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Title:
SURFACE-COATED CUTTING TOOL AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/181135
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 hexagonal crystal structure, the second AlTi compound has a cubic crystal structure, the third AlTi compound has a hexagonal crystal structure, and the fourth AlTi compound has a cubic crystal structure; and x1 is 0.89-0.97, x2 is 0.5-0.61, x3 is 0.86-0.95, and x4 is 0.5-0.65.

Inventors:
PASEUTH, Anongsack (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
KIDO, Yasuki (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
OKUNO, Susumu (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
IMAMURA, Shinya (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
Application Number:
JP2018/048019
Publication Date:
September 26, 2019
Filing Date:
December 27, 2018
Export Citation:
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Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-shi Hyogo, 16, 〒6640016, JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06; C23C16/34
Foreign References:
JP2018504515A2018-02-15
JP2014133267A2014-07-24
JP2008545063A2008-12-11
JP2015124407A2015-07-06
JP2014210313A2014-11-13
Other References:
J. KECKES: "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, doi:10.1016/j.tsf.2013.08.001
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Festival Tower West, 2-4 Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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