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. 18, 2011
Filed:
Nov. 30, 2006
Yoshikazu Okada, Toride, JP;
Takushi Saeki, Kashiwa, JP;
Hiroshi Ohmori, Shimotsuma, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
A surface-coated cutting insert includes an insert body having a substrate of tungsten carbide-based cemented carbide, titanium carbonitride-based cermet or ceramics, a base layer, an intermediate layer and an outermost layer, the base layer and the outermost layer are made of a single layer or two or more layers formed of carbides, nitrides, oxides, or borides of one selected from the group consisting of Group IVa metals, Group Va metals, Group VIa metals, aluminum and silicon, or complex compounds thereof, and the intermediate layer is formed of primarily AlO, the outermost layer is removed on part of the insert body surface including the flank face and a flank face-side cutting edge portion of the intersecting edge line region, with the outermost layer being left on part of the rake face inside a boundary with the intersecting edge line region. The method for manufacturing this surface-coated cutting insert includes: forming a cutting edge at the intersecting edge line region; coating the surface of the insert body with a base layer, an intermediate layer and an outermost layer; and then removing the outermost layer on part of the surface of the insert body including the flank face and a flank face-side cutting edge portion of the intersecting edge line region, but excluding part of the rake face inside a boundary with the intersecting edge line region.