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Title:
SURFACE-COATED CUTTING TOOL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/171648
Kind Code:
A1
Abstract:
This surface-coated cutting tool contains a substrate and a coating layer which covers the substrate, the coating layer containing first unit layers and second unit layers alternately laminated upon one another. The first unit layers comprise nitrides containing aluminum and zirconium, and in the first unit layers, the ratio of the number of zirconium atoms if the total number of atoms that constitute the first unit layers is defined as 1 is from 0.65 to 0.95, inclusive. The second unit layers comprise nitrides containing titanium and aluminum, and in the second unit layers, the ratio of aluminum atoms if the total number of metal atoms which constitute the second unit layers is defined as 1 is greater than 0.40 but not greater than 0.70.

Inventors:
FUKUI, Haruyo (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
SETOYAMA, Makoto (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
TANAKA, Keizo (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
YOSHIMURA, Kouhei (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
Application Number:
JP2018/038491
Publication Date:
September 12, 2019
Filing Date:
October 16, 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; C23C14/06
Foreign References:
JP2015512791A2015-04-30
JP2010247262A2010-11-04
JP2007191765A2007-08-02
JP2011212786A2011-10-27
JP2016211052A2016-12-15
JP2010180479A2010-08-19
JP2003034858A2003-02-07
JP2007007742A2007-01-18
JP2006281409A2006-10-19
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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