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. 08, 2022
Filed:
Jun. 13, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
David Yang, Shanghai, CN;
Wu Tao, Hubei, CN;
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A method of laser welding together two or more overlapping metal workpieces (, or) included in a welding region () of a workpiece stack-up () involves advancing a beam spot () of a laser beam () relative to a top surface () of the workpiece stack-up along a first weld path () in a first direction () to form an elongated melt puddle () and, then, advancing the beam spot () of the laser beam () along a second weld path () in a second direction () that is opposite of the first direction while the elongated melt puddle is still in a molten state. The first weld path and the second weld path overlap so that the beam spot of the laser beam is conveyed through the elongated melt puddle when the beam spot is advanced along the second weld path.