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M. R. Kronthaler; S. Braunreuther; M. F. Zäh:
In: M. Schmidt, M. F. Zaeh, T. Graf und A. Ostendorf (Hg.): Laser in Manufacturing 2011. Proceedings of the Sixth International WLT Conference on Laser in Manufacturing, Bd. 1. 2 Bände. Munich: Elsevier, S. 208-214. Online verfügbar unter http://www.sciencedirect.com/science/article/pii/S1875389211001064. 2011.
The shortage of resources demands a consequent lightweight design with aluminium alloys. Process stability and a high seam
quality in welding processes of this material are difficult to achieve. Bifocal hybrid laser welding (BHLW) demonstrates how this
material can be welded reliably without defects. The used hybrid laser system consists of a Nd:YAG laser and a high power
diode laser (HPDL). This leads to a high welding penetration in combination with a high seam quality. This publication
demonstrates that the BHLW process is more than a coupled deep penetration welding (DPW) process with a heat conduction
welding (HCW) process. The synergetic effect is a better quality in the entire welding seam.