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. 11, 2020
Filed:
Nov. 27, 2015
Mitsubishi Materials Corporation, Tokyo, JP;
Shun Sato, Naka, JP;
Masakuni Takahashi, Naka, JP;
MITSUBISHI MATERIALS CORPORATION, Tokyo, JP;
Abstract
In a surface-coated cutting tool, an A layer made of an (AlTi)N layer (0.35≤x≤0.6 by an atom ratio) and a B layer made of a (AlTiSi)N layer (0.35≤y≤0.6 and 0.01≤z≤0.1 by an atom ratio) are layered on a surface of a tool body in which at least a cutting edge is made of a cBN sintered body. A layer thickness ratio of the A layer and the B layer (t/t) is 2 to 5, an X-ray diffraction intensity ratio I(200)/I(111) as the entire hard coating layer is more than 3 and 12 or less, a full width at half maximum of a peak of I(200) is 0.3 to 1.0, the I(200)/I(111) of the A layer is 2 to 10, and a full width at half maximum of the peak of the I(200) is 0.3 to 1.0.