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:
Apr. 30, 2024
Filed:
Apr. 08, 2016
Kirchhoff Automotive Deutschland Gmbh, Attendorn, DE;
Jan Stuhrmann, Drolshagen, DE;
KIRCHHOFF AUTOMOTIVE DEUTSCHLAND GMBH, Attendom, DE;
Abstract
The invention relates to a method for laser welding the end faces of the joints () of two connecting flanges (), which are held in an adjoining manner, of two connecting partners () made of a steel material. According to the method, in addition to being moved in the advancement direction, which follows the longitudinal extension of the joints (), the welding laser beam () is moved back and forth in an oscillating manner transversely to the advancement direction. At least one of the two connecting partners () to be welded at the connecting flange () joints () is equipped with a metal coating at least in the region of the respective connecting flange (). The weld pool produced by the energy input during the laser welding process is kept in a liquid state in order to allow degassing processes and/or distribution processes to be carried out in a controlled manner for phases of the metal coating of the at least one connecting partner, said metal coating being integrated by the welding process, wherein the welding laser beam is oscillated at a frequency of at least 80 Hz.