Tungsten Carbide Cutting Tools' Basic Knowledge

The material of manufacturing the tool must have high temperature hardness and wear resistance, the necessary bending strength, impact toughness and chemical inertness, for good process, usually when the hardness is high, wear resistance is also high; high bending strength is with impact toughness. However, the higher the hardness is, the lower the flexural strength and impact toughness are. Tungsten carbide is a widely used tool material. Tungsten carbide indexable inserts are now coated with titanium carbide by chemical vapor deposition of titanium nitride, alumina hard layer or composite hard layer. Developing physical vapor deposition method can be used for carbide tool.


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