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:
Apr. 28, 2009
Filed:
Jun. 24, 2004
Katsumi Okamura, Hyogo, JP;
Satoru Kukino, Hyogo, JP;
Michiko Matsukawa, Hyogo, JP;
Mitsuhiro Goto, Hyogo, JP;
Katsumi Okamura, Hyogo, JP;
Satoru Kukino, Hyogo, JP;
Michiko Matsukawa, Hyogo, JP;
Mitsuhiro Goto, Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
It is an object of the invention to provide a tool for precision finishing and grooving of quenched steel by thinning a coating film of a CBN sintered compact tool. The invention provides a surface-coated high hardness material for tool comprising a cubic boron nitride sintered compact (CBN sintered compact, hereinafter) as a substrate and at least one coating film layer formed on the surface of the substrate wherein said coating film layer has thickness of 0.1 μm or more and less than 1 μm and comprises, as main component, a compound having at least one kind of element selected from C, N and O, and Ti and Al. If this material is used as a grooving tool, excellent performance is exhibited. Examples of the coating film are an intermediate layer, a wear-resistant film, a surface layer and the like.