Title:
SURFACE-COATED CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2021/085253
Kind Code:
A1
Abstract:
This surface-coated cutting tool includes a tool base body of a cBN sintered body, a lower layer α on a cutting edge surface of the tool base body, and an upper layer β thereon, the lower layer α being (Al1-xTix)N (0.40≤x≤0.60) and the upper layer β being (Al1-y-zTiyBz)N (0.40≤y≤0.60, 0.01≤z≤0.10), and is characterized in that: in the upper layer β, the concentration of the B component repeatedly changes, wherein the interval between the maximum values and minimum values of adjacent B components has an average interval of 1 to 100 nm, z
Inventors:
DOBASHI MASATAKA (JP)
Application Number:
PCT/JP2020/039466
Publication Date:
May 06, 2021
Filing Date:
October 20, 2020
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
B23B27/14; B23B27/20; C23C14/06
Foreign References:
| JP2015178171A | 2015-10-08 | |||
| JP2007030130A | 2007-02-08 | |||
| JP3416938B2 | 2003-06-16 | |||
| JPH08104583A | 1996-04-23 | |||
| JP2019195796A | 2019-11-14 | |||
| JPH0426756A | 1992-01-29 |
Other References:
"Materials in the Society of Materials Science, Japan", 1997, COMMITTEE ON X-RAY STUDY OF MECHANICAL BEHAVIOR, article "Standard of X-ray Stress Measurement"
YOKENDO: "X-ray Stress Measurement Method", 1990
ZAIRYO, FUNDAMENTALS AND RECENT DEVELOPMENT OF X-RAY STRESS MEASUREMENT, vol. 47, no. 11, 1998
See also references of EP 4052822A4
YOKENDO: "X-ray Stress Measurement Method", 1990
ZAIRYO, FUNDAMENTALS AND RECENT DEVELOPMENT OF X-RAY STRESS MEASUREMENT, vol. 47, no. 11, 1998
See also references of EP 4052822A4
Attorney, Agent or Firm:
KIMURA Koichi et al. (JP)
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