Coated Cemented Carbide Tool Physical Vapor Deposition Coating Preparation

Coated cemented carbide tool production method of physical vapor deposition methods, it is to rely on physical processes, to achieve material atoms from the source material to the deposited coating controllable transfer process, is depositing a coating on the molecule, scale atoms. Compared with chemical vapor deposition coating techniques, physical vapor deposition coating techniques are physical vapor deposition techniques deposition temperature is low, can at 200 ~ 600 ℃ and other superhard TiN coating deposition below, it will not reduce the base material of the original flexural strength, between coating and substrate does not occur η phase, so no special carbide materials, wider range of applications; carbide coating coated tool having a fine structure, generated internally in the coating stress, anti-crack ability; coated surface is smooth, better than the chemical vapor deposition coating effectively prevents cross crack rake face, but also can reduce the friction coefficient; you can use the sharp edge of the tool as a matrix, this is very important advantages for high-speed cutting.