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:
Jan. 07, 2014
Filed:
Mar. 28, 2011
Masahiro Waki, Satsumasendai, JP;
Mitsuru Hasegawa, Satsumasendai, JP;
Masahiro Waki, Satsumasendai, JP;
Mitsuru Hasegawa, Satsumasendai, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
A cutting tool having a high oxidation resistance, a high wear resistance and a good defect resistance. The cutting tool comprises a base body and a coating layer, the coating layer comprising TiAlM(CN), M being selected as at least one member selected from among Si, W, Nb, Mo, Ta, Hf, Cr, Zr and Y; and a, b, d and x satisfy the following requirements: 0.35≦a≦0.55, 0.3≦b≦0.6, 0≦d≦0.25, a+b+d=1 and 0≦x≦1. The Al content of a droplet on the coating layer of a cutting face is higher than the Al content of the composition of the coating layer, and the Ti content of a droplet on a flank face is higher than the Ti content of the composition of the coating layer.