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:
Jun. 14, 2022
Filed:
Mar. 19, 2018
Kirchhoff Automotive Deutschland Gmbh, Attendorn, DE;
Jan Stuhrmann, Drolshagen, DE;
Christian Dahmen, Rhode, DE;
KIRCHHOFF AUTOMOTIVE DEUTSCHLAND GMBH, Attendorn, DE;
Abstract
A method for laser welding the end faces of joints of two connecting flanges, which are held against each other, of two connecting partners made from a steel material, of which at least one is provided with a metallic coating with an evaporation temperature that is below the melting temperature of the steel material. The method is carried out such that, for the process of laser welding, the connecting flanges of the two connecting partners are held against each other enclosing an angle that opens pointing in a direction from the joint side on which the laser is applied, as a result of which a degassing gap, which increases in the direction of heat introduction, is provided between the connecting flanges, through which degassing gap evaporation products of the coating material resulting from the introduction of heat are carried off.