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:
Jun. 28, 2022
Filed:
Jan. 04, 2020
Applicant:
Kennametal Inc., Latrobe, PA (US);
Inventor:
Zhenyu Liu, Latrobe, PA (US);
Assignee:
KENNAMETAL INC., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 16/40 (2006.01); C23C 28/04 (2006.01); C23C 16/36 (2006.01); C23C 16/32 (2006.01); C23C 16/34 (2006.01); B23C 5/16 (2006.01);
U.S. Cl.
CPC ...
C23C 28/044 (2013.01); B23C 5/16 (2013.01); C23C 16/32 (2013.01); C23C 16/34 (2013.01); C23C 16/36 (2013.01); C23C 16/403 (2013.01); C23C 16/405 (2013.01); C23C 28/042 (2013.01); B23C 2228/10 (2013.01);
Abstract
A coating includes a layer having an alumina matrix and at least one of zirconia grains and hafnia grains in the alumina matrix. An average grain size of the at least one of the zirconia grains and hafnia grains is 100 nm or less. A coated cutting tool includes a substrate and the coating bonded to the substrate. The substrate has a rake face, a flank face, and a cutting edge formed at the intersection of the rake face and the flank face.