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:
Aug. 02, 2022
Filed:
May. 09, 2019
Trumpf Laser- Und Systemtechnik Gmbh, Ditzingen, DE;
Patrick Haug, Gerlingen, DE;
Nicolai Speker, Pleidelsheim, DE;
TRUMPF Laser- und Systemtechnik GmbH, Ditzingen, DE;
Abstract
The disclosure relates to methods and systems for deep welding a workpiece, a surface of the workpiece being irradiated by a first laser beam and a second laser beam. In a workpiece surface plane (OE) a first beam width Bof the first laser beam is larger than a second beam width Bof the second laser beam and in at least the workpiece surface plane (OE) the second laser beam lies inside the first laser beam. The intensity of the first laser beam alone is sufficient to produce a keyhole in the workpiece. The keyhole produced in the workpiece has a width KB in the workpiece surface plane (OE), KB substantially equaling B, and B≤0.75*KB. The methods and systems provide good seam quality, high penetration depth, and high welding speed.