Coated Tungsten Carbide Insert Plastic Deformation Resistance (3)

As mentioned in the chemical vapor deposition method, the coatings of tungsten carbide insert could increase the plastic deformation resistance, but the tool properties like edge toughness is impaired.

Difficultly from CVD method, the coatings generated by physical vapor deposition are thinner, although the ability of protection against heat and plastic deformation is weak, they offers great edge integrity which in turn yields an desired protection against edge chipping.

Generally, it is quite difficult to simultaneously lever up all tungsten carbide insert properties as there are numerous properties of both the protective coating and tungsten carbide substrate and the combination.


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