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1. (WO2017150550) SURFACE-COATED CUTTING TOOL

Pub. No.:    WO/2017/150550    International Application No.:    PCT/JP2017/007880
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: B23B 27/14
B23B 51/00
B23C 5/16
C23C 14/06
B23F 21/00
Applicants: MITSUBISHI MATERIALS CORPORATION
三菱マテリアル株式会社
Inventors: SATO Shun
佐藤 峻
OGAMI Tsuyoshi
大上 強
TANAKA Koichi
田中 耕一
HASHIMOTO Tatsuo
橋本 達生
ICHIMIYA Natsuki
一宮 夏樹
Title: SURFACE-COATED CUTTING TOOL
Abstract:
According to the present invention, the surface of a tool base is provided with at least a (Al1-a-b-cCraSibCuc)N layer (wherein 0.15≤a≤0.40, 0.05≤b≤0.20, and 0.005≤c≤0.05). In the layer: the concentration of Cr or the concentrations of Cr and Cu cyclically change in the layer thickness direction; the concentration Crmax of Cr at the maximum content point is within a range of a