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, 2025
Filed:
May. 18, 2020
Applicant:
Sumitomo Electric Hardmetal Corp., Itami, JP;
Inventors:
Fumiyoshi Kobayashi, Itami, JP;
Susumu Okuno, Itami, JP;
Anongsack Paseuth, Itami, JP;
Shinya Imamura, Itami, JP;
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP., Itami, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01); B23C 5/16 (2006.01); C23C 16/36 (2006.01); C23C 16/40 (2006.01); C23C 28/04 (2006.01);
U.S. Cl.
CPC ...
B23B 27/14 (2013.01); B23C 5/16 (2013.01); C23C 16/36 (2013.01); C23C 16/402 (2013.01); C23C 28/042 (2013.01); C23C 28/044 (2013.01); B23B 2224/04 (2013.01); B23B 2224/32 (2013.01); B23C 2224/04 (2013.01); B23C 2224/32 (2013.01);
Abstract
A cutting tool including a rake face and a flank face includes: a substrate; and a coating film disposed on the substrate, wherein the coating film includes an AlOlayer, residual stress of the AlOlayer has a minimum value Rat at least a portion of a region dof the rake face, the minimum value Ris more than −0.27 GPa and less than or equal to −0.1 GPa.