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Diamond Coated Tools

Diamond Coated Tools

Introduction to Diamond Coated Tooling

Diamond coated tools provide enhanced wear resistance and increased tool life for machining a wide range of abrasive tough materials like aluminium and composites. Unlike PCD tools, which use solid diamond cutting edges, diamond-coated tools feature a thin diamond layer of particles deposited onto a carbide substrate, making them a more cost-effective alternative for certain applications. This coating is applied using a Chemical Vapor Deposition (CVD) process onto a tungsten carbide substrate. This creates a highly wear-resistant cutting surface while maintaining the strength and toughness of the underlying tool. The combination of diamond coating and tungsten carbide provides excellent performance in non-ferrous applications, particularly where abrasive materials rapidly wear conventional tooling.

While they don’t provide as long a tool life as Polycrystalline Diamond (PCD) tools, they still offer superior performance compared to uncoated solid carbide end mills and other solid tools. Diamond tooling is ideal for low to medium-volume production, offering a lower initial investment than PCD. However, for high-volume machining, polycrystalline Diamond compacts often provide a lower cost per part due to the extended tool life. Diamond coated tools are widely used in high precision machining, particularly in drilling operations, milling, routing, and finishing applications, where consistent performance, dimensional accuracy, and long tool life are critical.

Why would you choose Diamond Cutting Tools?

Diamond-coated tools offer a lower initial investment than PCD while providing greater wear resistance than carbide alloy. This makes them ideal for low to medium-volume machining, prototyping, or applications where PCD’s extended tool life isn’t essential. Diamond coated solid carbide end mills, drills, and diamond router bits provide significantly improved abrasion resistance compared to conventional tooling. This makes them particularly effective for abrasive composite machining, routing operations, and precision milling tasks requiring consistent performance.

However, while coated diamond tools have a cheaper upfront cost, their shorter lifespan means they typically result in a higher cost per part compared to PCD. For high-volume production, PCD Diamond End Mills and other diamond tipped tools often provide better long-term value. Diamond Coated tools are best suited for applications where abrasive non-metallic materials need abrasion resistance, but the cost of full PCD tools isn’t justifiable for the production scale. Processing costs and tooling cost must be factored into decision-making.

When should you choose Diamond Coated Tooling?

Diamond coated industrial tools are recommended when:

  • Machining abrasive non-ferrous materials
  • Performing precision milling, routing, or drilling operations
  • Using solid carbide end mills in abrasive material environments
  • Producing components requiring high precision machining
  • Reducing tool wear in finishing applications
  • Achieving longer tool life compared to conventional carbide tooling

These tools provide a cost-effective solution where PCD tooling may be unnecessary or uneconomical.

What would you use Diamond Coated as a tool for?

Diamond-coated tools are designed for machining applicable materials where abrasion resistance and edge retention are key. They are commonly used for:

Additional applications include graphite, ceramics, and silicon carbide, where diamond grinding tools and diamond coated cutting tools provide superior wear resistance and machining performance. These materials are highly abrasive and benefit significantly from diamond coated tungsten carbide tooling. These tools provide longer tool life than uncoated carbide, making them a cost-effective solution for composite applications. They offer a balance between performance and cost.

The advantages of diamond also contribute to a smoother finish and reduced wear on the tool. Technology for diamond coating plays a key role in these benefits. Diamond coated tools reduce friction, improve chip evacuation, and maintain cutting edge integrity, making them ideal for high precision machining and finishing applications requiring tight tolerances and high surface quality.

What industries are Diamond Coated Tools used in?

Diamond-coated industrial tools are widely used in industries that require high-performance tooling solutions for abrasive materials.

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Aerospace industries

Used for machining aluminium components, CFRP fuselage structures, and composite airframe parts, providing excellent wear resistance and precision. Diamond coated solid tools and PCD diamond end mills are commonly used in aerospace manufacturing to maintain accuracy, reduce tool wear, and improve productivity in critical machining operations.

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Industrial processes

These tools excel in high-abrasion processes where a smooth milling cutter is needed for grinding applications and milling operations. Diamond coated industrial tools and diamond grinding tools are widely used in industrial machining applications where extended tool life and consistent machining performance are required.

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Construction industry

Used in applications requiring high precision and durability for abrasive processes. Diamond router bits and diamond coated solid carbide end mills are commonly used when machining abrasive construction and composite materials.

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Automotive

Essential for machining lightweight aluminium engine components, electric vehicle battery housings, and composite parts. Ideal for low-volume production or prototype work where PCD tooling may not be necessary. Diamond coated end mills and diamond tipped tools are particularly effective for machining non-ferrous applications such as aluminium housings and composite structural components used in electric vehicle production.

Bespoke Diamond Coated Tooling Solutions

Exactaform specialises in both bespoke and standard diamond coated tools, delivering precision and durability for machining. We manufacture custom diamond tipped tools, diamond router bits, and diamond coated solid tools designed for specific machining requirements, including drilling operations, milling, and finishing applications. Our quality diamond cutting tools improve surface finish and efficiency. We also provide custom diamond cutting tools tailored to application requirements.

Why Choose Exactaform for Diamond Coated Tooling

With 45 years of expertise in diamond coated tools, Exactaform delivers high-performance Diamond Coated End Mills and tools for precision machining. Our diamond coated tungsten carbide tools are manufactured using advanced Chemical Vapor Deposition technology to ensure maximum durability, precision, and long tool life in demanding machining environments.

Our technical teams ensure accurate machining processes and accurate machine tool selection for superior results. We also help manufacturers reduce machine down time by providing durable tooling solutions.

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