Product Code: ICAL09_P148

The Effect of the Relative Location Of Laser Beam And Arc In Different Hybrid Welding Processes
Paul Kah, Lappeenranta University of Technology; Lappeerenta Finland
Antti Salminen, Lappeenranta University of Technology, Finland; Lappeenranta Finland
Jukka Martikainen, Lappeenranta University of Technology, Finland; Lappeenranta Finland
Presented at ICALEO 2009

Hybrid welding requires that several parameters be adjusted in order to reach high quality of welds. One of the main setup of hybrid welding is the order of the different power sources. The selection partly depends on what kind of results are desired in the weld joints, whether it is gap bridging, penetration depth, welding speed, melting efficiency, process stability, control of seam width, porosity reduction or weld appearance. In this paper we have studied how the placement of the different sources in laser hybrid welding influences the overall weld quality. The study is based on an analysis of the results of a variety of publications carried out by various research groups. The process is analyzed with regard to process parameters, the type and thickness of the base material, and power and beam quality together with the optical parameters of the laser system applied.

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