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:
Feb. 06, 2007
Filed:
Feb. 17, 2004
Tsuyoshi Fukano, Sendai, JP;
Keiji Usami, Sendai, JP;
Hiroki Ishii, Sendai, JP;
Takahito Tanibuchi, Sendai, JP;
Tsuyoshi Fukano, Sendai, JP;
Keiji Usami, Sendai, JP;
Hiroki Ishii, Sendai, JP;
Takahito Tanibuchi, Sendai, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
The surface-coated memberis constituted by coating the surface of the base bodymade of such a material as cemented carbide or cermet, with the hard coating layerthat comprises at least one TiCN layerand the AlOlayerformed on the surface of the TiCN layerwherein the TiCN layeris constituted from stringer-like TiCN crystal grown in a direction perpendicular to the base bodyand mean crystal width wof the TiCN layeron the AlOlayerside is made larger than mean crystal width won the base bodyside. This surface-coated member, as a cutting tool, shows excellent breakage resistance and high wear resistance with a long service life, where strong adhesion force of the hard coating layer can be maintained without experiencing peel-off between the TiCN layer and the AlOlayer even in cutting operations under harsh cutting conditions, such as intermittent cutting operation where the cutting edge is subject to strong impact.