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:
Sep. 14, 2021
Filed:
Sep. 30, 2019
University of Shanghai for Science and Technology, Shanghai, CN;
Shuwen Wang, Shanghai, CN;
Huan Zhang, Shanghai, CN;
Xuegang Zhang, Shanghai, CN;
Wang Guo, Shanghai, CN;
Deyu Zhao, Shanghai, CN;
UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGY, Shanghai, CN;
Abstract
The present invention discloses a vibration-damping and noise-reducing brake disc, where the vibration-damping and noise-reducing brake disc includes an intermediate disc having an outer side and a braking ring which surrounds the outer side of the intermediate disc. Two opposite surfaces of the braking ring are frictional surfaces provided with at least one laser scanning strip, where the laser scanning strip is obtained or formed by laser quenching and hardening treatments of the two frictional surfaces by a laser machine, for changing the physical and mechanical properties of the braking ring, such as the surface and inside hardness, residual stress distribution on the frictional surfaces, and the inside micro-structures of the braking ring, so as to suppress the generation of frictional vibration and noise during braking operations. The vibration-damping and noise-reducing brake disc of the present invention has stable coefficients of friction in braking operations, therefore, the occurrence of frictional noise and vibrations of the brake disc can be reduced, and the operational performance of the vehicle with such brake discs can be improved.