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:
Nov. 22, 2016
Filed:
Feb. 15, 2013
Sumitomo Electric Hardmetal Corp., Itami-shi, Hyogo, JP;
Kazuhiro Hirose, Itami, JP;
SUMITOMO ELECTRIC HARDMETAL CORP., Hyogo, JP;
Abstract
A cutting tool includes a substrate composed of a cermet. The cermet includes a hard phase including compounds containing Ti, at least one metal other than Ti selected from groups 4, 5, and 6 of the periodic table, and at least one element of carbon and nitrogen, a binder phase including, as a main component, an iron group metal, and unavoidable impurities. At least one type of particles selected from alumina particles and zirconia particles with an average particle size of 0.5 μm or more and 5 μm or less is scattered over a surface of a rake face of the substrate, and the concentration of at least one element of aluminum and zirconium in the surface is 0.5 at % or more and 5 at % or less.