Title:
SURFACE-COATED CUTTING TOOL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/181134
Kind Code:
A1
Abstract:
Provided is a surface-coated cutting tool including a base material and a coating that covers the base material, wherein: the coating contains a hard coating layer comprising domain regions and a matrix region; the domain regions are regions that are, in the matrix region, separated into a plurality of portions and that are present in a dispersed state; the domain regions each have 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 laminated together; 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 laminated together; the first AlTi compound has a cubic crystal structure, the second AlTi compound has a cubic crystal structure, the third AlTi compound has a cubic crystal structure, and the fourth AlTi compound has a cubic crystal structure; and x1 is 0.75-0.9, x2 is 0.48-0.59, x3 is 0.73-0.83, and x4 is 0.5-0.57.
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Inventors:
PASEUTH ANONGSACK (JP)
KIDO YASUKI (JP)
OKUNO SUSUMU (JP)
IMAMURA SHINYA (JP)
KIDO YASUKI (JP)
OKUNO SUSUMU (JP)
IMAMURA SHINYA (JP)
Application Number:
PCT/JP2018/048018
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 | |||
JP2018054714A | 2018-04-05 | |||
JP2015509858A | 2015-04-02 | |||
JP2017508632A | 2017-03-30 | |||
JP2016130343A | 2016-07-21 |
Other References:
KECKES, J. ET AL.: "Self-organized 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 3769872A4
See also references of EP 3769872A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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