Title:
SURFACE-COATED CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2011/077929
Kind Code:
A1
Abstract:
Disclosed is a surface-coated cutting tool in which the adhesion of a coating upon a base is high and which combines excellent heat resistance, excellent abrasion resistance, and excellent lubricity. The surface-coated cutting tool is provided with a substrate and a coating that has been formed upon said substrate, and is characterized in that: said coating is formed by means of the physical vapor deposition method and comprises one or more layers; at least one layer from among said one or more layers is a first coating layer; said first coating layer comprises Al and N, and has a thermal effusivity in the range of 2000 J/sec-1 m-1 K-1 to 5000 J/sec-1 m-1 K-1 and a coating thickness in the range of 0.2 μm to 5 μm; the first coating layer has an amorphous region and a crystalline region from the substrate side in this order; the amorphous region comprises an amorphous material and has a thickness in the range of 0.01 μm to 2 μm; and the crystalline region comprises a crystal structure that includes a hexagonal structure.
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Inventors:
KOIKE SACHIKO (JP)
IMAMURA SHINYA (JP)
YAMAGATA KAZUO (JP)
IMAMURA SHINYA (JP)
YAMAGATA KAZUO (JP)
Application Number:
PCT/JP2010/071705
Publication Date:
June 30, 2011
Filing Date:
December 03, 2010
Export Citation:
Assignee:
SUMITOMO ELEC HARDMETAL CORP (JP)
KOIKE SACHIKO (JP)
IMAMURA SHINYA (JP)
YAMAGATA KAZUO (JP)
KOIKE SACHIKO (JP)
IMAMURA SHINYA (JP)
YAMAGATA KAZUO (JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; C23C14/06
Foreign References:
| JP2006026783A | 2006-02-02 | |||
| JP2005271133A | 2005-10-06 | |||
| JP2005297143A | 2005-10-27 | |||
| JP2006026783A | 2006-02-02 | |||
| JP2005297142A | 2005-10-27 | |||
| JP2003039210A | 2003-02-12 |
Other References:
W. KALSS ET AL.: "Modern coatings in high performance cutting applications", INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, vol. 24, 2006, pages 399 - 404, XP028009772, DOI: doi:10.1016/j.ijrmhm.2005.11.005
"The Society of Materials Science", 1981, JAPAN, PUBLISHED BY YOKENDO CO., LTD., article "X-Sen Oryoku Sokuteiho (X-ray Stress Measurement Method"
See also references of EP 2517810A4
"The Society of Materials Science", 1981, JAPAN, PUBLISHED BY YOKENDO CO., LTD., article "X-Sen Oryoku Sokuteiho (X-ray Stress Measurement Method"
See also references of EP 2517810A4
Attorney, Agent or Firm:
NISHIMA, Hideaki et al. (JP)
Hideaki Futajima (JP)
Hideaki Futajima (JP)
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