Title:
SURFACE-COATED CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2023/136212
Kind Code:
A1
Abstract:
A surface-coated cutting tool wherein: 1) a coating layer includes a layer in which layer A and layer B are alternately laminated; 2) layer A is represented by Al1-aTiaN (0.30≤a≤0.70); 3) layer B is represented by Cr1-cM2cN (M2 is at least one of B and Si, 0.01≤c≤0.40 is satisfied); 4) the per-layer average thickness of each of layer A and layer B is 1-500 nm; 5) the average thickness of the layer in which layer A and layer B are alternately laminated is 0.3-7.0 μm; and 6) when the average thicknesses of layer A and layer B adjacent to each other are represented by TA and TB, respectively, 0.1≤TA/TB≤0.8 or 1.3≤TA/TB≤10.0 is satisfied.
Inventors:
SEKIZAWA SHOYA (JP)
Application Number:
PCT/JP2023/000161
Publication Date:
July 20, 2023
Filing Date:
January 06, 2023
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B27/14; C23C14/06
Domestic Patent References:
| WO2020026391A1 | 2020-02-06 |
Foreign References:
| JP2001328008A | 2001-11-27 | |||
| JP2007136653A | 2007-06-07 | |||
| JP2018202533A | 2018-12-27 | |||
| JP2002337004A | 2002-11-26 |
Attorney, Agent or Firm:
KIMURA Koichi et al. (JP)
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