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. 26, 2013
Filed:
Jun. 21, 2011
Chang-kun Chun, Pohang, KR;
Woong-seong Chang, Pohang, KR;
Tae-sung Roh, Changwon-shi, KR;
In-gyu Park, Suwon-si, KR;
Chang-Kun Chun, Pohang, KR;
Woong-Seong Chang, Pohang, KR;
Tae-Sung Roh, Changwon-shi, KR;
In-Gyu Park, Suwon-si, KR;
Research Institute of Industrial Science & Technology, Pohang, KR;
Hyundai Rotem Company, Changwon-Si, KR;
Winxen Co., Ltd., Changwon-Si, KR;
Abstract
In the method for welding a hollow structure of the present invention, a rib is placed between a first joining member and a second joining member, and friction stir welding and fixing a place where the rib is placed between the first and the second joining member are conducted. Thus, friction stir welding is accomplished without changing the shape of an extrusion part or partly changing the shape of the extrusion part with insertion of a simply shaped rib.