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Title:
SURFACE-COATED CUTTING TOOL AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/171653
Kind Code:
A1
Abstract:
This surface-coated cutting tool comprises a substrate and a coating layer which coats the substrate, the coating layer comprising alternating layers obtained by alternately laminating first unit layers and second unit layers 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 falls within the range of 0.65 to 0.95, inclusive. The second layers comprise nitrides containing titanium and silicon, and the ratio of the number of silicon atoms if the total number of atoms that constitute the second unit layers is defined as 1 is greater than 0 but no more than 0.20.

Inventors:
FUKUI HARUYO (JP)
SETOYAMA MAKOTO (JP)
TANAKA KEIZO (JP)
YOSHIMURA KOUHEI (JP)
Application Number:
JP2018/040255
Publication Date:
September 12, 2019
Filing Date:
October 30, 2018
Export Citation:
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Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP (JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06; C23C14/06
Domestic Patent References:
WO2006070730A12006-07-06
Foreign References:
JP2015512791A2015-04-30
JP2010247262A2010-11-04
JP2004042193A2004-02-12
JP2007191765A2007-08-02
JP2005028474A2005-02-03
JP2010180479A2010-08-19
JP2011212786A2011-10-27
JP2011167784A2011-09-01
JP2018040875A2018-03-15
JP2003034859A2003-02-07
Other References:
"The Society of Materials Science", 1981, YOKENDO CO., LTD., article "X-Ray Stress Measurement", pages: 54 - 66
MAKINO: "Journal of the High Temperature Society", vol. 33, March 2007, HIGH TEMPERATURE SOCIETY, article "Structural Control and Properties of Pseudobinary Nitride Hard Coatings", pages: 50 - 59
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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