Invention Grant
- Patent Title: Multilayered coated cutting tool
- Patent Title (中): 多层涂层切割工具
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Application No.: US12003337Application Date: 2007-12-21
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Publication No.: US08119262B2Publication Date: 2012-02-21
- Inventor: Maria Åstrand
- Applicant: Maria Åstrand
- 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: SE0602814 20061227
- Main IPC: B32B9/00
- IPC: B32B9/00

Abstract:
The present invention relates to a coated cutting tool wherein a substrate is coated with a thin, adherent, hard and wear resistant coating comprising a laminar, multilayered structure of alternating layers of metalnitrides, metalcarbides or metalcarbonitrides. In the coating the sequence of individual layer thicknesses has no repeat period but is essentially aperiodic throughout the entire multilayered structure. The average chemical composition of the coating was AlaTibSicCrd(CeN1−e) where a is greater than zero and less than about 0.5, preferably a is greater than about 0.05 and less than about 0.4, where b is greater than about 0.1 and less than about 0.9, preferably b is greater than about 0.3 and less than about 0.9, where c is greater than about 0.01 and less than about 0.17, preferably c is greater than about 0.02 and less than about 0.1, where d is greater than or equal to zero and less than about 0.06, and a+b+c+d=1, where e is greater than or equal to zero and less than about 1, preferably e is greater than or equal to zero and than about 0.2.
Public/Granted literature
- US20080166583A1 Multilayered coated cutting tool Public/Granted day:2008-07-10
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