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. 03, 2015
Filed:
Dec. 05, 2011
Chikako Kojima, Itami, JP;
Yoshio Okada, Itami, JP;
Hideaki Kanaoka, Itami, JP;
Hiroyuki Morimoto, Itami, JP;
Anongsack Paseuth, Itami, JP;
Erika Iwai, Itami, JP;
Chikako Kojima, Itami, JP;
Yoshio Okada, Itami, JP;
Hideaki Kanaoka, Itami, JP;
Hiroyuki Morimoto, Itami, JP;
Anongsack Paseuth, Itami, JP;
Erika Iwai, Itami, JP;
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Abstract
A surface-coated cutting tool excellent in wear resistance is provided. The surface-coated cutting tool of the present invention includes a base material and a coating formed on the base material. The coating includes an inner layer and an outer layer. The inner layer is a single layer or a multilayer stack constituted of two or more layers made of at least one element selected from the group consisting of group IVa elements, group Va elements, group VIa elements in the periodic table, Al, and Si, or a compound of at least one element selected from this group and at least one element selected from the group consisting of carbon, nitrogen, oxygen, and boron. The outer layer includes α-aluminum oxide as a main component and exhibits an equivalent peak intensity PR(024) of a (024) plane of x-ray diffraction of larger than 1.3.