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:
May. 06, 2014
Filed:
Jun. 10, 2011
Yoshio Okada, Itami, JP;
Minoru Itoh, Itami, JP;
Hideaki Kanaoka, Itami, JP;
Chie Suzuki, Itami, JP;
Anongsack Paseuth, Itami, JP;
Yoshio Okada, Itami, JP;
Minoru Itoh, Itami, JP;
Hideaki Kanaoka, Itami, JP;
Chie Suzuki, Itami, JP;
Anongsack Paseuth, Itami, JP;
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Abstract
Wear resistance and chipping resistance are both highly established for a surface-coated cutting tool. The surface-coated cutting tool of the present invention includes a base material and a coat film formed on the base material. A first coat layer at a chamfer portion has residual stress that exhibits a minimal value at a depth A within 2 μm from the surface, and that is greater than or equal to −7 GPa and less than or equal to −1 GPa.