DIAMOND-COATED TOOL

WIPO Patent Application WO/2011/018917

A1

Disclosed is a diamond-coated tool (10) wherein separation does not easily occur at the interface between a base (1) and a diamond layer (3). The diamond-coated tool (10) comprises the base (1) and the diamond layer (3) that covers the surface of the base (1), and is characterized in that the surface of the base (1) has an arithmetic average roughness (Ra) of 0.1-10 μm (inclusive) and an average length (RSm) of roughness curve elements of 1-100 μm (inclusive), and that the diamond layer (3) has a plurality of pores (2) which extend in the crystal growth direction from a portion that is in contact with the base (1).

YOSHIDA, Katsuhito (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
吉田　克仁 (〒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)
YOSHIDA, Shigeru (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
吉田　茂 (〒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)
SEKI, Yuichiro (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)

JP2010/059694

February 17, 2011

June 08, 2010

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SUMITOMO ELECTRIC INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
住友電気工業株式会社 (〒41 大阪府大阪市中央区北浜四丁目５番３３号 Osaka, 〒5410041, JP)
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)
YOSHIDA, Katsuhito (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)
吉田　克仁 (〒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)
YOSHIDA, Shigeru (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 〒6640016, JP)

C23C16/27; B23B27/14; B23B27/20; B23B51/00; B23C5/16

FUKAMI, Hisao et al. (Fukami Patent Office, p.c. Nakanoshima Central Tower, 2-7, Nakanoshima 2-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)

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