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:
Oct. 27, 2015
Filed:
Aug. 16, 2013
Applicant:
Kennametal Inc., Latrobe, PA (US);
Inventors:
Vineet Kumar, Latrobe, PA (US);
Ronald Penich, Greensburg, PA (US);
Peter Leicht, Latrobe, PA (US);
Yixiong Liu, Greensburg, PA (US);
Assignee:
KENNAMETAL INC., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 14/06 (2006.01); B26D 1/00 (2006.01); C23C 14/32 (2006.01);
U.S. Cl.
CPC ...
B26D 1/0006 (2013.01); C23C 14/0641 (2013.01); C23C 14/325 (2013.01); B26D 2001/002 (2013.01);
Abstract
In one aspect, coated cutting tools are described herein. In some embodiments, a coated cutting tool comprises a substrate and a refractory layer deposited by PVD adhered to the substrate, the refractory layer comprising MAlN wherein x≧0.4 and M is titanium, chromium or zirconium, the refractory layer having a thickness greater than 5 μm, hardness of at least 25 GPa and residual compressive stress less than 2.5 GPa.