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, 2020
Filed:
Aug. 25, 2017
Applicant:
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Inventors:
Assignee:
Sumitomo Electric Hardmetal Corp., Itami-shi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/20 (2006.01); B23C 5/16 (2006.01); B23P 15/46 (2006.01); B23D 77/00 (2006.01); B23K 26/352 (2014.01); B23B 27/14 (2006.01);
U.S. Cl.
CPC ...
B23B 27/20 (2013.01); B23B 27/143 (2013.01); B23C 5/165 (2013.01); B23D 77/006 (2013.01); B23K 26/355 (2018.08); B23P 15/46 (2013.01); B23B 2200/081 (2013.01); B23B 2200/121 (2013.01); B23B 2200/321 (2013.01); B23B 2200/323 (2013.01); B23B 2226/12 (2013.01); B23B 2226/125 (2013.01); B23B 2226/315 (2013.01); B23C 2200/121 (2013.01); B23C 2200/323 (2013.01); B23C 2226/12 (2013.01); B23C 2226/125 (2013.01); B23C 2226/315 (2013.01); B23D 2277/2435 (2013.01);
Abstract
A cutting tool according to an aspect of the present disclosure includes a cutting edge portion which contains at least one of cubic boron nitride and polycrystalline diamond. The cutting edge portion includes a flank face, a negative land contiguous to the flank face, and a cutting edge formed by a ridgeline between the flank face and the negative land. At least one of the negative land and the flank face is provided with a plurality of recesses and a projection. The projection is formed by arranging the edges of adjacent recesses in contact with each other.