Invention Grant
- Patent Title: Cutting tool
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Application No.: US17051463Application Date: 2020-02-27
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Publication No.: US11203068B2Publication Date: 2021-12-21
- Inventor: Yasuki Kido , Anongsack Paseuth , Susumu Okuno , Shinya Imamura
- Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.
- Applicant Address: JP Itami
- Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
- Current Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
- Current Assignee Address: JP Itami
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: JPJP2019-078674 20190417
- International Application: PCT/JP2020/008146 WO 20200227
- International Announcement: WO2020/213262 WO 20201022
- Main IPC: B23B27/14
- IPC: B23B27/14 ; B23C5/16 ; C23C16/34 ; C23C28/04

Abstract:
A cutting tool including a rake face, a flank face, and a cutting edge portion, comprising a substrate and an AlTiN layer, the AlTiN layer including cubic AlxTi1-xN crystal grains, A1 having an atomic ratio x of 0.7 or more and less than 0.95, the AlTiN layer including a central portion, the central portion at the rake face being occupied in area by (200) oriented AlxTi1-xN crystal grains at a ratio of 50% or more and less than 80%, the central portion at the cutting edge portion being occupied in area by (200) oriented AlxTi1-xN crystal grains at a ratio of 80% or more.
Public/Granted literature
- US20210069795A1 CUTTING TOOL Public/Granted day:2021-03-11
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