Invention Grant
- Patent Title: Coated cutting tool
- Patent Title (中): 涂层切割工具
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Application No.: US12441215Application Date: 2007-09-07
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Publication No.: US08409733B2Publication Date: 2013-04-02
- Inventor: Björn Ljungberg
- Applicant: Björn Ljungberg
- 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: SE0601950 20060915
- International Application: PCT/EP2007/059376 WO 20070907
- International Announcement: WO2008/031768 WO 20080320
- Main IPC: B32B15/04
- IPC: B32B15/04 ; C23C14/00

Abstract:
The invention relates to a method of producing a cutting tool at least partly coated with an inner CVD coating and an outer PVD coating comprising the manufacturing steps of depositing the CVD coating, subjecting the CVD coating at least partly to an intensive wet-blasting operation, followed by depositing the PVD coating.The invention also relates to a coated cutting tool comprising a cemented carbide substrate of 5-14 wt-% Co, 0-8 wt-% cubic carbides of Ti, Ta or Nb or a combination thereof, and balance WC, said substrate being at least partly coated with a 4-14 μm thick coating comprising an inner CVD coating and an outer PVD coating wherein the CVD coating has compressive stresses.
Public/Granted literature
- US20100061812A1 COATED CUTTING TOOL Public/Granted day:2010-03-11
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