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:
Nov. 28, 2017
Filed:
Nov. 04, 2015
Hyundai Motor Company, Seoul, KR;
Min Gyun Chung, Seongnam-si, KR;
Yoon Cheol Kim, Suwon-si, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
Abstract
A drum in hat brake disc that includes a main braking part and a hat part coupled to the main braking part with a sprayed coating layer formed on a frictional surface of therein. And a manufacturing method includes the steps of casting a main braking part and seating the main braking part in a mold and injecting an aluminum alloy melt into the mold to form a hat part. The method also includes the steps of cooling the main braking part and the hat part and separating the mold to manufacture the drum in hat brake disk. The method includes polishing a surface of an inner diameter part of the hat part and performing a short blast process of the surface using alumina. The method also includes forming a sprayed coating layer on the inner diameter part subjected to the short blast process.