Title:
SURFACE COATED CUTTING TOOL AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/181136
Kind Code:
A1
Abstract:
A surface coated cutting tool including a substrate and a coating that coats the substrate, wherein the coating contains a hard coating layer comprising a domain region and a matrix region. The domain region is a region that exists in a state of being divided into a plurality of sections and dispersed in the matrix region. The domain region has a structure in which a first layer comprising a first Alx1Ti(1−x1) compound and a second layer comprising a second Alx2Ti(1−x2) compound are alternately layered. The matrix region has a structure in which a third layer comprising a third Alx3Ti(1−x3) compound and a fourth layer comprising a fourth Alx4Ti(1−x4) compound are alternately layered. The first AlTi compound has a hexagonal crystalline structure and the second AlTi compound has a cubic crystalline structure. The third AlTi compound has a cubic crystalline structure and the fourth AlTi compound has a cubic crystalline structure. The value of x1 is 0.9–0.95 inclusive, the value of x2 is 0.5–0.6 inclusive, the value of x3 is 0.75–0.85 inclusive, and the value of x4 is 0.5–0.6 inclusive.
Inventors:
KIDO YASUKI (JP)
PASEUTH ANONGSACK (JP)
OKUNO SUSUMU (JP)
IMAMURA SHINYA (JP)
PASEUTH ANONGSACK (JP)
OKUNO SUSUMU (JP)
IMAMURA SHINYA (JP)
Application Number:
PCT/JP2018/048020
Publication Date:
September 26, 2019
Filing Date:
December 27, 2018
Export Citation:
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP (JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06; C23C16/34
Foreign References:
| JP2018504515A | 2018-02-15 | |||
| JP2014133267A | 2014-07-24 | |||
| JP2008545063A | 2008-12-11 | |||
| JP2015124407A | 2015-07-06 | |||
| JP2014210313A | 2014-11-13 | |||
| JP2018054716A | 2018-04-05 | |||
| JP2015509858A | 2015-04-02 | |||
| JP2017508632A | 2017-03-30 | |||
| JP2016130343A | 2016-07-21 |
Other References:
J. KECKES: "Self-organozed periodic soft-hard nanolamellae in polycrystalline TiAIN thin films", THIN SOLID FILMS, vol. 545, 9 August 2013 (2013-08-09), pages 29 - 32, XP055636673
See also references of EP 3769869A4
See also references of EP 3769869A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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