发明授权
- 专利标题: Surface-coated cutting tool
- 专利标题(中): 表面切割工具
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申请号: US11665980申请日: 2005-10-24
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公开(公告)号: US08012611B2公开(公告)日: 2011-09-06
- 发明人: Yoshio Okada , Naoya Omori , Minoru Itoh , Norihiro Takanashi , Shinya Imamura , Susumu Okuno
- 申请人: Yoshio Okada , Naoya Omori , Minoru Itoh , Norihiro Takanashi , Shinya Imamura , Susumu Okuno
- 申请人地址: JP Hyogo
- 专利权人: Sumitomo Electric Hardmetal Corp.
- 当前专利权人: Sumitomo Electric Hardmetal Corp.
- 当前专利权人地址: JP Hyogo
- 代理机构: McDermott Will & Emery LLP
- 优先权: JP2004-316338 20041029
- 国际申请: PCT/JP2005/019476 WO 20051024
- 国际公布: WO2006/046498 WO 20060504
- 主分类号: B23B27/14
- IPC分类号: B23B27/14
摘要:
The present invention relates to a surface-coated cutting tool comprising a substrate and a coating formed on the substrate, the coating includes a first coating of TiCN and a second coating of α-type Al2O3, the first coating is located between the substrate and the aforementioned second coating, and the second coating has compressive stress S1 in an area A1 spreading from an insert ridge portion in the direction of a rake face and the direction of a flank face with distances of at least 0.5 mm respectively and has tensile stress S2 in an area A2 other than this area A1, while compressive stress S1 and tensile stress S2 are defined by the following expression (I): 400 MPa≦|S1−S2|≦3500 Mpa (I).
公开/授权文献
- US20070292670A1 Surface-Coated Cutting Tool 公开/授权日:2007-12-20
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