发明名称 |
Surface-coated cutting member |
摘要 |
A surface-coated cutting member includes a substrate, a metal layer vapor-deposited on a surface of the substrate and a hard coating vapor-deposited on the metal layer. The substrate is made of hard material selected from the group consisting of tungsten carbide-based cemented carbide, titanium carbo-nitride based cermet and high speed steel. The metal layer is made of metal selected from Group IVa of the Periodic Table and has an average thickness of 0.1 to 1 mu m. The hard coating has an average thickness of 1 to 9 mu m, and includes an inner layer of an average thickness of 0.2 to 4 mu m vapor-deposited on the metal layer, an intermediate layer of an average thickness of 0.2 to 4 mu m vapor-deposited on the inner layer and an outer layer of an average thickness of 0.2 to 3 mu m vapor-deposited on the intermediate layer. The inner layer is made of carbide or carbo-nitride of metal selected from Group IVa of the Periodic Table, and the intermediate layer is made of carbo-nitride of metal selected from Group IVa of the Periodic Table. The outer layer is made of nitride of metal selected from Group IVa of the Periodic Table.
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申请公布号 |
US4781989(A) |
申请公布日期 |
1988.11.01 |
申请号 |
US19870022278 |
申请日期 |
1987.03.05 |
申请人 |
MITSUBISHI KINZOKU KABUSHIKI KAISHA |
发明人 |
YOSHIMURA, HIRONORI;KATO, MUNENORI |
分类号 |
C23C14/06;C23C14/16;C23C28/00;C23C30/00;(IPC1-7):B22F7/02 |
主分类号 |
C23C14/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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