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. 25, 2025
Filed:
Oct. 18, 2021
Kyocera Corporation, Kyoto, JP;
Ayano Negishi, Otsu, JP;
Ryoma Nomiyama, Satsumasendai, JP;
KYOCERA CORPORATION, Kyoto, JP;
Abstract
A cermet insert includes a first surface, a second surface, a cutting edge, a third surface located opposite to the first surface, and a through hole extending from the first surface to the third surface. An inner wall constituting the through hole has, at least in a center portion, a binder-phase-rich layer having a higher binder phase content than an interior of the base. A thickness Tof the binder-phase-rich layer at the center portion is larger than a thickness Tof the binder-phase-rich layer at an end portion. The thickness Tis 1 μm or more and 20 μm or less, the thickness Tis 0.2 μm or more and 6 μm or less. The first surface includes a chip breaker. An arithmetic mean roughness Ra of the chip breaker is 0.05 μm or less when a cut-off value is 0.08 mm.