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Statistical modeling of laser welding of DP/TRIP steel sheets

  • In this research work, a statistical analysis of the CO2 laser beam welding of dual phase (DP600)/transformation induced plasticity (TRIP700) steel sheets was done using response surface methodology. The analysis considered the effect of laser power (2–2.2 kW), welding speed (40–50 mm/s) and focus position (−1 to 0 mm) on the heat input, the weld bead geometry, uniaxial tensile strength, formability limited dome height and welding operation cost. The experimental design was based on Box–Behnken design using linear and quadratic polynomial equations for predicting the mathematical models. The results indicate that the proposed models predict the responses adequately within the limits of welding parameters being used and the welding speed is the most significant parameter during the welding process.

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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:92
Last Page:101
Institutes:FH Aachen / Fachbereich Maschinenbau und Mechatronik
collections:Verlag / Elsevier