Title:
硬質被膜を備えた切削工具
Document Type and Number:
Japanese Patent JP7384620
Kind Code:
B2
Abstract:
To render more finer crystals of an Si-containing coat that is a second layer of a hard coat, for achieving improved hardness and durability.SOLUTION: A cutting tool has a hard coat 2 on a base material 1 of a cutting part. The hard coat 2 coating the base material 1 has a laminated structure of a multiple laminate layer 3 to be a first layer, a second layer 4 and a third layer 5. The multiple laminate layer 3, laid directly over the base material 1, has a plurality of first films 7 composed of thin layers TiSiN and a plurality of second films 8 composed of TiAlCrN alternately laid on top of each other. Furthermore, on the surface of the multiple laminate layer 3, the second layer 4 composed of TiSiN and the second layer 4 composed of TiAlCrN are laminated.SELECTED DRAWING: Figure 1
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Inventors:
Takamasa Endo
Hiroki Yoshida
Shinichiro Sato
Hiroki Yoshida
Shinichiro Sato
Application Number:
JP2019196576A
Publication Date:
November 21, 2023
Filing Date:
October 29, 2019
Export Citation:
Assignee:
Nisshin Tool Co., Ltd.
Nissin Engineering Co., Ltd.
seavac corporation
Nissin Engineering Co., Ltd.
seavac corporation
International Classes:
B23B27/14; B23C5/16; C23C14/06
Domestic Patent References:
| JP2017179580A | ||||
| JP2019025591A | ||||
| JP2014069258A |
Foreign References:
| CN105296949A |
Attorney, Agent or Firm:
田▲崎▼ 聡
Kenichi Kawabuchi
Shiro Suzuki
Mitsuyoshi Suzuki
Kenichi Kawabuchi
Shiro Suzuki
Mitsuyoshi Suzuki
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