发明申请
US20050089727A1 Surface-coated cutting tool member having hardcoating layer and method for forming hard coating layer on surface of cutting tool
有权
具有硬涂层的表面涂层切削工具构件和在切削工具的表面上形成硬涂层的方法
- 专利标题: Surface-coated cutting tool member having hardcoating layer and method for forming hard coating layer on surface of cutting tool
- 专利标题(中): 具有硬涂层的表面涂层切削工具构件和在切削工具的表面上形成硬涂层的方法
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申请号: US10503325申请日: 2003-01-30
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公开(公告)号: US20050089727A1公开(公告)日: 2005-04-28
- 发明人: Eiji Nakamura , Hidemitsu Takaoka , Yasuhiko Tashiro
- 申请人: Eiji Nakamura , Hidemitsu Takaoka , Yasuhiko Tashiro
- 申请人地址: JP Tokyo JP Akashi-shi
- 专利权人: Mitsubishi Materials Corporation,Mitsubishi Materials Kobe Tools Corporation
- 当前专利权人: Mitsubishi Materials Corporation,Mitsubishi Materials Kobe Tools Corporation
- 当前专利权人地址: JP Tokyo JP Akashi-shi
- 优先权: JP2002-23094 20020131; JP2002-27896 20020205; JP2002-60206 20020306; JP2002-60207 20020306
- 国际申请: PCT/JP03/00903 WO 20030130
- 主分类号: C23C14/06
- IPC分类号: C23C14/06 ; C23C14/34 ; C23C30/00 ; C23C14/32 ; B32B9/00 ; B32B15/04
摘要:
A surface-coated cutting tool member exhibiting a superior tool life due to a hard coating layer thereof is provided. The surface-coated cutting tool member includes a tungsten carbide based cemented carbide substrate, a titanium carbonitride based cermet substrate, or a cubic boron nitride based sintered substrate; and a hard coating layer of a nitride compound containing titanium and yttrium, which is formed on a surface of the substrate using a physical vapor deposition method in an overall average thickness of 1 to 15 μm. The hard coating layer has a component concentration profile in which maximum Y component containing points (minimum Ti component containing points) and points without Y component (TiN points) appear alternatingly and repeatedly at a predetermined interval in a direction of thickness of the hard coating layer, and the amount of contained Y component is continuously changed from the maximum Y component containing points to the points without Y component and from the points without Y component to the maximum Y component containing points, the maximum Y component containing points satisfy a composition formula of (Ti1-XYX)N (where X indicates an atomic ratio of 0.005 to 0.15), and a distance between one of the maximum Y component containing points and adjacent one of the points without Y component is from 0.01 to 0.1 μm.
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