- 专利标题: Multilayer-coated cutting tool
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申请号: US09903561申请日: 2001-07-13
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公开(公告)号: US06586122B2公开(公告)日: 2003-07-01
- 发明人: Takeshi Ishikawa , Nobuhiko Shima
- 申请人: Takeshi Ishikawa , Nobuhiko Shima
- 优先权: JP2000-213536 20000713
- 主分类号: B23B2714
- IPC分类号: B23B2714
摘要:
A multilayer-coated cutting tool comprising a cutting tool substrate, and a multilayer coating film comprising a first hard coating film formed on the substrate and a second hard coating film formed on the first hard coating film, the first hard coating film comprising one or more metallic elements selected from the group consisting of Ti, Al and Cr, and one or more non-metallic elements selected from the group consisting of N, B, C and O; and the second hard coating film comprising Si and one or more metallic elements selected from the group consisting of metallic elements of Groups 4a, 5a and 6a of the Periodic Table and Al, and one or more non-metallic elements selected from the group consisting of N, B, C and O; the second hard coating film being a composition-segregated polycrystalline film comprising a phase having a relatively high Si concentration and a phase having a relatively low Si concentration.
公开/授权文献
- US20020039670A1 Multilayer-coated cutting tool 公开/授权日:2002-04-04
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