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. 02, 2015
Filed:
Jul. 05, 2011
Anongsack Paseuth, Itami, JP;
Minoru Itoh, Itami, JP;
Yoshio Okada, Itami, JP;
Hideaki Kanaoka, Itami, JP;
Chie Suzuki, Itami, JP;
Anongsack Paseuth, Itami, JP;
Minoru Itoh, Itami, JP;
Yoshio Okada, Itami, JP;
Hideaki Kanaoka, Itami, JP;
Chie Suzuki, Itami, JP;
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Abstract
A surface coated cutting tool with a high level of both wear resistance and defect resistance in balance is provided. The surface coated cutting tool of the present invention includes a base material, and a coat film formed on the base material. The coat film includes at least one titanium carbonitride layer. The titanium carbonitride layer has a maximum value for an orientational index TC (220) among texture coefficients TC (hkl). When an indentation hardness of a standard block for hardness is Hs and an indentation hardness of the titanium carbonitride layer is Ht, the average value of the relative hardness Ht/Hs for a plurality of times of measurement is greater than or equal to 3. The difference between the maximum value Ht/Hs and minimum value Ht/Hs of the relative hardness of the titanium carbonitride layer to the relative hardness Ht/Hs is less than or equal to 0.5.