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SS PVD

SS PVD

PVD technology appeared in the preparation of thin films with high hardness, low friction coefficient, good wear resistance and chemical stability and other advantages.At first, the successful application in the field of high-speed steel tools has attracted great attention from the manufacturing industry all over the world. While developing the coating equipment with high performance and reliability, people have also carried out more in-depth coating application research in cemented carbide and ceramic tools.Compared with the CVD process, PVD process temperature is low, under 600 ℃ when the bending strength of cutting tool materials;The internal stress state of the film is compressive stress, which is more suitable for the coating of cemented carbide precision and complex cutting tools.PVD process has no adverse impact on the environment, in line with the development direction of modern green manufacturing.At present, PVD coating technology has been widely used in the coating treatment of carbide endmill, drill bit, step drill, oil hole drill, reamer, tap, indexable milling cutter, turning blade, special-shaped cutter, welding cutter and so on.

PVD technology not only improves the bonding strength between the film and the tool matrix material, but also develops the coating composition from the first generation TiN to the composite coating of TiC, TiCN, ZrN, CrN, MoS2, TiAlN, TiAlCN, tin-aln, CNx, DLC and ta-c.


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