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Title:
SURFACE-COATED CUTTING TOOL AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/158974
Kind Code:
A1
Abstract:
This surface-coated cutting tool includes a base material and a coating formed on the surface thereof, wherein: the coating includes one or more layers; at least one of the layers is an Al-rich layer that contains hard particles; the hard particles have a sodium chloride-type crystal structure and comprise a plurality of aggregated first unit phases and second unit phases that are interposed between the first unit phases; the first unit phases comprise a nitride or a carbonitride of AlxTi1-x; the atomic ratio x of Al in the first unit phases is 0.7-0.96; the second unit phases comprise a nitride or a carbonitride of AlyTi1- y; the atomic ratio y of Al in the second unit phases is not less than 0.5 but less than 0.7; and, when analyzed by an X-ray diffraction method from a direction normal to the surface of the coating, the Al-rich layer has a maximum peak in (200) plane.

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Inventors:
PASEUTH, Anongsack (776 Aza Naie, Naie-cho, Sorachi-gu, Hokkaido 04, 〒0790304, JP)
KIDO, Yasuki (776 Aza Naie, Naie-cho, Sorachi-gu, Hokkaido 04, 〒0790304, JP)
IMAMURA, Shinya (776 Aza Naie, Naie-cho, Sorachi-gu, Hokkaido 04, 〒0790304, JP)
KURAMOCHI, Koji (1-1, Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
Application Number:
JP2017/024935
Publication Date:
September 07, 2018
Filing Date:
July 07, 2017
Export Citation:
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Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-shi Hyogo, 16, 〒6640016, JP)
SUMITOMO ELECTRIC INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; B23D77/00; B23F21/00; B23G5/06; C23C16/34; C23C16/56
Foreign References:
JP2016130343A2016-07-21
JP2017037375A2017-02-16
JP2008545063A2008-12-11
JP2014129562A2014-07-10
Other References:
J. TODT ET AL.: "Al-rich cubic Al0.8Ti0.2N coating with self-organized nano-lamellar microstructure: Thermal and mechanical properties", SURFACE AND COATINGS TECHNOLOGY, vol. 291, 2016, pages 89 - 93, XP029493081
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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