SURFACE-COATED CUTTING TOOL - SUMITOMO ELECTRIC HARDMETAL CORP.

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 (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
小池　さち子 (〒16 兵庫県伊丹市昆陽北一丁目１番１号　住友電工ハードメタル株式会社内 Hyogo, 〒6640016, JP)
IMAMURA, Shinya (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)

Application Number:

JP2010/071705

Publication Date:

June 30, 2011

Filing Date:

December 03, 2010

Export Citation:

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Assignee:

SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-shi Hyogo, 16, 〒6640016, JP)
住友電工ハードメタル株式会社 (〒16 兵庫県伊丹市昆陽北一丁目１番１号 Hyogo, 〒6640016, JP)
KOIKE, Sachiko (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
小池　さち子 (〒16 兵庫県伊丹市昆陽北一丁目１番１号　住友電工ハードメタル株式会社内 Hyogo, 〒6640016, JP)

International Classes:

B23B27/14; B23B51/00; B23C5/16; C23C14/06

Attorney, Agent or Firm:

NISHIMA, Hideaki et al. (1-3, Shimaya 1-chome, Konohana-ku, Osaka-sh, Osaka 24, 〒5540024, JP)

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