Invention Grant
- Patent Title: Coated cutting tool
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Application No.: US17435867Application Date: 2020-03-03
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Publication No.: US11666976B2Publication Date: 2023-06-06
- 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: JP 2019050327 2019.03.18
- International Application: PCT/JP2020/008846 2020.03.03
- International Announcement: WO2020/189256A 2020.09.24
- Date entered country: 2021-09-02
- Main IPC: B32B27/14
- IPC: B32B27/14 ; B23B27/14 ; B23C5/16 ; C23C14/06 ; C23C14/32 ; C23C28/04 ; C23C28/00

Abstract:
Provided is a coated cutting tool, which includes a hard coating film containing a layer (b) formed of a nitride or a carbonitride, a layer (c) which is a layered coating film formed by alternately layering a nitride or carbonitride layer (c1) that contains 55 atom % or more and 75 atom % or less of Al, Cr having a second highest content percentage, and at least Si and a nitride or carbonitride layer (c2) that contains 55 atom % or more and 75 atom % or less of Al and Ti having a second highest content percentage, each layer having a film thickness of 50 nm or less, and a layer (d) that is a nitride or carbonitride that contains, with respect to a total amount of metal elements (including metalloid elements), 55 atom % or more and 75 atom % or less of Al, Cr having a second highest content percentage.
Public/Granted literature
- US20220143711A1 COATED CUTTING TOOL Public/Granted day:2022-05-12
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