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:
Aug. 18, 2015
Filed:
Jul. 01, 2010
Applicants:
Björn Ljungberg, Enskede, SE;
Susanne Norgren, Huddinge, SE;
Inventors:
Björn Ljungberg, Enskede, SE;
Susanne Norgren, Huddinge, SE;
Assignee:
Sandvik Intellectual Property AB, Sandviken, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 19/00 (2006.01); C23C 28/00 (2006.01); C23C 30/00 (2006.01);
U.S. Cl.
CPC ...
C23C 28/00 (2013.01); C23C 30/005 (2013.01); B23B 2224/32 (2013.01); B23B 2228/105 (2013.01); Y10T 407/27 (2015.01);
Abstract
A coated cutting tool includes a coating and a substrate. The substrate is at least partly coated with a 4-10 μm thick coating comprising two adjacent Ti(C,N)-layers where the difference (Δ) between the residual stress state of the inner layer and the residual stress state of the outer layer is 1000 MPa≦Δ≦2500 MPa, on at least a part of the cutting edge and/or on at least a part of the rake face. A method to produce such a difference between the residual stress states is also disclosed.