Title:
SURFACE-COATED CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2022/196637
Kind Code:
A1
Abstract:
The present invention provides a coated tool, a substrate of which is a cBN sintered compact in which the average particle diameter of cBN particles is 2.5-6.0 µm and the content thereof is 40-70 vol%, a coating layer having an R of 0.1-1.5 µm and an average thickness of 1.0-5.0 µm has an A-layer, a B-layer, and a C-layer, the A-layer having an average composition of (Al1-xTix)N (0.35 ≤ x ≤ 0.60) and an average thickness tA of 0.1-1.0 µm, the B-layer having an average composition of (Al1-y-zTiySiz)N (0.35 ≤ y ≤ 0.60, 0.01 ≤ z ≤ 0.10) and an average thickness tB of 0.2-2.0 µm, the C-layer having an average composition of (Al1-a-b-cCraSibCuc)N (0.150 ≤ a ≤ 0.400, 0.050 ≤ b ≤ 0.200, 0.005 ≤ c ≤ 0.050) and an average thickness tC of 0.1-2.0 µm, tB/tA being 2.0-6.0, and R ≤ tC.
Inventors:
DOBASHI MASATAKA (JP)
Application Number:
PCT/JP2022/011322
Publication Date:
September 22, 2022
Filing Date:
March 14, 2022
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B27/14; B23B27/20; C23C14/06
Foreign References:
| JP2017080879A | 2017-05-18 | |||
| JP2016107396A | 2016-06-20 | |||
| JP2015110258A | 2015-06-18 | |||
| JP2009255282A | 2009-11-05 | |||
| JP2020151774A | 2020-09-24 | |||
| JP2021043485A | 2021-03-18 | |||
| JP5879664B2 | 2016-03-08 |
Attorney, Agent or Firm:
KIMURA Koichi et al. (JP)
Download PDF:
Previous Patent: GAS BARRIER FILM AND MANUFACTURING METHOD FOR GAS BARRIER FILM
Next Patent: SENSOR SYSTEM
Next Patent: SENSOR SYSTEM