Invention Grant
- Patent Title: Coated cutting tool
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Application No.: US16643932Application Date: 2018-11-19
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Publication No.: US11052464B2Publication Date: 2021-07-06
- Inventor: Masakazu Isaka
- Applicant: MOLDINO Tool Engineering, Ltd.
- Applicant Address: JP Tokyo
- Assignee: MOLDINO Tool Engineering, Ltd.
- Current Assignee: MOLDINO Tool Engineering, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Locke Lord LLP
- Priority: JPJP2017-223099 20171120
- International Application: PCT/JP2018/042653 WO 20181119
- International Announcement: WO2019/098363 WO 20190523
- Main IPC: B23B27/14
- IPC: B23B27/14 ; B23C5/16 ; C23C14/06

Abstract:
Provided is a coated cutting tool, which includes a hard coating film containing a layer (c) which is a layered coating film made by alternately layering a nitride or carbonitride layer (c1) that contains, with respect to the total amount of metal elements (including metalloid elements), at least 55 atom % aluminum (Al), chromium (Cr) having the second highest content percentage, and at least silicon (Si), and a nitride or carbonitride layer (c2) that contains, with respect to the total amount of metal elements (including metalloid elements), at least 55 atom % aluminum (Al) and titanium (Ti) having the second highest content, each layer having a thickness of 50 nm or less. A peak intensity Ih ascribable to an hcp (010) plane of AlN in the layer (c) and the total peak intensity Is ascribable to other predetermined crystal phases satisfy a relationship of Ih×100/Is≤15.
Public/Granted literature
- US20200376567A1 COATED CUTTING TOOL Public/Granted day:2020-12-03
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