Title:
被覆切削工具
Document Type and Number:
Japanese Patent JP6876278
Kind Code:
B2
Abstract:
A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein the coating layer includes a predetermined lower layer, an intermediate layer comprising α-Al2O3, and an upper layer comprising TiCN; the lower layer, intermediate layer, and upper layer have predetermined average thicknesses; a condition represented by formula (1) [RSA≥40 (1)] is satisfied; the interface of the intermediate layer on the upper layer side has a kurtosis roughness (Sku) of more than 3.0; the interface of the intermediate layer on the upper layer side has a skewness roughness (Ssk) of less than 0; and a condition represented by formula (2) [RSB≥40 (2)] is satisfied.
Inventors:
Kinya Takahashi
Naoyuki Fukushima
Naoyuki Fukushima
Application Number:
JP2019091437A
Publication Date:
May 26, 2021
Filing Date:
May 14, 2019
Export Citation:
Assignee:
Tungaloy Co., Ltd.
International Classes:
B23B27/14; C23C16/32; C23C16/34; C23C16/36; C23C16/40
Domestic Patent References:
| JP201998430A | ||||
| JP2012196726A | ||||
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Foreign References:
| WO2017037796A1 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito
Toshifumi Onuki
Akihiko Eguchi
Kazuhiko Naito