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:
Feb. 25, 2020
Filed:
May. 31, 2017
Kennametal Inc., Latrobe, PA (US);
Vineet Kumar, Latrobe, PA (US);
Ronald Penich, Greensburg, PA (US);
Chen Chen, Latrobe, PA (US);
Zhenyu Liu, Greensburg, PA (US);
Nicholas F. Waggle, Jr., Derry, PA (US);
KENNAMETAL INC., Latrobe, PA (US);
Abstract
In one aspect, coatings are described herein employing composite architectures providing high aluminum content and high hardness for various cutting applications. For example, a coated cutting tool comprises a substrate and a coating comprising a refractory layer deposited by physical vapor deposition adhered to the substrate, the refractory layer comprising a plurality of sublayer groups, a sublayer group comprising a titanium aluminum nitride sublayer and an adjacent composite sublayer comprising alternating nanolayers of titanium silicon nitride and titanium aluminum nitride.