Diamond Cutting Tools VS. Tungsten Carbide Cutting Tools,Which is Sharper?

  •  What is Diamond Coating and Characteristics of Diamond Coating.

Diamond coating tools are tools made of diamond,which is a mineral composed of pure carbon. Diamond is the hardest substance in nature, so it has many important industrial uses, such as fine grinding materials, high-hard cutting tools, various drill bits, and wire drawing dies. It is also used as a component of many precision instruments.

Diamond cutting tools have the advantages of extremely high hardness and wear resistance, low friction coefficient, high elastic modulus, high thermal conductivity, low thermal expansion coefficient, and low affinity with non-ferrous metals.

It can be used for precision processing of non-metallic hard and brittle materials such as graphite, high wear-resistant materials, composite materials, high-silicon aluminum alloys and other tough non-ferrous metal materials. There are many types of diamond tools with significant differences in performance. The structures, preparation methods and application fields of different types of diamond tools are quite different.

 

super hard metal carbide cutting tools

  • What is Tungsten Carbide Cutting Tools and Characteristics of Diamond Cutting Tools.

Tungsten Carbide cutting tools is make of tungsten carbide, which is a compound composed of tungsten and carbon, with a molecular formula of WC and a molecular weight of 195.85. It is a black hexagonal crystal with metallic luster and a hardness similar to diamond. It is a good conductor of electricity and heat. Tungsten carbide is insoluble in water, hydrochloric acid and sulfuric acid, but easily soluble in nitric acid-hydrofluoric acid mixed acid. Pure tungsten carbide is brittle. If a small amount of titanium, cobalt and other metals are added, the brittleness can be reduced. Tungsten carbide used as steel cutting tools is often added with titanium carbide, tantalum carbide or their mixture to improve blast resistance. Tungsten carbide is chemically stable. Tungsten carbide powder is used in cemented carbide production materials.

PDC cutter

  • Which is sharper? Diamond Cutting Tools or Tungsten Carbide Cutting Tools? 

Diamond cutting tool is a composite material made of diamond abrasives and metal bonding agents. Diamond has extremely high hardness and wear resistance, so diamond cutting tools have the advantages of wear resistance, high hardness, and high cutting efficiency. At the same time, diamond has poor thermal conductivity, which can easily cause the temperature of the cutting part to rise, thus affecting the cutting quality. diamond cutting tools are widely used in cutting and processing heavy-duty, super-hard materials, such as stone, ceramics, glass, optical fibers, etc. 

Tungsten carbide cutting tools are suitable for light cutting tasks, such as cutting steel pipes, metal sheets, plastic sheets, wood, rubber and other materials. Tungsten steel cutting tools have the advantages of stable cutting effect and high cutting quality, but they are prone to wear when cutting super-hard materials.


To sum up, there are obvious differences in the materials and uses of tungsten carbide cutting tools and diamond cutting tools. Choosing the right cutting tools can improve work efficiency and cutting quality, while also extending the service life of the cutting tools and reducing cutting costs.

 

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