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. 23, 2017
Filed:
Mar. 27, 2012
Manabu Saito, Tokyo, JP;
Tatsuo Nakahata, Tokyo, JP;
Hideharu Takahashi, Tokyo, JP;
Junji Tsuchiya, Tokyo, JP;
Masao Watanabe, Tokyo, JP;
Eiji Hashimoto, Chiba, JP;
Hirofumi Higashiwaki, Mie, JP;
Manabu Saito, Tokyo, JP;
Tatsuo Nakahata, Tokyo, JP;
Hideharu Takahashi, Tokyo, JP;
Junji Tsuchiya, Tokyo, JP;
Masao Watanabe, Tokyo, JP;
Eiji Hashimoto, Chiba, JP;
Hirofumi Higashiwaki, Mie, JP;
FUJI JUKOGYO KABUSHIKI KAISHA, Tokyo, JP;
MAKOTOLOY CO., LTD., Osaka, JP;
Abstract
Disclosed is a cutting tool, including: a cutting edge including a coating from a rake face to a flank face, and has a relief angle of not less than 15 degrees, a material of the coating having a higher wear resistance than a base material of the cutting edge, and during cutting of a work, an edge of the coating on the rake face at a top of the cutting edge is worn by friction with the work; with a progress of a wear inward in a radial direction, an edge of the coating on the flank face at the top of the cutting edge is removed by friction with the work to expose the base material thereunder; and the exposed base material is worn by friction with the work to retract the flank face inward in the radial direction.