Tungsten carbide is a compound composed of tungsten and carbon. Its hardness is similar to that of diamond. It is a good conductor of electricity and heat. If a small amount of metals such as titanium and cobalt are added, the brittleness can be reduced, and the toughness, strength and wear resistance can be improved. Cemented Carbide Insert is an alloy material made by powder metallurgy technology, mainly through pressing, sintering, grinding and coating processes. According to different actual needs, various coating treatments can be carried out on its surface. The reasons are as follows:
1.Thin layer coating on the surface of tungsten carbide by chemical or physical vapor deposition can make it have extremely high hardness and wear resistance without reducing its own toughness. Moreover, it can also reduce the friction between the tungsten carbide tool and the workpiece, significantly improve the processing efficiency and precision, and prolong the service life of the tool.
2.The coating has the function of protection and insulation. Since the thermal conductivity of the coating itself is much lower than that of the tungsten carbide substrate and the processing material, it can effectively reduce the heat generated by friction and form a thermal barrier, thereby reducing the thermal shock and force shock of the tungsten carbide tool and effectively improving the tungsten carbide tool. performance.
3.The coating can act as a chemical barrier and a thermal barrier to reduce the wear of tungsten carbide tools.
