Invention Grant
- Patent Title: Coated cutting tool
- Patent Title (中): 涂层切割工具
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Application No.: US11987958Application Date: 2007-12-06
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Publication No.: US08206812B2Publication Date: 2012-06-26
- Inventor: Torbjörn Selinder , Mats Ahlgren
- Applicant: Torbjörn Selinder , Mats Ahlgren
- Applicant Address: SE Sandviken
- Assignee: Sandvik Intellectual Property AB
- Current Assignee: Sandvik Intellectual Property AB
- Current Assignee Address: SE Sandviken
- Agency: Morgan, Lewis & Bockius LLP
- Priority: SE0602747 20061215; SE0700800 20070328
- Main IPC: B32B9/00
- IPC: B32B9/00

Abstract:
The present invention relates to a coated cutting tool for metal machining with a from about 2.0 to about 20 μm thick PVD coating, having both the wear resistance of a coating of homogeneous layers and the toughness of a multilayer coating, comprising a first (Mec1,Mec2)(C,N,O) layer where Mec1 is one or more of the elements in the transition metal group IV-VI, Al and Si and Mec2 is one of the elements in the transition metal group IV-VI from about 1.0 to about 4.5 μm thick, a second (Med1,Med2)(C,N) layer where Med1 is one or more of the elements in the transition metal group IV-VI, Al and Si and Med2 is one of the elements in the transition metal group IV-VI and Y, from about 0.5 to about 4.5 μm thick, and in between the first and the second layer, an (Mee1, Mee2)(C,N,O) layer where Mee1 is one or more of the elements in the transition metal group IV-VI, Al and Si and Mee2 is one of the elements in the transition metal group IV-VI and Y, from about 0.1 to about 1.0 μm thick, where the thickness of the in between layer is less than about 0.5 times the thickness of thinnest of the first and the second layer and the layers in between has a composition differing from the first and the second layer, and a method of making thereof.
Public/Granted literature
- US20080152882A1 Coated cutting tool Public/Granted day:2008-06-26
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