The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2010
Filed:
Sep. 09, 2005
Mats Ahlgren, Täby, SE;
Helen Blomqvist, Stockholm, SE;
Mats Ahlgren, Täby, SE;
Helen Blomqvist, Stockholm, SE;
Sandvik Intellectual Property AB, Sandviken, SE;
Abstract
The present invention relates to a coated cutting tool insert of cemented carbide with coating including at least one layer of TiAlN deposited by PVD-technique. The layer has x=0.4-0.6 with a compressive residual stress of >4-6 GPa and a thickness of 1.5-5, preferably 2.5-4 μm. Both the I(111) and I(200) are <7.5, preferably <5, times, the intensity average noise level. Good adhesion despite high compressive stress is obtained if the layer is deposited by cathodic arc evaporation technique at a bias in the range −90<U<−50V, preferably −80V<U<−60V.