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:
May. 25, 2018
Applicant:
Shanghai Dianji University, Shanghai, CN;
Inventor:
Lei Li, Shanghai, CN;
Assignee:
Shanghai Dianji University, Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 15/00 (2006.01); B21K 1/04 (2006.01); B21H 1/12 (2006.01);
U.S. Cl.
CPC ...
B21K 1/04 (2013.01); B21H 1/12 (2013.01); B23P 15/003 (2013.01);
Abstract
A near-net shape forming method for fabricating the precise bearing ring forging is invented. The processing method is composed of following three procedures. (1) the precise ring-like billet with chamfer angle is manufactured by the machining method. (2) The billet is heated by the less oxidation or non-oxidation heating method before ring rolling. (3) The bearing ring forging integrating with the raceway is formed in one pass of the rolling process by the ring rolling method.