Title:
SURFACE-COVERED CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/2006/064724
Kind Code:
A1
Abstract:
This invention relates to a surface-covered cutting tool (1) that comprises a base material (8) and a film (9) provided on the base material (8). The film (9) comprises a first film (10) formed of TiCN and a second film (11) formed of &agr -type Al2O3 and is characterized in that the first film (10) is located between the base material (8) and the second film (11) and has a tensile stress S1, the second film (11) has a compression stress S2, and the tensile stress S1 and the compression stress S2 are specified by formula (I). 400 MPa ≤ &Verbar S2 - S1&Verbar ≤ 3500 MPa ··· (I)
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Inventors:
Okada, Yoshio c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Omori, Naoya c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Itoh, Minoru c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Takanashi, Norihiro c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Imamura, Shinya c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Okuno, Susumu c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Omori, Naoya c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Itoh, Minoru c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Takanashi, Norihiro c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Imamura, Shinya c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Okuno, Susumu c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Application Number:
PCT/JP2005/022636
Publication Date:
June 22, 2006
Filing Date:
December 09, 2005
Export Citation:
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-shi Hyogo, 16, 66400, JP)
Okada, Yoshio c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Omori, Naoya c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Itoh, Minoru c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Takanashi, Norihiro c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Imamura, Shinya c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Okuno, Susumu c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Okada, Yoshio c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Omori, Naoya c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Itoh, Minoru c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Takanashi, Norihiro c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Imamura, Shinya c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
Okuno, Susumu c/o SUMITOMO ELECTRIC HARDMETAL CORP. (1-1 Koyakita 1-chome, Itami-sh, Hyogo 16, 66400, JP)
International Classes:
B23B27/14; B23B51/00; B23C5/16; C23C14/06
Attorney, Agent or Firm:
Fukami, Hisao (Fukami Patent Office, Nakanoshima Central Tower 22nd Floor, 2-7,
Nakanoshima 2-chome, Kita-k, Osaka-shi Osaka 05, 53000, JP)
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