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:
Feb. 01, 2022
Filed:
Feb. 09, 2017
GM Global Technology Operations Llc, Detroit, MI (US);
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
Abstract
A method for joining together metal workpiece (or) includes forming a laser weld joint () in a workpiece stack-up () that fusion welds two or more overlapping metal workpiece (oror) together. The laser weld joint () has an initial top surface (). Once the laser weld joint () is formed, the method calls for impinging the laser weld joint () with a laser beam () and moving the laser beam () along the initial joint () including the initial top surface (). The laser beam () is eventually removed from the laser weld joint () to allow the melted upper portion () of the joint () to resolidify and provide the laser weld joint () with a modified top surface () that is smoother than the initial top surface (). By providing the laser weld joint with a smoother modified top surface, residual stress concentration points are removed and the laser weld joint is less liable to damage seal strips.