Title:
SURFACE-COATED CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2023/190856
Kind Code:
A1
Abstract:
Provided is a surface-coated cutting tool comprising a plurality of identically-shaped cutting blade tips, wherein: a coating layer of each flank surface is (AlxTi1-x)(CyN1-y) (where the average content xavg of x is 0.60-0.95, and the average content yavg of y is 0.0000-0.0050); when the average value of the 200 diffracted ray intensity of crystal grains of a NaCl-type face-centered cubic structure in each flank surface is defined as I(200) and the standard deviation thereof is defined as σI(200), σI(200)/I(200) is 0.00-0.20; when the thickness of the coating layer on a line 100 μm away from each cutting blade tip ridge part in the flank surface direction is defined as Lm, the average value thereof is defined as Lavg, and the standard deviation thereof is defined as σL, σL/Lavg is 0.00-0.20; on each flank surface the coating layer includes a columnar crystal; there is a region where the content of Al and Ti changes; and the difference between the maximum value xmax and the minimum value xmin of x is 0.02-0.40.
Inventors:
YANAGISAWA KOSUKE (JP)
HOMMA HISASHI (JP)
HOMMA HISASHI (JP)
Application Number:
PCT/JP2023/013155
Publication Date:
October 05, 2023
Filing Date:
March 30, 2023
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B27/14; B23C5/16; C23C16/34; C23C16/36
Domestic Patent References:
| WO2022172954A1 | 2022-08-18 |
Foreign References:
| JP2021154415A | 2021-10-07 | |||
| JP2009083086A | 2009-04-23 |
Attorney, Agent or Firm:
KIMURA Koichi (JP)
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