公开(公告)号：US20230390829A1

公开(公告)日：2023-12-07

申请号：US18033408

申请日：2022-03-22

申请人： MOLDINO TOOL ENGINEERING, LTD.

发明人： Norihito Nasu ,  Tomoya Sasaki

IPC分类号： B23B27/14 ,  C23C28/04

CPC分类号： B23B27/14 ,  C23C28/044 ,  C23C28/042 ,  B23B2228/105

摘要： A coated cutting tool includes a substrate and a hard coating film. The hard coating film includes a b layer which is disposed on the substrate, a c layer which is a multilayer coating film laminated on the b layer and in which a c1 layer of a nitride or a carbonitride containing Al and Cr and a c2 layer of a nitride or a carbonitride containing Ti and Si are alternately laminated with a film thickness of 50 nm or less, respectively, and a d layer which is disposed on the c layer and is a nitride or a carbonitride of TiSi. The c layer contains 0.10 atomic % or less of Ar with respect to a total amount of a metal (including metalloid) element and a non-metal element.