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. 20, 2016
Filed:
Feb. 09, 2012
Rolf Larsson, Laxå, SE;
Rolf Larsson, Laxå, SE;
ESAB AB, Gothenburg, SE;
Abstract
Backing arrangement for supporting a welded seam extending on a curved path which is formed between two curved work pieces by friction stir welding with a welding tool separate from the backing arrangement, which backing arrangement comprises a backing body which is intended to bear upon the work pieces opposite said welding tool to assume at least a part of the compression force that is exerted by the welding tool against the work pieces to keep the material plasticized during the welding operation in the area of the welded seam The backing body is equipped with a shoulder which exhibits a bottom surface turned outward, via which the backing body is equipped to bear on the work pieces. A driving mechanism is situated to rotate and/or oscillate the shoulder so that the bottom surface of the shoulder can thereby be made to carry out a rotating and/or oscillating motion against the work pieces for creating fictional heat in them.