values as low as 0.005 μm and Rz values down to 0.02 μm.

However, it does have certain limitations. For instance, the stylus of a profilometer can scratch or deform delicate surfaces. Additionally, surface measurements typically take significantly longer than non-contact methods, which is a disadvantage in manufacturing processes where high speed is essential.

The stylus profilometer may encounter difficulties when measuring surfaces with high aspect ratio features or those composed of viscous materials.

Non-Contact Methods

Some of the issues associated with stylus profilometers can be mitigated by employing non-contact methods, such as optical profilometers. In this equipment, instruments like white light and confocal replace the stylus. These methods are non-destructive and use techniques such as interferometry to generate a three-dimensional map of the surface.

However, these profilometers are more expensive than stylus profilometers. Additionally, the requirement for sophisticated software and algorithms can occasionally lead to inaccurate measurements, particularly for surfaces with complex topographies or those that are highly reflective or glossy.

Atomic Force Microscopy

How AFM Works - Principle of Atomic Force Microscopy

Atomic force microscopy (AFM) is a special non-contact measurement method to measure surface roughness at the nanometer level. The AFM method uses a sharp probe, also known as a cantilever, that hangs just above the surface without touching it. As the probe scans the surface, it deflects due to the attractive and repulsive forces between it and the surface.

To measure the deflection of the probe, a laser beam is aimed at the back of the cantilever. The beam reflects off the cantilever onto a position-sensitive light sensor. When the probe moves, the laser beam’s reflection moves proportionally. The change in reflection is read and analysed to create a high-definition 3D topographic image of the surface.

AFM is used in highly specialised, niche applications in biotechnology, nanotechnology, materials science, and semiconductor manufacturing.

Wrapping It Up

Surface roughness is a critical parameter that influences everything from performance to aesthetic appeal. These irregularities, as microscopic as they are, play a vital role in how materials interact, wear and function in service.

Understanding the difference between surface roughness and surface finish and parameters like Ra and Rz enables engineers to define surface roughness requirements that optimise for manufacturability, cost and performance

Measurement methods, ranging from simple comparators to atomic force microscopy, offer varying levels of precision depending on the application. Prudent integration of surface roughness into workflows enables manufacturers to reduce failure rates, control costs and create products that can be depended on.

Surface engineering evolves every day, but mastering the basics of surface roughness and the important role it plays in product design will remain essential for anyone involved in metrology, machining and quality assurance. A well-informed approach to surface roughness lays the foundation for well-designed, long-lasting products.

The post Introduction to Surface Roughness – Definition, Parameters, Measurement & More appeared first on Fractory.

What Is a Procurement Cycle?

A procurement cycle is a series of interconnected steps that organisations follow to obtain the necessary resources for their operations. It involves a structured approach that includes planning, sourcing, contracting and managing the procurement process. The procurement team is responsible for overseeing and managing the entire procurement cycle.

The goal of the procurement cycle is to ensure that the organisation acquires the right goods or services at the best possible price, quality and delivery time, while minimising risks and ensuring compliance with regulations.

While we’ve covered the simplified version of various stages of a procurement process in our earlier articles, it is essential to examine each phase in more detail to fully understand its nuances.

Procurement Life Cycle Stages

To make the process a bit easier to follow, we break the procurement life cycle into three phases: planning and strategy, sourcing and contracting, and contract management and close-out. The following sections outline the key steps in each phase, from defining needs and selecting suppliers to managing contracts and closing out the project.

A.  Planning & Strategy (Pre-Procurement)

The pre-procurement phase is a critical foundation for the entire procurement process. It lays the groundwork for successful procurement by ensuring that the organisation’s needs are clearly defined and aligned with its strategic objectives.

STEP 1: Needs Identification

Procurement needs are determined by considering multiple factors such as:

• Specific requirements: Define the procurement objectives and the project’s scope, outlining the specific goods or services required, including technical specifications, quality standards and performance expectations.   

• Quantities and timelines: Determine the exact quantities needed, assess the urgency of the need, and establish realistic delivery deadlines to avoid disruptions in operations.

• Budget allocation: Set a clear budget for the procurement process, considering factors such as the estimated cost of goods or services, transportation costs, potential cost fluctuations, potential risks, and contingency plans. This ensures that the organisation has sufficient funds to acquire the necessary resources.

STEP 2: Market Research

Once needs are identified, comprehensive market research becomes paramount. This involves:

• Market analysis: Conduct market analysis to understand the market dynamics, as well as analyse market trends, pricing fluctuations, quality standards, and delivery options to make informed decisions.   

• Supplier identification and shortlisting: Research potential suppliers based on pre-qualification criteria, including factors like their experience, capacity, reputation, financial stability, pricing, geographical location, references, and ability to meet the organisation’s requirements. A Request for Information (RFI) can be issued at this point to gather preliminary information from potential service providers to facilitate an effective supplier selection. This process involves applying the required measures to shortlist suppliers for further evaluation.

STEP 3: Procurement Strategy Development

An important step in this phase of the procurement process is to develop a procurement strategy to outline the approach that will be taken to acquire the desired goods or services. This includes:

• Strategic objectives alignment: Ensure that the procurement objectives that were defined earlier in the first step (needs identification) are aligned with the overall business objectives and strategic goals.

• Risk assessment: Identify potential risks associated with the procurement process, such as supply chain disruptions, quality issues, contractual risks, or cost risks,  and develop mitigation strategies.

• Evaluation criteria development: Create a comprehensive set of evaluation criteria to assess bids or proposals. These criteria should be objective, measurable and aligned with the procurement objectives.

STEP 4: Procurement Method Selection

The last step in this procurement cycle’s phase is the selection of a suitable procurement method, which is crucial for efficient and cost-effective procurement. 

By carefully assessing the purchase requirements, organisations can select a method that aligns with their needs and helps them achieve their procurement goals. This can be achieved through the following steps:

• Purchase requirements analysis: Carefully assess the nature of the purchase, urgency, complexity, and estimated value.

• Identification of suitable methods: Based on the analysis, determine the most appropriate procurement method or methods. The common procurement methods are:

  • Competitive bidding: A formal process where multiple suppliers submit bids for a specific requirement. Its types are:

    • Open bidding: Any interested supplier can submit a bid.

    • Closed bidding: Only pre-qualified suppliers can submit bids.

    • Reverse auction: The buyer sets the price, and suppliers bid down.

  • Negotiation: A more flexible approach where the buyer and seller engage in contract negotiation and discuss terms and conditions. Its types are:

    • Sole-source negotiation: When there is only one viable supplier.

    • Limited competition negotiation: When there are a few potential service providers.

  • Direct purchase: A simplified process used for low-value or frequently purchased items, emergency purchases, or when there is a sole-source supplier. The company directly buys goods or services from a specific supplier without going through a competitive bidding process like tendering or negotiation. Its types are:

    • Purchase orders: Formal documents authorising purchases, which specify the item’s description, quantity, price, delivery details, and payment terms.

    • Blanket orders: Long-term purchase agreements with pre-approved terms that are used for recurring purchases.

• Cost-benefit analysis: Evaluate the potential costs and benefits of each method to determine the most advantageous option.

• Stakeholder involvement: Involve relevant departments such as the finance team, health and safety team and legal, to ensure alignment and support.

• Consideration of organisational policies: Ensure the chosen method aligns with organisational policies and procedures.

B.  Sourcing & Contracting (During Procurement)

STEP 5: Procurement Execution

The procurement execution phase is where the procurement process is put into action. Depending on the chosen procurement method (competitive bidding, negotiation, or direct purchase), specific steps will be followed.

This section outlines the key activities involved in each method, ensuring a smooth and efficient execution of the procurement process.

• Tender process (applicable to competitive bidding method)

  • Prepare and issue tender documents: Prepare comprehensive tender documents or Request for Proposal (RFP) clearly outlining requirements, detailed specification, evaluation criteria, and submission deadlines, and invite suppliers to participate.

  • Evaluate bids: Perform tender evaluation and assess received quotations against the evaluation criteria, considering factors such as service or product quality, price, delivery terms, and technical capabilities.

  • Negotiate and form a contract: Conduct negotiations with the preferred supplier to finalise contract terms and conditions, including price, payment terms, delivery schedules, and warranty provisions. Ensure that the contract aligns with the project’s requirements and protects the organisation’s interests.

  • Award the contract: Issue a Notification of Award to the selected supplier based on the evaluation process. A formal contract is signed to outline the rights and obligations of both parties.

• Negotiation process

  • Identify potential suppliers: Collect market data or leverage existing supplier relationships.

  • Prepare negotiation strategies: Develop a clear plan outlining key objectives, potential concessions, and fallback positions.

  • Conduct negotiations: Engage in discussions with suppliers to reach mutually agreeable terms.

  • Form a contract: Draft and finalise a contract that reflects the negotiated terms.

  • Award the contract: Formalise the procurement process by awarding the contract to the selected supplier or contractor.

• Direct purchase process

  • Identify needs: Identify and document the need for goods or services.

  • Select supplier: Choose a suitable supplier based on factors such as reputation, past performance, price, and delivery terms. Supplier selection can be made through previous projects, referrals, or researching the market.

  • Create purchase order: Prepare a purchase order or blanket order detailing the items to be purchased, quantity, price, delivery terms, and payment conditions.

  • Obtain supplier approval: Send the purchase order or blanket order to the supplier for review and acceptance, indicating their agreement to the terms and conditions.

C.  Contract Management & Close-Out (Post-Procurement)

STEP 6: Contract Execution and Fulfilment

• Order placement and order management: Ensure the order is placed correctly and managed throughout its lifecycle.

• Goods/Services receipt and inspection: Upon delivery, inspect the goods or services to verify that they meet the specified requirements. Report any discrepancies or defects to the supplier for resolution.

• Invoice processing and payment: Process the invoices from the supplier and verify for accuracy. Make payments according to the agreed-upon terms.

STEP 7: Contract Administration and Evaluation

• Contract management: Oversee the contract to ensure compliance and address any issues. This includes tracking performance, resolving disputes, and making necessary variations.

• Post-contract evaluation: Assess the supplier’s performance and the effectiveness of the procurement process. Provide feedback to the supplier on their performance and document lessons learned from the project for future reference.

STEP 8: Project Completion and Closure

• Project completion: Finalise the project, ensure all deliverables are met, and issue a completion certificate to the supplier.

• Disposal management: Handle the disposal or recycling of any surplus materials or equipment associated with the project in accordance with the relevant regulations.

• Record-keeping: Maintain accurate records of the procurement process, including contracts, Purchase Orders, invoices, and inspection reports, for future reference and audits.

Tools and Technologies

To streamline and optimise the purchasing cycle, various tools and technologies are used:

Choosing the Right Tools

The best tools for every organisation will depend on its specific needs, budget, and team’s expertise. Different factors can be considered:

• Integration with existing systems: To ensure the chosen tools can integrate with the organisation ERP, CRM, and other systems.

• Scalability: To choose the tools that can grow with the organisation.

• Ease of use: To ensure the tools are user-friendly and easy to adopt.

• Cost: To consider the total cost of ownership, including licencing fees, implementation costs, and ongoing maintenance.

By leveraging the right tools and integrating forward-looking technologies, organisations can streamline their procurement processes, reduce costs, improve supplier relationships, and enhance procurement efficiency overall.

Conclusion

The procurement cycle is a critical component of any organisation’s operations. By effectively managing the various stages of the procurement process, businesses can optimise their purchasing activities, reduce costs, and ensure that their needs are met efficiently.

Understanding the procurement cycle and leveraging appropriate tools and technologies is essential for successful procurement outcomes and overall business success.

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Types of Injection Moulding

Injection moulding processes can be categorised in various ways, depending on the criteria used for classification. These criteria may include the working principle of the process, the type of plastic used in the injection moulding process, the types of runner systems, end-product specifications, and other relevant factors.

To provide a comprehensive overview, we will first examine a classification based on the type of material used, followed by a classification that highlights the unique features of different injection moulding processes.

Categorisation Based on Material

• Thermoplastic injection moulding

• Thermoset injection moulding

• Metal injection moulding (MIM)

Thermoplastic Injection Moulding

Thermoplastic injection moulding is one of the most popular and versatile methods for creating lightweight and durable plastic products. Thermoplastic polymers are recyclable materials that can be remolded once a product is no longer needed. They soften when heated and solidify upon cooling, allowing this process to be repeated to produce new items from old ones. Additionally, this method is generally more cost-effective than other manufacturing processes.

Thermoplastic injection moulding is utilised to manufacture a variety of consumer, industrial, and medical products. Some examples include:

• Consumer products: Chairs, clothing (synthetic fibres), toys, appliances, storage bins, cleaning products and more.

• Industrial products: Pumps, gears, ropes, containers and more.

• Medical products: Medical implants, diagnostic tools, respiratory devices, anesthesia equipment, tubing, medical packaging, dental aligners, syringe seals, wound dressings, oxygen masks, ventilator bags and splints for fractures, sprains and strains.

Thermoset Injection Moulding

Unlike thermoplastic polymers, thermosetting polymers are designed for single use and cannot be recycled. This process is often used to manufacture metal replacement parts from plastic in industries such as aerospace, automotive, industrial machinery and medical.

Thermoset injection moulding is similar to thermoplastic molding. In this process, a thermosetting material is heated and injected into a mould where it is permanently set and cured. A common example of a thermosetting material is epoxy. Once epoxy is poured into a mould, it undergoes an irreversible chemical reaction and hardens permanently. It cannot be remelted or reshaped to create new products.

Thermosetting injection moulding can be quite cost-effective for large production runs compared to traditional manufacturing processes. It is also fast, repeatable and offers a wide range of material options to meet the specific requirements of various products. Some examples of products made using thermosetting injection moulding include:

• Aerospace products: Aircraft structure, engine and interior components, protective coatings, adhesives, sealants and more.

• Automotive products: Dashboards, bumpers, fenders, A-pillars, engine components, brake pads, ignition parts, electrical switches, body panels, heat shields, seats and more.

• Industrial products: Pump housings, pipes, valves, gears, insulators, circuit breakers, equipment panels, containment systems and more.

Metal Injection Moulding

Metal injection moulding is a variant of plastic injection moulding in which fine metal powder mixed with a polymer binder is injected into a mould to create metal parts. After moulding, the binder is removed (debinding) and the part is sintered. As-sintered MIM parts typically reach ~96–99% of the alloy’s theoretical density (near-wrought), and optional hot isostatic pressing (HIP) can raise density further (often >99.5%) for demanding applications.

The process excels at small, complex components (often ≤100 g), enabling thin walls and net-shape features. Note that while injection is quick, overall lead time is driven by debinding and sintering, with throughput achieved by processing many parts per furnace batch.

Categorisation Based on Special Features

Some injection moulding processes are customised for specific products or design features. In this section, we will examine the following unique injection moulding processes:

• Cube moulding

• Gas-assisted injection moulding

• Liquid silicone rubber injection moulding

• Thin-wall injection moulding

• Structural foam moulding

• Micro injection moulding

• Reaction injection moulding

• Fusible core injection moulding

• Overmoulding and insert moulding

Cube Moulding

Cube Moulding

Cube moulding is a specialised form of injection moulding process that uses a cube-shaped mould to produce circular plastic components. The cube can rotate along the vertical axis, allowing for the use of its multiple sides to mould various parts. Although this technology is relatively new, it boasts high efficiency and can reduce the production time per component to less than 0.25 seconds, offering about a 40% reduction in cycle times.

The process uses multiple parting lines that are sequentially injected with material to create multi-material or multi-component parts. The cube mould is rotated either 90° or 180° between successive injections. While the second injection occurs on one side, the first injection is repeated on a different side of the cube. This allows for injection, cooling, and part ejection to be conducted simultaneously on multiple sides, effectively doubling productivity.

Cube moulding offers several advantages, including a reduced space requirement (higher output per footprint), the capability to produce highly complex parts using multiple materials and colours, and quick cycle times (up to 10,000 parts per hour). It also supports diverse applications, allowing for the easy creation of one-, two-, or three-component parts. Additionally, there is a high potential for automation, as operations such as inserting, unscrewing, assembling and testing can be automated to achieve consistent quality without human intervention. Other benefits include a lower clamping force and compatibility with high-volume production.

Gas-Assisted Injection Moulding

Gas Assisted Injection Moulding

Gas-assisted injection moulding uses pressurised gas to create hollow spaces or cavities within the moulded part. Gases exert equal pressure in all directions when contained within a closed environment. This property is leveraged in this injection moulding process to ensure uniform wall thickness throughout the moulded component.

The final products from this moulding process exhibit a smooth, high-quality, glossy finish. Additionally, the process requires lower clamping pressures, which in turn reduces both costs and wear on the moulding machine.

As the gas fills the thicker sections, the likelihood of sink marks appearing on the part also decreases.

Sink marks are shallow depressions on the surface of injection-moulded parts that occur due to uneven cooling. The surface cools more quickly than the core material, causing the core material to pull the surface material inward and leaving small crater-like depressions on the surface.

Liquid Silicone Rubber Injection Moulding

This liquid silicone injection moulding process uses silicone, a thermosetting polymer known for its unique properties, including a smooth surface finish, high-quality appearance, durability, biocompatibility, thermal stability, and excellent electrical and chemical resistance.

Unlike typical injection moulding materials, silicone remains in a liquid state at room temperature and can be poured directly into the moulding machine without the need for heating. However, it does require vulcanisation—a process in which rubber is hardened using heat and sulphur.

Thin-Wall Injection Moulding

Creating thin walls presents a significant challenge in injection moulding. For specialised mass production applications, using the thin-wall injection moulding process is considerably more effective. This method employs specialised equipment designed to manufacture thin-walled products for various applications.

The thickness of a product largely depends on its size. For small components, thin walls may have a thickness of less than 0.5 mm. In contrast, larger parts can have significantly greater thicknesses while still necessitating thin-wall injection moulding equipment. The key differentiator in this process is the flow length-to-thickness ratio, with some components exhibiting a ratio greater than 200.

Thin-wall injection moulding offers several advantages, including high material efficiency, rapid cycle times and cost savings. This technique is commonly employed to produce containers, enclosures and equipment housings. 

Structural Foam Injection Moulding

Structural Foam Moulding

Structural foam moulding uses gases mixed with the plastics to force the plastic material against the mould walls. This process is a form of low-pressure injection moulding.

In this process, thermoplastic and thermosetting polymers are mixed with nitrogen gas during the melting phase and injected into the mold. The incorporation of nitrogen induces foaming in the material. The gas dilutes the core while pushing the material outward toward the mould walls. When the material contacts the cold walls of the mould, the foam bubbles collapse, and the material solidifies, resulting in increased density at the walls. Consequently, a solid outer layer with a lighter core is achieved.

Structural foam injection moulding does not require steel moulds due to the use of lower pressures. Instead, aluminium or other lighter metals are used, making it more cost-effective. The finished parts can be larger compared to those produced by other injection moulding processes, making it suitable for manufacturing bigger components such as car roofs, housings, plastic pallets, trim panels, large equipment covers, kiosk enclosures and more.

The process is highly cost-efficient, and the increased porosity provides the components with exceptional thermal and acoustic insulation. However, it has several drawbacks, including lower production speeds, the requirement for thick walls (at least 1/4 inch or 6 mm), increased post-processing, and rougher surface finishes.

Micro Injection Moulding

Micro injection moulding is a specialised injection moulding process that produces miniature plastic components typically weighing less than one gram. These parts find use as micro gears, medical syringes and needles, micro implants, connectors, and in electronic circuit boards. This process is characterised by its high precision, as the parts must adhere to tolerance ranges measured in microns. Additionally, they may incorporate intricate features such as thin walls and micro holes.

The production process is similar to standard injection moulding, but it operates on a microscopic scale. The injection moulding machine is equipped with a micro injection unit to accommodate the small components. Material quantities weighing mere fractions of a gram are precisely injected into the mould. Otherwise, insignificant features like parting lines can make or break a part in micro injection moulding.

Micro-injection moulded parts are increasingly being used in the medical industry due to their size advantages. These components enable the safe performance of minimally invasive surgeries, including neurosurgery and aortic procedures.

Reaction Injection Moulding

Reaction Injection Moulding

Reaction injection moulding (RIM) uses two or more reactive liquid polymers to produce strong and durable components. The two monomers, typically a resin and a hardener, are combined in a specialised mixing chamber to form a homogeneous mixture. Once prepared, this mixture is injected into the mould at relatively low pressures (up to 100 bar) until the mould cavity is completely filled.

The mixture undergoes an exothermic reaction within the mould, which may be accompanied by gas emissions or foaming, followed by solidification. The solid components are then ejected from the mould and sent for post-processing as necessary.

Some processes may involve the incorporation of reinforcing materials, such as glass fibres or mica, to enhance the strength and stiffness of the final part. These processes fall into two categories: structural reaction injection moulding and reinforced reaction injection moulding.

In structural RIM, reinforcing agents, such as carbon fibre meshes, are positioned in the mould cavity prior to the injection of the liquid mixture. As the mixture solidifies around the fibres, the fibre structure enhances the strength of the component.

In reinforced RIM, reinforcing agents such as glass fibre and silica are combined with the liquid mixture before injection.

Fusible Core Injection Moulding

Fusible core injection moulding, also known as lost core injection moulding, is a specialised variant of the injection moulding process used to create internal cavities or undercuts that cannot be achieved with demouldable cores. Demouldable cores are those that can be removed from the parts after the injection process.

In such cases, we use fusible cores that either dissolve on their own or can be melted later to separate them from the finished part. This process is referred to as soluble core injection moulding when the core is composed of plastic.

Fusible core injection moulding consists of three main stages: core preparation, core insertion into the mould and shooting the mould, and removal of finished parts and the melting of the core.

The core may consist of a low-melting-point metal, such as a tin-bismuth alloy, or a soluble polymer. These materials typically have a melting temperature around 150 °C. It is crucial to ensure that the cores are non-porous to prevent defects in the final product. Additionally, polymer cores offer the advantage of being manufactured in-house using conventional injection machines.

The cores are then inserted into the mould. This process can be as straightforward as placing the core and closing the mould. However, for more complex parts, automation provides superior results due to its enhanced accuracy and speed. Once the core is securely positioned and the mould is closed, molten plastic is injected into the mould. Upon solidification, the core is removed from the moulding using a hot bath or through induction heating.

While the first fusible core injection moulding process was patented in 1968, it did not gain widespread adoption until the automotive sector turned to it to manufacture parts such as intake manifolds and brake housings.

Overmoulding and Insert Moulding

Overmoulding

Overmoulding is a specialised type of injection moulding process that involves the sequential moulding of two or more plastic parts one over the other, across multiple stations to create a multi-material part. This process uses multiple injection units that supply various cavities. The base, referred to as the substrate, is moulded first, followed by the higher layers being moulded as the part progresses through the different stations. When two materials are used in the moulding process, it is commonly known as two-shot injection moulding.

Overmoulding enables the production of multi-material components, such as plastic parts with rubber handles. This technique is commonly employed in the manufacturing of grips, toothbrushes, knobs, perfume bottles and more.

A variant of overmoulding is insert moulding, which involves using a prefabricated substrate that is coated with plastic material. For example, a metal screwdriver can be encased in a plastic handle. The substrate is secured inside the mould, and molten plastic is injected into it. Insert moulding products are ubiquitous, appearing in various forms such as cables, pacemakers, electrical sensors, fasteners, and more.

The key difference between the two processes is that overmoulding involves moulding a rubber-like plastic around another plastic material, while insert moulding refers to the moulding of plastic around a non-plastic object.

The post Different Types of Injection Moulding Processes – An Overview appeared first on Fractory.

This article explores the concepts of category management and strategic sourcing, highlights their key differences, and explains how these approaches complement one another. It also delves into the Kraljic Matrix, a foundational tool for procurement strategy, to contextualise these methods.

What Is Strategic Sourcing?

Strategic sourcing is a systematic process aimed at optimising procurement decisions for specific projects or needs. By focusing on detailed data analysis and supplier evaluation, it enables organisations to secure the best value within defined timeframes.

Key Features of Strategic Sourcing

1. Project-focused: Applied to specific procurement events or categories for immediate results.

2. Data-driven: Involves analysing spend patterns, supplier markets and cost structures.

3. Time-bound: Works within a finite timeline, often tied to contract renewals or sourcing initiatives.

4. Goal-oriented: Targets measurable outcomes such as cost savings, supplier consolidation, or risk reduction.

5. Procurement-led: Typically spearheaded by procurement teams, with limited involvement from other departments.

When to Use Strategic Sourcing

Strategic sourcing is ideal for situations requiring immediate attention, such as contract renegotiations, new supplier selection, or for market research and price benchmarking. For example, a company may use strategic sourcing to negotiate a better deal for fleet management services to align with their business strategy to reduce costs.

What Is Category Management?

Category management goes beyond individual procurement events to manage an entire category of spend across the whole organisation or a specific strategic business unit. It aims to align procurement strategies and activities with the business units’ organisational goals, ensuring sustainable value over time.

Category management can go beyond typical strategies such as cost optimisation but also focus on a longer-term, more holistic view in areas such as vendor risk management, supplier management and continuous improvement.

Key Features of Category Management

1. Holistic approach: Focuses on developing a category strategy across the entire lifecycle of a spend category, from sourcing to supplier relationship management.

2. Strategic alignment: Ensures procurement supports broader organisational objectives, such as sustainability or innovation.

3. Continuous process: Unlike strategic sourcing, category management is an ongoing activity.

4. Cross-functional collaboration: Involves stakeholders from various departments to understand and address category-specific needs.

5. Value creation: Looks beyond cost savings to optimise total value, including risk mitigation and supplier innovation.

When to Use Category Management

Category management is best suited for high-value, complex spend categories where long-term planning and market expertise are critical to support business strategy. For instance, managing IT procurement holistically can help align technology investments with the organisation’s digital transformation strategy.

The Kraljic Matrix: A Framework for Procurement Strategy

The Kraljic Matrix, developed by Peter Kraljic in 1983, is a widely used tool for determining procurement strategy based on two key dimensions: supply risk and spend impact. It categorises procurement items into four quadrants:

1. Non-critical items

• Low supply risk, low spend impact

• Examples: Office supplies, cleaning products.

• Recommended approach: Tactical procurement or simple strategic sourcing.

2. Leverage items

• Low supply risk, high spend impact

• Examples: Commodities like steel or paper.

• Recommended approach: Strategic sourcing to drive cost savings through supplier competition.

3. Bottleneck items

• High supply risk, low spend impact

• Examples: Specialised components with limited suppliers.

• Recommended approach: Supplier relationship management and risk mitigation strategies.

4. Strategic items

• High supply risk, high spend impact

• Examples: Critical IT systems, unique raw materials.

• Recommended approach: Category management to ensure long-term value and secure supply continuity.

The Kraljic Matrix helps procurement teams decide when to apply strategic sourcing versus category management. For instance, while leverage items might benefit from a short-term competitive bidding process, strategic items require a comprehensive category management strategy to mitigate risks and maximise value.

Key Differences Between Strategic Sourcing and Category Management

While both approaches aim to optimise procurement, they differ in scope and objectives.

Complementary Roles

Strategic sourcing delivers quick wins, while category management ensures those wins are sustained and integrated into long-term strategies. For example, strategic sourcing may reduce costs for office supplies in the short term, while the category management process often focuses on improving supplier relationships and sustainability practices across the category.

Case Study: Transforming IT Procurement with Strategic Sourcing and Category Management

Scenario: A multinational retailer faced inefficiencies in its IT procurement process. Multiple contracts with software vendors resulted in fragmented spend, high costs and missed renewal deadlines.

Challenge: The company lacked a unified approach to managing IT procurement, limiting its ability to achieve business goals through cost efficiencies or innovation.

Solution: The retailer adopted a dual approach:

1. Strategic sourcing: Ran a tender to consolidate suppliers, securing a single provider for enterprise-wide software licences.

2. Category management: Appointed a category manager to oversee IT procurement, ensuring alignment with the company’s digital transformation goals.

Outcome:

• Reduced software licensing costs by 20% within six months.

• Streamlined supplier relationships and improved compliance.

• Developed a long-term roadmap for IT investments, enabling innovation.

Key Lesson: Combining strategic sourcing with category management enables organisations to achieve immediate cost savings while driving sustainable value.

Implementing Both Approaches

Procurement teams must balance short-term and long-term strategies by integrating strategic sourcing and category management.

Steps to Success

1. Assess spend and risk
   Use tools like the Kraljic Matrix to categorise procurement items and decide the appropriate strategy.

2. Build expertise

   • Train teams in analytical techniques for strategic sourcing.

   • Appoint experienced category managers with deep market knowledge.

3. Leverage technology
   Invest in tools that support both approaches, such as spend analytics software and supplier relationship management platforms.

4. Collaborate across functions

   • Involve stakeholders in category management to align procurement goals with business objectives.

   • Use feedback from operational teams to inform sourcing strategies.

5. Measure outcomes

   • Strategic sourcing: Track cost savings, supplier performance and contract compliance.

   • Category management: Evaluate value creation, risk mitigation and innovation contributions.

Ready to Optimise Your Procurement Strategy?

Understanding the nuances between the strategic sourcing process and category management is just the beginning. By applying these concepts and tools like the aforementioned Kraljic Matrix, your organisation can unlock significant value.

Start your transformation today by:

• Conducting a spend analysis to identify key categories.

• Exploring tools and platforms to streamline your procurement processes.

• Training your team on best practices for sourcing and category management.

Further Reading

• “The Procurement and Supply Manager’s Desk Reference” by Fred Sollish and John Semanik – A comprehensive guide covering both strategic sourcing and category management.

• “Supply Chain Management: Strategy, Planning, and Operation” by Sunil Chopra – Provides in-depth insights into procurement and sourcing strategies.

• Peter Kraljic’s original article: “Purchasing Must Become Supply Management”, Harvard Business Review (1983).

The post Strategic Sourcing vs Category Management – What’s the Difference? appeared first on Fractory.

At its core, negotiation is about understanding people, solving problems and finding common ground. It blends strategy, communication and empathy to create outcomes where everyone feels heard—and ideally, everyone wins.

This article breaks down the principles, tactics, and ethical foundations of successful negotiation. Whether you’re navigating a complex deal or advocating for your role within a team, you’ll find practical tools and insights to help you develop essential negotiation skills and approach each discussion with clarity and confidence.

Understanding the Basics

What Is Negotiation?

Negotiation is a process of discussion and trade-off between two or more parties to reach a mutually agreeable outcome. It involves a give-and-take approach, where each party seeks to maximise their gains while minimising their losses. Effective negotiation requires a combination of skill, strategy, diplomacy and empathy.

Importance of Negotiation

Negotiation is a valuable skill that can benefit individuals and organisations in various ways:

• Resolving conflicts peacefully

• Building strong relationships

• Achieving favourable outcomes

• Enhancing problem-solving and decision-making

Key Negotiation Styles

Different individuals approach negotiation with distinct styles. Understanding these styles can help you adapt your approach accordingly:

• Competitive: Focused on winning and may not prioritise relationships.

• Collaborative: Seeks win-win solutions and emphasises cooperation.

• Avoidant: Prefers to avoid conflict and may withdraw from negotiation.

• Accommodating: Prioritises the needs of others over their own.

• Compromising: Seeks middle ground and is willing to compromise to navigate challenges and reach mutually acceptable outcomes.

By understanding these styles, people can adapt their approach to suit the situation and the other party’s preferences, thereby increasing the chances of successful outcomes.

The Negotiation Process

The negotiation process typically involves five key stages:

Stage 1: Preparation

• Define goals and desired outcomes.

• Assess your BATNA (Best Alternative To a Negotiated Agreement).

• Research the other party’s interests and priorities.

• Develop a negotiation method, including opening offers and potential concessions.

Stage 2: Opening and relationship building

• Establish rapport and a positive atmosphere to set the tone for a constructive conversation.

• Present your position clearly and confidently.

• Actively listen to the opposing party’s perspective.

• Use effective communication to convey your message.

Stage 3: Bargaining / problem‑solving

• Exchange offers and counteroffers.

• Employ persuasion techniques to influence the other party.

• Collaborate to find mutually beneficial solutions that satisfy both sides at the bargaining table.

• Utilise negotiation tactics like anchoring, reciprocity, and the scarcity principle.

Stage 4: Closing and agreement

• Summarise the deal and confirm mutual understanding.

• Finalise the deal with a written contract or formal documentation to avoid misunderstandings.

• Build and maintain relationships with the other party.

Stage 5: Implementation and review

• Reflect on the process of negotiation to identify what could have been better and what went good.

• Seek feedback to improve future performance and grow into a consistently good negotiator.

• Document lessons learnt for future reference.

Negotiation Tactics and Strategies

Negotiation is as much about psychology and perception as it is about facts and figures. Effective and successful negotiation involves a combination of skill, strategy, and understanding how to leverage your bargaining power.

Key Negotiation Tactics

• The power of silence: Using strategic pauses to create tension and encourage the second party to speak. Be patient and avoid filling the silence with unnecessary talk.

• The anchoring technique: Setting the initial terms of the negotiation can significantly influence the outcome. Use strong arguments and supporting data to justify your anchor.

• The reciprocity principle: Offering concessions to encourage the other party to reciprocate. Be strategic about the timing and size of concessions; do not give away too much too soon.

• The scarcity principle: Highlighting the limited availability of resources or opportunities to increase their perceived value. Create a sense of urgency and use deadlines to motivate the opposing party to accept your offer and make timely decisions.

• The social proof principle: Using third-party endorsements to strengthen your position. Cite industry standards, case studies, or expert opinions to support your claims. Leverage testimonials or endorsements from satisfied clients or customers.

• The “nibble” technique: Asking for small concessions at the end of the negotiation, when the other party may be more inclined to agree. It is a subtle and effective way to extract additional value without jeopardising the overall deal, yet avoid overusing this tactic as it can irritate the other side.

• The “bogey” tactic: Pretending to value something less important to you can make the negotiating partner believe they have made a significant concession, making them more likely to agree to your demands on more important issues.

Effective Negotiation Strategies

• Active listening: Paying full attention to the other party’s perspective ensures a two-way conversation that uncovers shared interests and trade-offs.

• Clear communication: Articulating your goals and desires clearly and concisely, and expressing your views confidently while avoiding being aggressive.

• Building rapport: Establishing a positive and trusting relationship can lead to more productive and collaborative negotiations.

• Flexibility: Being open to give-and-take and creative solutions. A willingness to adapt to changing circumstances can help reach mutually beneficial deals.

• Maintaining composure: Staying calm and focused, even under pressure. Emotional outbursts can hinder negotiations.

• Knowing your BATNA: Understanding your alternatives to a negotiated agreement to set realistic expectations and walk away if necessary.

Negotiation Ethics

While negotiation is a strategic endeavour, it is essential to maintain ethical standards. Ethical negotiation not only builds trust and long-lasting relationships, but also ensures fair and equitable outcomes.

Key Ethical Principles in Negotiation

Honesty and integrity

• Be truthful and transparent in your dealings.
• Avoid making false claims or misleading statements.
• Maintain a high level of integrity, even when under pressure.

Respect for others

• Treat all sides with dignity and respect.
• Listen actively to their concerns and perspectives.
• Avoid personal attacks or insults.

Fairness and equity

• Strive for fair and equitable outcomes for all parties involved.
• Avoid taking advantage of others or exploiting weaknesses.
• Consider the long-term consequences of your actions.

Openness and transparency

• Be clear and upfront about your intentions and goals.
• Avoid hidden agendas or surprise tactics.
• Share information openly and honestly.

Legal and ethical compliance

• Adhere to laws and regulations by ensuring all negotiations comply with legal frameworks.
• Refrain from bribery, coercion, or fraud and avoid any unethical practises.
• Respect intellectual property rights by protecting proprietary information and trade secrets.

Keeping commitments

• Once a deal is reached, honour your commitments.
• Avoid breaking promises or reneging on deals.
• Build a reputation for reliability and trustworthiness.

Ethical Dilemmas in Negotiation

• Bluffing: While strategic bluffing can be effective, it’s important to avoid outright lies.

• Withholding information: Withholding relevant information can be unethical, especially if it could harm the other party.

• Pressure tactics: Using high-pressure tactics, such as threats or ultimatums, can damage relationships and lead to negative outcomes.

By adhering to ethical principles, you can build a strong reputation as a fair and trustworthy negotiator. Ethical behaviour fosters long-term relationships, enhances your credibility, and ultimately leads to more successful negotiations. Moreover, it not only strengthens your position but also contributes to a more just and equitable society.

Common Negotiation Pitfalls to Avoid

Even experienced negotiators can fall into common pitfalls that can undermine their success.

Here are some key mistakes to avoid:

• Inadequate preparation: Neglecting thorough research and not setting clear goals can lead to suboptimal results.

• Focusing on positions, not interests: Prioritising specific demands over underlying interests, rather than focusing on interest-based negotiation and finding common ground, can hinder progress.

• Emotional decision-making: Allowing emotions to cloud judgement can lead to poor decisions and damaged relationships.

• Overconfidence and arrogance: Excessive confidence and overestimating one’s abilities can lead to unrealistic expectations and missed opportunities.

• Overcommitting: Making unrealistic promises can damage credibility and impede future negotiations.

• Disregarding the counterpart’s needs: Failing to empathise and find common ground can limit the potential for mutually beneficial outcomes.

• Poor listening skills: Not paying attention to the opposing party’s perspective can lead to misunderstandings and miscommunication.

• Fear of conflict: Avoiding difficult conversations and compromising too quickly while being afraid to push for a better deal can lead to unfavourable conclusions.

• Accepting the first offer: Quickly accepting an initial offer may not be the best outcome and may lead to missing out on potential gains.

• Neglecting post-negotiation follow-up: Failing to document and maintain relationships can lead to disputes.

• Overreliance on tactics: Using tactics without considering the long-term relationship can damage trust and hamper future negotiations.

Additional Tips 

Beyond the core strategies and tactics, here are some additional tips to enhance your negotiation skills:

Personal Development

1. Emotional intelligence:

   • Understand your own emotions and how they influence your behaviour.

   • Manage stress and improve focus through practising relaxation techniques.

2. Effective communication:

   • Practise active listening by paying full attention, asking clarifying questions, and paraphrasing to ensure understanding.

   • Use clear, concise language and avoid jargon.

3. Continuous learning:

   • Reflect on past experiences through analysing past negotiations to identify areas for growth.

   • Seek constructive feedback from trusted colleagues and mentors to gain new perspectives.

4. Building relationships:

   • Focus on building strong, lasting relationships based on trust and mutual respect.

   • Develop empathy to understand the counterpart’s perspective, guide the conversation toward common ground, and build solid rapport.

Strategic Thinking

1. Know your bottom line: Determine your minimum acceptable outcome and stick to it.

2. Identify the other party’s interests: Understand what the counterpart wants to achieve.

3. Prepare thoroughly: Research the counterpart, gather relevant information, and develop a strong negotiation strategy.

4. Anticipate objections: Prepare responses to potential objections and counterarguments.

Practical Tips

1. Dress professionally: Your appearance can influence the perception of your credibility.

2. Be punctual: Arrive on time to show respect for the other party.

3. Use body language effectively: Maintain eye contact, use open body language, and avoid defensive postures.

4. Practise mindfulness: Stay focused and present during the negotiation.

Ethical Tips

1. Golden rule: Treat others as you would like to be treated.

2. Honesty and integrity: Be truthful and transparent in your dealings with others.

3. Fairness: Strive for fair and equitable outcomes for all individuals involved.

4. Legal and ethical compliance: Ensure that your negotiation tactics comply with all applicable laws and regulations.

Real-World Examples

Negotiation is a pervasive skill, applicable to various aspects of life. Engineers, in particular, find themselves in numerous negotiation scenarios. From project deadlines and budgets to vendor contracts and salary increases, effective negotiation skills are essential.

Here are some real-world examples:

Project Management

• Deadlines: Negotiating extensions to ensure quality.

• Budget: Advocating for increased funding to optimise projects.

• Resources: Securing additional personnel or equipment.

Research and Development

• Funding: Pitching innovative ideas to secure funding.

• Collaborations: Forming partnerships with other researchers or institutions.

• Intellectual property: Protecting and licencing intellectual property rights.

Product Development

• Supplier contracts: Negotiating favourable terms for cost-effective and high-quality components.

• Product specifications: Balancing technical feasibility with market demands.

• Product launch timing: Coordinating development timelines with market expectations.

Career Advancement

• Salary: Negotiating higher salaries and competitive compensation packages.

• Job offers: Leveraging multiple offers to secure the best and fair deal.

• Performance reviews: Advocating for recognition, and performance-based raises or rewards.

Conclusion

Negotiation is more than a transactional exchange—it’s a skill rooted in preparation, empathy, and strategic thinking. Whether you’re discussing project terms, managing partnerships, or advocating for yourself, approaching each negotiation with clarity and intent can lead to better outcomes and stronger relationships.

By understanding the fundamentals, applying effective techniques, and staying grounded in ethical principles, you put yourself in a position not just to “win” negotiations, but to create value for everyone involved. Mistakes and setbacks are part of the process, but each interaction is a chance to learn and refine your approach.

With ongoing practice, a mindset of curiosity, and a willingness to adapt, you’ll find that negotiation becomes less of a high-stakes event and more of a natural part of everyday problem-solving.

The post How to Negotiate: Tips, Strategies & Tactics for Better Outcomes appeared first on Fractory.

These tens of thousands of plastics can be categorised into approximately 45 polymer families. More broadly, they’re typically divided into two major categories: thermoplastic and thermosetting polymers, used across different injection moulding processes. Thermoplastic polymers are reusable, while thermosetting polymers are intended for single-use applications.

In this article, we’ll explore 13 of the most common plastics widely utilised in the injection moulding process:

• Acrylonitrile butadiene styrene (ABS)

• Polymethyl methacrylate (PMMA)

• Polyoxymethylene (POM)

• Polycarbonate (PC)

• High-density polyethylene (HDPE)

• Low-density polyethylene (LDPE)

• General-purpose polystyrene (GPPS)

• High impact polystyrene (HIPS)

• Polyphthalamide (PPA)

• Polypropylene (PP)

• Polybutylene terephthalate (PBT)

• Polyethylene terephthalate (PET)

• Polyvinyl chloride (PVC)

Before we proceed, let’s revisit the concept of the resin identification code and its significance.

Resin Identification Code

Resin Identification Code (RIC) is a numerical system ranging from 1 to 7, located at the bottom of plastic products. This code simplifies the recycling process by identifying the type of resin used in the plastic product, which is crucial since not all plastics are equally recyclable. For example, while polypropylene is 100% recyclable, polyvinyl chloride (PVC) is not commonly recycled.

The RIC number was initially enclosed within the familiar recycling symbol (three arrows forming a triangle), which led to some confusion among consumers. Over time, the arrows have been replaced by a solid triangle to avoid this ambiguity, although the original design can still be found on some products even today. 

The codes 1 to 7 correspond to the following types of plastics:

• 1: Polyethylene terephthalate (PET or PETE)

• 2: High-density polyethylene (HDPE)

• 3: Polyvinyl chloride (PVC)

• 4: Low-density polyethylene (LDPE)

• 5: Polypropylene (PP)

• 6: Polystyrene (PS)

• 7: Other plastics, such as acrylic, nylon and polycarbonate (PC)

We will cover these and other common plastics in detail throughout this article. Let’s begin by exploring acrylonitrile butadiene styrene (ABS).

Acrylonitrile Butadiene Styrene (ABS)

Acrylonitrile butadiene styrene (ABS) is a thermoplastic known for its exceptional blend of mechanical properties, including toughness, chemical resistance, impact resistance, and moderate heat resistance. Its high mechanical toughness imparts desirable characteristics such as strength, durability, and dimensional stability. Additionally, ABS is biocompatible, further increasing its versatility. These attributes have established ABS as one of the most widely used materials in plastic injection moulding.

ABS is an opaque polymer that can be easily dyed. It’s cost-effective and recyclable, which helps reduce expenses associated with raw materials. Moreover, ABS is straightforward to machine. The combination of these properties makes it ideal for a diverse set of industries.

However, ABS does have certain limitations. It’s unsuitable for high-temperature applications due to its low glass transition temperature. Additionally, prolonged exposure to harsh weather conditions can cause ABS to become brittle and discoloured over time. Its relatively low dielectric strength limits its use in certain electrical components, and the material is also flammable, has a low melting point, and exhibits limited resistance to solvents.

Performance of ABS in outdoor environments can be enhanced by incorporating carbon black and UV stabilisers. Similarly, ABS products can be made fire-resistant by adding flame-retardant additives or by blending them with PVC.

ABS is ideal for indoor applications such as toys, containers, consumer devices, keyboards, musical instruments, phone cases, cosmetic packaging, and pipes and fittings. It is also widely used in outdoor applications, including automotive parts, car bumpers, dashboards, safety helmets, and luggage.

Polymethyl Methacrylate (PMMA)

Polymethyl methacrylate (PMMA), commonly known as acrylic or acrylic glass, is a transparent thermoplastic primarily used as an alternative to glass.

PMMA has a light transmittance rate of 92%, higher than that of standard glass, and offers ten times greater impact resistance. Additionally, it weighs roughly half as much as glass, making it more manageable and safer due to its reduced risk of breakage. Polycarbonate is another common glass substitute, but PMMA has superior scratch resistance compared to polycarbonate, though it remains less scratch-resistant than glass.

Compared to many other polymers, PMMA demonstrates greater resistance to chemicals, UV radiation, and weathering. This combination makes it ideal for outdoor applications requiring prolonged exposure to the elements. Additionally, PMMA is recyclable, biocompatible, non-biodegradable, and resistant to yellowing over time.

However, PMMA does have certain limitations. It is less impact-resistant compared to some alternative plastic materials. Its heat resistance is also limited, becoming vulnerable at temperatures above 80 °C. Additionally, it is susceptible to organic solvents, lacks strong abrasion and wear resistance, and may crack under lower mechanical loads.

Thanks to its excellent optical properties, PMMA is ideal for transparent applications such as LED lenses, car windows, light shades, household lighting covers, and protective shields. It is also suitable for various non-transparent applications, including dentures, bone replacements, light pipes, signage, optical fibres, decorative items, and safety equipment.

Polyoxymethylene (POM)

Polyoxymethylene (POM), also referred to as acetal or polyacetal, is a semi-crystalline thermoplastic material possessing excellent mechanical properties, making it suitable for applications subjected to high forces. It is frequently used as a metal substitute in high-precision engineering components.

Some favourable properties of POM include high strength, excellent lubricity, low friction, high dimensional stability, generally good chemical resistance, increased fatigue strength, high toughness, significant rigidity, good abrasion resistance, and low creep.

POM has a relatively broad service temperature range, from -40 °C to 140 °C. However, it becomes brittle at lower temperatures and can outgas at higher temperatures, releasing by-products such as water vapour, gases, and oils.

Other disadvantages of POM include its susceptibility to stress cracking, high material cost, potential discoloration, flammability, thermal degradation, low UV resistance, moisture absorption, and limited resistance to certain chemicals.

POM is ideal for applications requiring stiffness, strength, and high wear resistance. Common applications include engineering components such as gears, cams, bushings, bearings, impellers, automotive parts, zippers, water pipes, battery compartments, sockets, and industrial machinery.

However, it’s useful to keep in mind that when tolerances are critical, CNC‑machined POM parts (Delrin, etc) outperform most moulded options.

Polycarbonate (PC)

Polycarbonate (PC) is a widely used plastic injection moulding material, primarily due to its ability to achieve tight tolerances and maintain dimensional stability. It offers excellent optical clarity, making it ideal for applications such as lenses, lighting, and other transparent uses. Additionally, it possesses a relatively high melting point, distinguishing it from other plastics on this list.

PC exhibits excellent mechanical properties, including high strength, impact resistance, good heat resistance, electrical insulation, weathering and radiation resistance, lightweight characteristics, and low flammability.

However, it has limited chemical resistance, particularly to certain solvents and petrochemicals. While PC can filter UV light, prolonged exposure causes it to turn yellow. Additionally, the material is susceptible to scratching.

Polycarbonate is widely utilised in the production of lenses, automotive headlights, sunroofs, greenhouse panels, medical devices, food containers, water bottles, bulletproof glass, casings for consumer electronics, and outdoor signage. It is also extensively employed in protective gear, including face shields, safety goggles, and helmets.

High-Density Polyethylene (HDPE)

High-density polyethylene (HDPE) is a denser variant of polyethylene, identified by the resin identification code 2.

HDPE is a thermoplastic compound with excellent mechanical properties, including high tensile strength, high toughness, impermeability, strong chemical resistance, high impact resistance, and electrical insulation. It also offers a broad service temperature range (-40 °C to +90 °C) and demonstrates excellent low-temperature resistance. Additionally, HDPE is dimensionally stable, cost-effective, recyclable, and exhibits low moisture absorption.

However, it has certain limitations, including high thermal expansion, flammability, poor weather resistance, and susceptibility to stress cracking.

The combination of properties makes HDPE a suitable choice for applications such as insulation cables, shampoo bottles, cutting boards, and piping. Beyond household items, HDPE is also employed in plastic surgery (skeletal and facial reconstructions), as well as in wood-plastic composites, snowboards, and other low-temperature applications.

Low-Density Polyethylene (LDPE)

Low-density polyethylene (LDPE) is the lighter, more flexible variant of polyethylene, identified by resin identification code 4.

LDPE is a soft, lightweight, and flexible thermoplastic polymer primarily used to manufacture pipes and storage containers such as plastic bags and dispensing bottles.

Compared to HDPE, LDPE is more flexible and has a lower melting point. It is also chemically resistant, making it an ideal choice for applications involving exposure to harsh chemicals. LDPE is cost-effective and recyclable, demonstrates excellent electrical insulation properties and good moisture resistance.

However, LDPE lacks high strength, experiencing plastic deformation under relatively low forces compared to other injection moulding plastics. Additional limitations include high flammability, significant thermal expansion, lower maximum service temperature, and poor UV resistance.

LDPE is commonly used in the production of shrink wrap, containers, squeeze bottles, plastic bags, tubing, trash can liners, bubble wrap, and plastic parts for computers.

General Purpose Polystyrene (GPPS)

Polystyrene (PS), commonly referred to as general-purpose polystyrene (GPPS), is a widely used thermoplastic with a resin identification code of 6. Its advantageous properties include transparency, rigidity, precise dimensional control, and excellent mouldability.

GPPS products exhibit exceptional mechanical and electrical properties, along with an appealing colour and appearance. Additionally, its ease of processing makes moulding highly efficient.

Key disadvantages include fragility at room temperature, poor high-temperature resistance, high flammability, and inadequate chemical resistance—particularly against organic solvents. GPPS is also sensitive to ultraviolet radiation due to its susceptibility to optical oxidation.

GPPS is suitable for manufacturing intricate shapes, making it ideal for producing toys, figurines, various novelty items, large-sized and thin-walled automotive parts (e.g., dashboard panels), and transparent medical products such as syringes, vials and test tubes. Additionally, GPPS is used extensively for household items such as disposable cups, dishes, CD cases, picture frames, plastic cutlery, and lunch containers.

High Impact Polystyrene (HIPS)

High impact polystyrene (HIPS) is produced by incorporating rubber additives into general-purpose polystyrene (GPPS) to enhance its flexibility and impact resistance. HIPS is easy to process, highly customisable, complies with food-grade standards, and remains cost-effective.

The compound is rigid and displays good dimensional stability. Additionally, HIPS is fully recyclable, although the recycling process itself can be inefficient. Other disadvantages include high flammability and poor resistance to chemicals, particularly organic solvents.

HIPS is commonly used to manufacture point-of-purchase (POP) displays, signage, bike helmets, compact appliances, televisions, toys, bicycle components, and automotive parts such as instrument panels and gas tanks. In the food industry, it’s utilised in packaging including disposable trays, coffee cups, and yogurt containers. Additionally, HIPS is employed in printing, graphics, prototyping, and tooling applications.

Polyphthalamide (PPA)

Polyphthalamide (PPA) is a thermoplastic polymer known for its high heat resistance and is used in high-performance applications, often as a metal replacement.

Notable properties of PPA include high impact strength, good dimensional stability, extreme temperature resistance, low creep and moisture absorption, high stiffness, flame resistance, and fatigue resistance. It is also fully recyclable, adding to its appeal in modern manufacturing.

However, PPA requires high processing temperatures and specialised drying equipment, which can increase production complexity. It is also more expensive than many other plastics and is sensitive to certain chemicals, including acetic acid, formic acid, and mineral acids.

Thanks to its high strength-to-weight ratio, PPA is widely used in weight-sensitive industries like automotive and aerospace. In cars, it’s used for components such as pump wear rings, cutoff valves, thermostat housings, air coolers, and LED headlights. In aviation, applications include structural parts, wiring systems, fuel lines, bushings, and bearing pads. PPA is also employed in industrial, medical, and consumer applications, including high-temperature electrical connectors, gas supply lines, catheters, coffee machines, hot water pipelines, and bristles for toothbrushes and hairbrushes.

Polypropylene (PP)

Polypropylene (PP) is the second most widely used thermoplastic polymer globally and is identified by the resin identification code 5. This material retains its properties at elevated temperatures and high humidity, making it well-suited for demanding applications such as mooring ropes.

Key strengths of polypropylene include high tensile strength, high impact resistance, excellent water repellency, and resistance to environmental stress cracking. These properties can be further enhanced with additives. Additionally, polypropylene is 100% recyclable.

Despite its versatility, PP has several limitations, including flammability, UV degradation, embrittlement below -20 °C, a low upper service temperature (90–120 °C), poor paint adhesion, and susceptibility to scratches.

Because of its lightweight and adaptable nature, PP is used across industries including automotive, medical, textiles, construction, energy, and packaging. Typical products made from polypropylene include battery cases, bumpers, fender liners, medical lab equipment, carpets, piping, insulation wraps, siding, upholstery, and packaging materials.

Polybutylene Terephthalate (PBT)

Polybutylene terephthalate (PBT) is a strong and stiff thermoplastic polymer popular for its very good electrical properties.

PBT is durable, heat-resistant (up to 150 °C), and offers better impact resistance and a lower glass transition temperature than PET, despite their similar structures. It also shows strong resistance to solvents, oils, greases, and various chemicals, while providing protection against UV rays and chlorine.

However, PBT can be prone to warping due to stress imbalances and differential shrinkage, particularly in large or complex parts. It is also flammable, although it can be treated with flame retardants. PBT tends to be more expensive than alternatives like polyethylene (PE) or polypropylene (PP).

Thanks to its reliability in high-performance environments, PBT is commonly used in electrical circuits, such as housings, plug connectors, and fuse boxes. In the automotive sector, PBT is found in fuel system components, cowl vents, mirror housings, fans, connectors, and sensors. Its resistance to chlorine and UV makes it suitable for swimwear fabrics as well.

Polyethylene Terephthalate (PET or PETE)

PET is the most widely used plastic globally, especially for food and beverage containers. It’s also among the most recycled plastics due to an efficient and scalable recycling process. PET carries the resin identification code 1.

PET is transparent, strong, and flexible, with a high strength-to-weight ratio—the reason plastic bottles typically don’t crack when dropped. It has very low moisture absorption, excellent chemical resistance, and durability, making it ideal for packaging and storage.

However, PET has limitations such as poor heat tolerance, non-biodegradability, and susceptibility to oxidation.

Applications of PET include plastic bottles, food containers, housings, bags, clothing, components for electrical appliances, antimicrobial films, 3D printing filament, gas cylinder linings, and microfibre towels.

Polyvinyl Chloride (PVC)

Polyvinyl chloride, commonly known as PVC, is a thermoplastic polymer, ranked as the third most widely used plastic, following polypropylene (PP) and polyethylene terephthalate (PET). It’s identified by resin code 3.

It is naturally white and brittle. PVC exists in two forms: rigid and flexible. The flexible form is created by adding plasticisers such as phthalates. Key advantages of PVC include low cost, high density, excellent impact resistance, high tensile strength, and chemical resistance, particularly to alkalis.

However, PVC suffers from poor heat tolerance and releases toxic fume emissions when melted, making it difficult to recycle and non-biodegradable.

Rigid PVC is commonly used in construction, for piping, window frames, flooring, and safety helmets. Flexible PVC is more widely used and appears in plumbing, electrical insulation, and cable sheathing. Other applications include raincoats, credit cards, shoes, bicycles, refrigerator components, and inflatable products, thanks to its strength and ability to fold for compact storage.

To Sum It Up

Choosing the right materials for injection moulding projects is not just about meeting technical requirements; it’s also about aligning with production constraints, environmental factors, and end-use expectations. Each polymer offers a unique set of properties, from impact resistance and thermal stability to chemical compatibility and recyclability. And let’s not forget metal injection moulding, which adds another layer of complexity into the material selection process.

Whether it’s selecting ABS for durable consumer products, PET for food-grade packaging, or PPA for high-performance automotive parts, a well-informed decision can significantly improve product quality, reduce waste, and streamline manufacturing.

By understanding the characteristics and trade-offs of common injection moulding plastics, engineers and procurement professionals can make better choices that directly impact the success of their designs and production processes.

The post Common Plastics for Injection Moulding appeared first on Fractory.

In this guide, we break down the most important procurement metrics, explain how to track them, and show how they support better decision-making across the procurement function.

What Are Procurement KPIs?

Procurement key performance indicators (KPIs) are specific metrics used to evaluate the success and efficiency of procurement activities. These metrics help organisations measure how effectively they are managing procurement processes, including cost control, supplier relationships, operational efficiency, and risk management.

KPIs in procurement can range from basic metrics, like purchase order cycle time, to more strategic indicators, such as procurement ROI and supplier diversity. The primary goal of tracking KPIs is to transform procurement from a reactive function into a proactive, strategic business partner. By focusing on measurable outcomes, procurement teams can demonstrate their value in delivering cost savings, improving supplier performance, and enhancing overall business performance.

KPIs serve as a roadmap for improvement. They guide procurement leaders and teams by providing actionable insights into areas such as cost avoidance, supplier performance and contract compliance, ensuring that procurement objectives align with broader business goals.

Why Procurement KPIs Matter

The procurement department often manages a significant portion of a company’s operating costs. Without clear procurement metrics, it’s difficult to demonstrate value or identify areas for improvement. This is especially important for procurement professionals tasked with:

• Delivering cost reduction and cost avoidance

• Managing procurement investments effectively

• Ensuring contract compliance

• Improving procurement cycle times

• Enhancing supplier performance and availability

Strong procurement KPIs help procurement managers make informed decisions, manage risk, and align with wider business objectives. They also help to identify inefficiencies, reduce maverick spend, and support better vendor management.

Key Procurement KPIs You Should Be Tracking

Below are some of the most valuable procurement KPIs and metrics to monitor. These KPIs cover everything from cost management techniques to supply chain efficiency and supplier relationship management.

1. Cost Savings and Cost Avoidance

• Annual cost savings – Measures how much has been saved year-over-year through procurement-led initiatives such as renegotiations or sourcing alternatives.

• Cost avoidance – Refers to potential future expenses that are avoided, such as price increases that are mitigated through long-term contracts or strategic sourcing.

Why it matters: Cost-saving KPIs are central to procurement performance. They demonstrate procurement’s financial contribution to the business and validate the procurement strategy.

2. Purchase Order Cycle Time

This measures the time it takes from requisition to purchase order approval and dispatch.

Why it matters: A short purchase order cycle time increases procurement efficiency and improves stakeholder satisfaction. Long cycle times can delay projects and lead to emergency purchases.

3. Supplier Performance

• On-time delivery rate

• Quality incidents per supplier

• Lead time reliability

Why it matters: Supplier performance affects the entire supply chain. Poor delivery KPIs or low product quality can disrupt operations and increase procurement costs.

4. Contract Compliance Rate

This KPI tracks how often purchases are made in line with existing contracts.

Why it matters: High compliance reduces procurement spending leakage, improves cost predictability, and supports better vendor relationships. It also ensures procurement activities are aligned with negotiated terms.

5. Emergency Purchases

This tracks the number or percentage of purchases made on an ad-hoc basis without going through the usual procurement process.

Why it matters: Emergency purchases usually cost more and indicate weak procurement planning. Reducing them improves procurement efficiency and control over spend.

6. Procurement ROI

Procurement return on investment (ROI) measures the total financial return generated by the procurement function versus its operating costs.

Formula:

Procurement ROI = (Annual Cost Savings + Cost Avoidance) / Procurement Operating Costs

Why it matters: This is a key metric for procurement leaders to demonstrate the value of procurement investments and justify budget or headcount increases.

7. Vendor Availability and Reliability

• Vendor availability rate – Percentage of suppliers available and responsive when needed.

• Stockout incidents – Number of times supply chain disruptions occur due to vendor issues.

Why it matters: Supplier availability is crucial for continuity. A diverse and reliable vendor base ensures resilience, especially during market volatility.

8. Procure-to-Pay Cycle Efficiency

This end-to-end KPI covers everything from procurement request to invoice payment.

Why it matters: A streamlined procure-to-pay (P2P) cycle reduces administrative costs, improves cash flow, and supports better procurement management.

9. Procurement Cost as a % of Spend

This KPI shows the operational cost of the procurement function as a percentage of total procurement spend.

Why it matters: Tracking this helps identify whether the procurement team is operating efficiently and making the most of its resources.

10. Customer Satisfaction (Internal Stakeholders)

Survey scores and feedback from internal stakeholders can be used to assess procurement service levels.

Why it matters: A procurement team that delivers efficiently and supports internal needs earns trust and encourages policy compliance.

How to Track Procurement Metrics Effectively

Tracking procurement KPIs consistently requires the right tools and processes. Here’s what procurement managers should focus on:

Use Integrated Procurement Data Systems

Spreadsheets alone won’t cut it. Data should come from integrated tools such as:

• ERP systems

• Procure-to-pay platforms

• Spend analysis tools

• Supplier management software

Centralising procurement data ensures better accuracy and consistency across KPIs.

Set Baselines and Benchmarks

Every procurement KPI needs a baseline for comparison. Benchmarks can be set using historical performance, industry averages or internal goals.

Create Dashboards and Reports

Use visual dashboards to make KPIs easy to understand for stakeholders. Regular reports ensure accountability and support informed decision-making.

Review and Adjust KPIs Periodically

The procurement landscape changes. Supply chain disruptions, new regulations, and strategic shifts may require KPI adjustments. Regular reviews help ensure KPIs stay relevant.

How KPIs Support Procurement Strategy

Procurement KPIs are more than just operational metrics — they’re strategic enablers.

Well-defined KPIs help procurement leaders:

• Justify procurement decisions and investments

• Align procurement activities with company goals

• Improve supplier relationships through clear expectations

• Monitor procurement performance and identify underperforming areas

• Make informed decisions to reduce future costs and improve supply chain efficiency

They also support sustainable sourcing by tracking ESG metrics and social impact initiatives.

Common Challenges in Tracking Procurement KPIs

Despite their importance, many organisations struggle with procurement KPI tracking due to:

• Poor data quality – Incomplete or inaccurate procurement data leads to unreliable KPIs.

• Siloed systems – Data scattered across multiple platforms hinders tracking and analysis.

• Lack of clarity – KPIs must be clearly defined with ownership assigned for each one.

• Limited stakeholder buy-in – Procurement teams need cooperation from across the business to track certain metrics, such as internal customer satisfaction.

Overcoming these challenges requires investment in data systems, clear process ownership, and leadership support.

Best Practices for Procurement Professionals

To get the most out of procurement KPIs:

• Align KPIs with procurement strategy and business objectives.

• Choose a mix of metrics: financial, operational and relationship-based.

• Focus on a manageable number of high-impact KPIs.

• Automate data collection where possible.

• Share insights with stakeholders regularly.

• Foster a culture of continuous improvement using KPI trends.

Conclusion

Procurement KPIs are indispensable for any organisation seeking to improve procurement performance, control costs, and build resilient supplier relationships. These metrics not only help procurement teams track immediate goals like cost savings and supplier performance but also provide a strategic framework for long-term business success. From monitoring cost avoidance to ensuring contract compliance and driving supplier efficiency, KPIs play a pivotal role in aligning procurement with organisational objectives.

By selecting the right procurement metrics, using robust data tools, and embedding KPIs into everyday procurement activities, teams can demonstrate their impact, build stronger vendor partnerships, and continuously improve performance. Procurement is no longer just about securing the best price — it’s about creating long-term value through strategic decision-making, risk management, and ongoing optimisation.

The post Procurement KPIs Explained: How to Measure & Improve Procurement Performance appeared first on Fractory.

This article explores the evolving role of the Chief Procurement Officer (CPO), why CFOs should actively invest in effective collaboration with their procurement teams, and how this strategic partnership can deliver substantial, long-term financial benefits.

The Shift from Tactical to Strategic Procurement

Traditionally, procurement performance was primarily judged on cost savings and compliance. However, organisations that adopt a strategic approach to procurement are reaping significant rewards, including:

• Revenue Growth: Strong supplier relationships can lead to superior product quality, faster time-to-market, and enhanced service delivery, all contributing to top-line growth.

• Risk Management: Strategic procurement teams effectively mitigate supply chain challenges, regulatory risks, and geopolitical uncertainties, protecting the bottom line.

• Sustainability & ESG: Procurement plays a crucial role in sustainable sourcing, reducing environmental impact and ensuring compliance with evolving regulatory requirements.

• Operational Efficiency: Leveraging technology and process improvements streamlines operations, reduces manual effort, and frees up resources for more value-creating activities.

Linking Procurement to Overall Company Strategy

For the procurement process to be truly strategic, it must be seamlessly integrated with broader corporate objectives, such as revenue growth, sustainability, and market expansion. Strategic procurement activities should be intrinsically linked to wider company strategies. Companies that successfully integrate procurement into their corporate strategy gain a distinct competitive edge through:

• Proactive Cost Management: Instead of reactive cost-cutting measures, procurement teams collaborate with finance to strategically plan expenditure in line with business growth and profitability targets.

• Agility & Market Responsiveness: Procurement teams aligned with corporate strategy ensure that sourcing decisions are in sync with business expansion plans, mergers and acquisitions (M&A) activities, and new market entry.

• Sustainability & Brand Value: Increasingly, companies are leveraging procurement to achieve sustainability goals, ensuring ethical supply chains and compliance with ESG mandates, which enhances brand reputation and attracts socially conscious investors.

A prime example of business success with this strategic alignment is Rolls-Royce, which integrates procurement into its business strategy by focusing on supplier-driven innovation to enhance engine efficiency and reduce emissions. This approach supports both cost savings and sustainability objectives.

As procurement and the role of the CPO expand, CFOs must adapt their approach and view the procurement function as a key enabler of business objectives, rather than simply a cost centre there to save money.

The Role of Strategic Sourcing in Competitive Advantage

Strategic sourcing goes beyond negotiating lower prices—it’s about creating value through nurturing supplier relationships, effective category management, continuous improvement and long-term planning aligned with desired business outcomes. Companies that leverage strategic sourcing effectively benefit from:

• Supplier Innovation: Strong supplier partnerships foster co-development of new products, process improvements, and shared R&D investments.

• Cost Predictability: Long-term agreements and collaborative partnerships ensure stable pricing and supply continuity, reducing financial volatility and improving budget forecasting.

• Category Management Excellence: Businesses that adopt strategic procurement and category management can optimise procurement spend by focusing on supplier performance, demand forecasting, and total lifecycle costs.

A compelling example is Siemens, which has transformed procurement into a strategic function by using category management to optimise supplier selection and drive innovation across its engineering and manufacturing divisions. By embedding strategic sourcing into decision-making and closely aligning purchasing and finance departments, Siemens has increased efficiency while maintaining supplier resilience.

Why CFOs Should Invest in Procurement Teams

1. Enhancing Cost Efficiency Beyond Savings: While cost reduction remains important, procurement delivers greater value through Total Cost of Ownership (TCO) analysis, demand management, and supplier-driven innovation. Investing in procurement technology, analytics, and skills empowers finance leaders to make more informed spending decisions that go beyond short-term savings and cost avoidance.

2. Synergies and Co-Investment in Technology: CFOs play a critical role in ensuring that technology investments align with the overall financial strategy. Collaborating with CPOs to invest in the right technology solutions can drive greater efficiency, transparency and cost-effectiveness across the organisation. When procurement and finance teams co-invest in technology, such as procurement platforms, spend management reports, analytics tools, or supplier management systems, they create a unified approach to managing supplier relationships, monitoring spend and assessing risk.

By investing in shared technology infrastructure, both finance and procurement teams can optimise their supplier relationship management and negotiations, improve contract compliance, achieve cost savings, and streamline the sourcing process. This co-investment not only improves the bottom line but also enhances decision-making through integrated financial and procurement data. Technology solutions offering real-time analytics and reporting capabilities provide CFOs with deeper insights into supplier performance, cost drivers and opportunities for strategic partnerships, further driving business growth and profitability.

3. Data-Driven Decision Making: Modern procurement relies on real-time data and analytics to provide CFOs and finance teams with transparency across supplier spend, cash flow, contract performance, cost-saving opportunities, and market trends. Research consistently demonstrates that companies leveraging advanced procurement analytics achieve significantly higher cost savings than those relying on traditional methods. By integrating procurement insights with financial planning, finance teams can improve forecasting accuracy and capital allocation, ensuring resources are deployed effectively.

4. Strengthening Supply Chain Resilience: Recent global disruptions have underscored the critical importance of robust and resilient supply chains. Procurement teams play a key role in diversifying supplier bases, proactively managing risk, and ensuring business continuity, directly aligning with CFOs’ risk mitigation responsibilities.

5. Unlocking Supplier-Led Innovation: Strategic supplier relationships drive co-innovation, helping businesses differentiate their products and services in the marketplace. Procurement teams that collaborate closely with the finance department can prioritise investments in suppliers that deliver the greatest long-term value, rather than focusing solely on short-term cost reductions.

6. Aligning Procurement with ESG & Compliance Goals: CFOs are increasingly accountable for Environmental, Social, and Governance (ESG) reporting. Procurement ensures ethical sourcing, compliance with regulatory frameworks, and sustainable supply chains, mitigating the risk of financial and reputational damage. This shift also parallels the rise of social entrepreneurship, where business leaders build organisations with the primary goal of addressing community and social needs while maintaining financial sustainability.

Procurement’s Role in Financial Risk Management

Procurement is a key player in mitigating financial risks that impact a company’s bottom line. Key areas include:

• Supplier Insolvency Risk: Implementing robust supplier due diligence and financial health monitoring prevents costly disruptions.

• Geopolitical & Compliance Risk: Procurement teams navigate complex trade regulations and tariffs to maintain supply chain integrity and minimise exposure to geopolitical instability.

• Currency & Inflation Risk: Effective procurement strategies include hedging, long-term contracts and supplier diversification to mitigate currency fluctuations, manage cash flow and cost volatility.

Leading companies, such as Airbus, integrate procurement-led risk assessments into business operations to protect against supply chain volatility, ensuring stability across their global supplier base.

Case Study: How Procurement-Driven Strategy Transformed a Manufacturer’s Bottom Line

A mid-sized engineering firm faced rising material costs and supply chain disruptions. By aligning finance and procurement departments, adopting a category management approach, leveraging digital procurement tools to consolidate suppliers and negotiate long-term contracts.

The results were impressive:

• 20% cost reduction in critical materials through improved supplier collaboration.

• Significant supply chain risk reduction via dual sourcing strategies.

• Improved working capital management through optimised payment terms.

• Stronger ESG compliance with a strategic shift to sustainable sourcing.

This highlights how CFOs and procurement leaders working in synergy can drive substantial efficiency gains, strengthen resilience and boost profitability.

How CFOs Can Strengthen Procurement Alignment

• Invest in Technology: Tools like spend analytics, AI-driven sourcing, and contract lifecycle management improve decision-making and efficiency.

• Embed Procurement in Business Strategy: Involve procurement early in financial planning and corporate decision-making.

• Develop Talent & Skills: Upskilling procurement professionals and teams in financial acumen, negotiation and data analytics enhances their ability to contribute strategically.

• Measure Value Beyond Savings: Use procurement KPIs such as supplier performance, risk mitigation, innovation contributions, and sustainability impact.

Conclusion & Call to Action

With increased pressure surrounding financial responsibilities, CFOs cannot afford to overlook the value procurement brings. By investing and ensuring close collaboration between their procurement and finance functions, harbouring smooth collaboration with CPOs and shifting the mindset from cost-cutting to strategic investment, finance leaders can unlock new opportunities for efficiency, growth and resilience.

For companies looking to strengthen procurement’s impact, now is the time to assess existing capabilities, invest in talent and technology and foster closer collaboration between the finance and procurement teams. If you’re ready to explore how your procurement team can deliver strategic value, reach out to Fractory today to learn more.

The post Why CFOs Should Invest in Procurement: Aligning for Strategic Value appeared first on Fractory.

In this article, we will explore the fundamentals of metal injection moulding to better understand this remarkable process and its capabilities.

What Is Metal Injection Moulding?

Metal injection moulding is a type of injection moulding process in which metal powder, combined with binders to create a feedstock, is injected into moulds under pressure to form solid objects. These objects are then treated to remove the binder and strengthen the metal parts through processes such as sintering.

MIM’s ability to work with metals allows its components to outperform injection moulding plastics in key properties such as strength and durability.

For high-volume production of parts weighing less than 100 grams, metal injection moulding is often more feasible than processes such as machining, investment casting, and stamping. This method enables a high density of up to 99%, excellent surface finish, and the creation of complex geometries. Additionally, it accommodates features such as external and internal threads, thin walls (as small as 100 micrometres), profiled holes, and fine markings.

However, it also comes with certain limitations, including high initial investment and part size restrictions. Before we delve into those aspects, let’s first compare it with another similar process: die casting.

Metal Injection Moulding vs. Die Casting

Metal injection moulding and die casting share certain similarities but also differ in several key aspects. Both processes involve injecting a liquid feedstock into moulds, followed by solidification. However, in MIM, the feedstock consists of metal powder combined with binding agents such as wax and polypropylene, whereas die casting uses molten metal.

In both methods, high pressure is used to inject the material into moulds. MIM, however, offers several advantages, including higher precision, tighter tolerances, superior surface finishes, fewer design restrictions, lower scrap rates, and minimal post-processing. Additionally, MIM supports both ferrous and non-ferrous metals, while die casting is typically limited to non-ferrous alloys.

Die casting, on the other hand, has its own strengths. It is generally more suitable and cost-effective for larger components, offers longer mould life, and in some cases, allows the mould to be filled under gravity. It can also be faster than MIM in specific scenarios, as MIM requires additional steps, such as binder removal, before producing the final part.

MIM Applications

Most metals can be ground into powders, which can then be used in metal injection moulding (MIM). As a result, MIM is suitable for a wide range of metals. It is particularly effective for producing small parts (typically under 100 grams) intended for high-volume manufacturing. Stainless steel is one of the most commonly used metals in this process.

MIM is also highly efficient for fabricating components from expensive and specialised materials such as tungsten carbide, cobalt-chrome and titanium alloys. Common applications of metal injection moulding across various sectors include:

• Automotive – In the automotive industry, MIM is used to manufacture precision components such as turbocharger vanes, rocker arms, injector nozzles, shift levers, and various fittings and connectors.
• Aerospace – Aerospace applications often require specialised metals and alloy grades that are difficult to process using conventional methods. MIM is employed to produce critical engine parts, including turbine blades, nozzles, and combustion chambers. It is also used for airframe and avionics components such as latches, hinges, actuators, connectors, switches, sensors, and sealed fittings like cable glands.
• Agriculture – MIM has gained a foothold in the agricultural sector through parts like gears, bearings, and bushings used in equipment such as tractors. It is also applied in implements including nozzles, valves, couplings, harrow teeth, cultivator points, and ploughshares.
• Medical devices – MIM is capable of producing precise surgical instruments, implants, and diagnostic equipment for the medical field.
• Consumer products – The process is also used to manufacture highly durable and aesthetically pleasing consumer products, including mobile phones, watches, laptop hinges, and home appliances.

Metal Injection Moulding Process Steps

Metal Injection Moulding Process

The initial phase of the metal injection moulding (MIM) process closely resembles plastic injection moulding but includes additional steps to remove impurities and improve the quality of the final product. The full MIM process is typically divided into five distinct stages:

1. Blending Feedstock

Fine metal powder is blended with polymer binders, such as wax or polypropylene, to achieve a uniform consistency. The mixture is often granulated into pellets similar to those used in conventional plastic injection moulding, ensuring consistent flow during moulding. Additional controls are applied to preserve the characteristics and integrity of the metal powder throughout this stage.

2. Moulding

The granulated feedstock is fed into a hopper and transported to the injection unit, where it is melted and pressurised using heating elements and a reciprocating screw. The molten material is then injected into the die cavity. The moulded component, known as the “green part,” cools and solidifies within the mould before being ejected.

At this point, the green part is a solid piece composed of both metal powder and binder. The process can be adapted to fill multiple cavities in a single cycle for increased production efficiency.

3. Debinding

In this stage, the binder is removed from the green part using thermal, chemical, or catalytic processes, or a combination thereof. As the binder is eliminated, the component becomes porous. Since the binder typically comprises 30–45% of the green part’s volume, a comparable level of porosity is expected following debinding.

4. Sintering

To eliminate porosity and strengthen the part, the component undergoes sintering. During this phase, it is heated to near its melting point—for example, stainless steel (melting point 1,530 °C / 2,786 °F) is generally sintered at around 1,350–1,400 °C (2,462–2,552 °F), depending on the alloy.

The high temperatures cause the metal particles to diffuse across their boundaries, densifying the part. Some variations of the process apply mechanical pressure during sintering to further enhance densification.

Sintered MIM parts typically reach densities of 96–99% and demonstrate mechanical properties comparable to wrought materials produced through conventional metalworking. However, sintering also causes shrinkage, making parts significantly smaller than their original “green” size. This shrinkage is accounted for during the mould design phase to ensure dimensional accuracy.

5. Secondary Processing

After sintering, MIM components can be further enhanced through standard post-processing and heat treatment methods—similar to those used for traditionally manufactured metal parts. These may include annealing, carburising, nitriding, plating, passivation, and precipitation hardening, depending on the application requirements.

Advantages of Metal Injection Moulding

Metal injection moulding (MIM) has carved out a niche in manufacturing by enabling the cost-effective production of high-strength components using a wide range of metals. Below are its key advantages:

High density with smooth surface finish – MIM parts can achieve densities of up to 99%. Surface roughness can be minimised to below 1 micrometre Ra.

Excellent mechanical properties – MIM components offer superior mechanical characteristics, including high strength and durability, making them suitable for demanding and safety-critical applications.

Intricate geometries & fine features – MIM enables the production of intricate metal parts that are often unattainable through conventional methods. It supports detailed features such as profiled holes, thin walls, external and internal threads, as well as surface textures like knurling, engravings and markings. Tapping internal threads after moulding remains more precise and cost-effective than using unscrewing cores. The process also allows for easy embossing or debossing of fine details, including product codes, serial numbers and date stamps.

Wide range of metals supported – MIM is a highly versatile process that accommodates both common and specialised metals, including materials like tungsten carbide. This versatility allows manufacturers to tailor components for specific needs such as strength, wear resistance, durability, and corrosion resistance.

Reduced lead times – MIM integrates multiple operations into a single workflow, reducing production lead times. Additionally, part-to-part variation is minimal.

Low scrap, high material efficiency – MIM generates significantly less material waste compared to traditional methods like casting or machining. Its high material efficiency positions it as a green and sustainable manufacturing solution.

Disadvantages of Metal Injection Moulding

While metal injection moulding offers numerous advantages, it also has limitations that can make it unsuitable in certain contexts. It’s important to understand these constraints when considering MIM as a manufacturing method:

High initial investment costs – MIM involves high setup and tooling costs, making it less cost-effective for low-volume production. In such cases, alternative methods like CNC milling or turning may be more appropriate.

Size and weight limitations – The process is best suited for small components—typically under 100 grams. MIM is not efficient for producing larger parts.

Part shrinkage – As noted earlier, MIM parts shrink during the sintering stage. However, this shrinkage is predictable and can be compensated for during the mould design phase to ensure dimensional accuracy in the final product.

Conclusion

Metal injection moulding (MIM) has transformed the way manufacturers produce small, durable components across a variety of applications. By combining the design flexibility of plastic injection moulding with the strength of conventional metalworking techniques, MIM offers a precise and highly efficient manufacturing solution.

Its ability to process a broad range of metals, including titanium, tungsten carbide, and stainless steel alloys, makes it suitable for diverse industries, from aerospace and automotive to consumer goods.

Alongside these capabilities, MIM delivers other key advantages, such as excellent surface finishes, strong compatibility with mass production and exceptional material efficiency. These qualities position MIM as a distinct and valuable method in modern manufacturing. As processes and materials continue to advance, MIM is expected to play an increasingly significant role in high-performance engineering and production worldwide.

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