Invention Grant
- Patent Title: Cutting tool
- Patent Title (中): 切割用具
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Application No.: US14234617Application Date: 2012-07-25
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Publication No.: US09085032B2Publication Date: 2015-07-21
- Inventor: Yoshiki Sakamoto , Masahiro Waki , Yaocan Zhu
- Applicant: Yoshiki Sakamoto , Masahiro Waki , Yaocan Zhu
- Applicant Address: JP Kyoto-shi, Kyoto
- Assignee: KYOCERA CORPORATION
- Current Assignee: KYOCERA CORPORATION
- Current Assignee Address: JP Kyoto-shi, Kyoto
- Priority: JP2011-162250 20110725
- International Application: PCT/JP2012/068793 WO 20120725
- International Announcement: WO2013/015302 WO 20130131
- Main IPC: B23B27/14
- IPC: B23B27/14 ; C23C30/00

Abstract:
A cutting tool including a base member and a coating layer. The base member includes a rake face and a flank face. The coating layer has a composition represented by a first chemical formula of CraM1-a(C1-xNx), wherein M represents at least one selected from Ti, Al, Si, W, Mo, Ta, Hf, Nb, Zr, and Y, 0.01≦a≦0.5, and 0≦x≦1. The coating layer is disposed on the base member and includes a cutting edge at an intersecting ridge line between the rake face and the flank face. The coating layer further comprises droplets thereon. An average composition of the droplets disposed on the rake face has a Cr content higher than the Cr content of the average composition of the droplets disposed on the flank face.
Public/Granted literature
- US20140271000A1 CUTTING TOOL Public/Granted day:2014-09-18
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