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:
Mar. 24, 2020
Filed:
Mar. 02, 2015
Applicant:
Valeo Equipements Electriques Moteur, Creteil, FR;
Inventors:
Assignee:
Valeo Equipements Electriques Moteur, Creteil, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21K 1/28 (2006.01); H02K 15/02 (2006.01); H02K 1/24 (2006.01); B21K 1/30 (2006.01);
U.S. Cl.
CPC ...
H02K 15/022 (2013.01); B21K 1/28 (2013.01); B21K 1/30 (2013.01); H02K 1/243 (2013.01);
Abstract
The method according to the invention involves a hot-forging step and a cold-forging step that occurs after the hot-forging step. A polar wheel () incorporating a plurality of finite chamfers () formed on exterior parts of the polar teeth () is produced during the hot-forging step. According to the invention, the cold-forging step involves substeps of placing the polar wheel in a die, cold die-stamping the polar wheel with a first and a second blow in the axial direction of the polar wheel, upsetting material onto interior parts of the polar teeth () so as to form magnet-housing grooves () and magnet lips ().