Invention Application
- Patent Title: SURFACE-COATED CUTTING TOOL
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Application No.: US15320914Application Date: 2016-06-21
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Publication No.: US20170268124A1Publication Date: 2017-09-21
- Inventor: Hideaki Kanaoka , Shinya Imamura , Anongsack Paseuth , Takanori Detani
- 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
- Priority: JPPCT/JP2015/078838 20151009
- International Application: PCT/JP2016/068421 WO 20160621
- Main IPC: C30B29/20
- IPC: C30B29/20 ; C23C16/36 ; C30B28/14 ; B23B27/14

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. The α-Al2O3 layer contains a plurality of α-Al2O3 crystal grains and a plurality of κ-Al2O3 crystal grains, and has a TC(006) of more than 5 in a texture coefficient TC(hkl). A ratio of Cκ to a sum of Cα and Cκ: [Cκ/(Cα+Cκ)×100](%) is 0.05 to 7%, where Cα is a total number of peak counts of the α-Al2O3 crystal grains obtained from measurement data of x-ray diffraction for the coating, and Cκ is a total number of peak counts of the κ-Al2O3 crystal grains obtained from the measurement data of the x-ray diffraction for the coating.
Public/Granted literature
- US09863064B2 Surface-coated cutting tool Public/Granted day:2018-01-09
Information query
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