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:
Aug. 19, 2025
Filed:
Dec. 19, 2019
Applicant:
Ab Sandvik Coromant, Sandviken, SE;
Inventors:
Susanne Norgren, Vastberga, SE;
Bartek Kaplan, Vastberga, SE;
Assignee:
AB Sandvik Coromant, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01); B22F 3/16 (2006.01); B22F 5/00 (2006.01); C23C 14/06 (2006.01); C23C 14/58 (2006.01); B22F 1/103 (2022.01);
U.S. Cl.
CPC ...
B23B 27/14 (2013.01); B22F 3/164 (2013.01); B22F 5/00 (2013.01); C23C 14/0635 (2013.01); C23C 14/5806 (2013.01); B22F 1/103 (2022.01); B22F 2003/166 (2013.01); B22F 2005/001 (2013.01); B22F 2302/10 (2013.01); B22F 2302/20 (2013.01); B22F 2999/00 (2013.01); B23B 2224/20 (2013.01); B23B 2224/28 (2013.01); B23B 2224/36 (2013.01);
Abstract
The present invention relates to a coated cutting tool including a Cr-containing cemented carbide substrate having WC, a binder phase and a gamma phase. The cemented carbide includes a gradient surface zone with a thickness of between 2 to 100 μm, which is binder phase enriched and depleted of gamma phase. The cemented carbide includes MCcarbides in an amount of between 0.5 to 7 area % measured in the bulk, where M is elements being Cr, W and at least one binder metal. The coated cutting inserts shows an improved edge line toughness.