发明申请
- 专利标题: SURFACE-COATED CUTTING TOOL HAVING EXCELLENT CHIPPING RESISTANCE AND WEAR RESISTANCE
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申请号: US15529008申请日: 2015-11-27
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公开(公告)号: US20170266733A1公开(公告)日: 2017-09-21
- 发明人: Shun SATO , Masakuni TAKAHASHI
- 申请人: MITSUBISHI MATERIALS CORPORATION
- 申请人地址: JP Tokyo
- 专利权人: MITSUBISHI MATERIALS CORPORATION
- 当前专利权人: MITSUBISHI MATERIALS CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2014-239956 20141127; JP2015-229736 20151125
- 国际申请: PCT/JP2015/083407 WO 20151127
- 主分类号: B23B27/14
- IPC分类号: B23B27/14 ; C23C14/06 ; C04B35/5831 ; B23B27/20
摘要:
In a surface-coated cutting tool, an A layer made of an (Al1-xTix)N layer (0.35≦x≦0.6 by an atom ratio) and a B layer made of a (Al1-y-zTiySiz)N layer (0.35≦y≦0.6 and 0.01≦z≦0.1 by an atom ratio) are layered on a surface of a tool body in which at least a cutting edge is made of a cBN sintered body. A layer thickness ratio of the A layer and the B layer (tB/tA) is 2 to 5, an X-ray diffraction intensity ratio I(200)/I(111) as the entire hard coating layer is more than 3 and 12 or less, a full width at half maximum of a peak of I(200) is 0.3 to 1.0, the IA(200)/IA(111) of the A layer is 2 to 10, and a full width at half maximum of the peak of the IA(200) is 0.3 to 1.0.