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:
May. 29, 2018
Filed:
Nov. 11, 2015
Hyundai Motor Company, Seoul, KR;
Bong Lae Jo, Gyeonggi-Do, KR;
Hye Min Jo, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
A method of manufacturing a light rotor shaft for eco-friendly vehicles is provided which includes cutting a pipe material in a specified length to provide a pipe blank and forming the pipe blank to provide a first form having the first segment on a first side. The method further includes, forming a second form having the second segment by inserting and rotating a first side of a mandrel into the first side of the first form and concurrently hammer-forging the second side of the first form to form the second segment. The rotor shaft includes a third segment formed by inserting and rotating the second side of the mandrel into the first side of the second form to form the third segment.