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Optimization of laser welding of DP/TRIP steel sheets using statistical approach

  • Generally, the quality of a weld joint is directly influenced by the welding input parameter settings. Selection of proper process parameters is important to obtain the desired weld bead profile and quality. In this research work, numerical and graphical optimization techniques of the CO2 laser beam welding of dual phase (DP600)/transformation induced plasticity (TRIP700) steel sheets were carried out using response surface methodology (RSM) based on Box–Behnken design. The procedure was established to improve the weld quality, increase the productivity and minimize the total operation cost by considering the welding parameters range of laser power (2–2.2 kW), welding speed (40–50 mm/s) and focus position (−1 to 0 mm). It was found that, RSM can be considered as a powerful tool in experimental welding optimization, even when the experimenter does not have a model for the process. Strong, efficient and low cost weld joints could be achieved using the optimum welding conditions.

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Author:Uwe Reisgen, Markus Schleser, Oleg Mokrov, Essam Ahmed
ISSN:1879-2545 (E-Journal); 0030-3992 (Print); 0308-4280 (Print)
Parent Title (English):Optics and laser technology
Place of publication:Amsterdam
Document Type:Article
Year of Completion:2012
Date of the Publication (Server):2013/09/12
First Page:255
Last Page:262
Institutes:FH Aachen / Fachbereich Maschinenbau und Mechatronik
collections:Verlag / Elsevier