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:
Mar. 31, 2020
Filed:
Nov. 30, 2016
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Satoshi Ono, Sorachi-gun, JP;
Shinya Imamura, Sorachi-gun, JP;
Takanori Detani, Sorachi-gun, JP;
Anongsack Paseuth, Sorachi-gun, JP;
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Abstract
A surface coated cutting tool having surfaces including a rake face and a flank face and a cutting edge defined by a boundary portion between the rake face and the flank face includes a substrate and a coating which covers the surfaces of the substrate, the coating having a TiAlN layer having an NaCl type crystal structure, and relation of 0.65<XR≤0.9, 0.65<XF≤0.9, 0.4≤XE≤0.7, XR−XE≥0.2, and XF−XE≥0.2 being satisfied, with a composition of the TiAlN layer in a cutting edge region located in the cutting edge being expressed as TiAlN, a composition thereof in a rake face region located in the rake face being expressed as TiAlN, and a composition thereof in a flank face region located in the flank face being expressed as TiAlN.