- Patent Title: Surface-coated cutting tool and method of manufacturing the same
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Application No.: US15102992Application Date: 2015-10-09
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Publication No.: US09849517B2Publication Date: 2017-12-26
- Inventor: Takanori Detani , Shinya Imamura , Hideaki Kanaoka , Anongsack Paseuth
- Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.
- Applicant Address: JP Itami-shi
- Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
- Current Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
- Current Assignee Address: JP Itami-shi
- Agency: Venable LLP
- Agent Michael A. Sartori; Miguel A. Lopez
- International Application: PCT/JP2015/078837 WO 20151009
- International Announcement: WO2017/061059 WO 20170413
- Main IPC: B23B27/14
- IPC: B23B27/14 ; B23P15/30 ; C23C16/30 ; C23C16/40

Abstract:
A surface-coated cutting tool includes a base material and a coating formed on the base material. The coating includes an α-Al2O3 layer containing a plurality of α-Al2O3 crystal grains. The α-Al2O3 layer includes: a first region made up of an edge ridgeline, a region A of a rake face, and a region B of a flank face; a second region which is a region of the rake face except for the region A and covered with the coating; and a third region which is a region of the flank face except for the region B. The α-Al2O3 layer satisfies a relation b−a>0.5, where a is an average value of a TC(006) in the first region in texture coefficient TC(hkl) and b is an average value of the TC(006) in the second region or the third region in texture coefficient TC(hkl).
Public/Granted literature
- US20170259345A1 SURFACE-COATED CUTTING TOOL AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2017-09-14
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