Talks and Poster Presentations (with Proceedings-Entry):

R. Gómez Vázquez, A. Otto, G. Liedl, R. Feichtenschlager, C. Stiglbrunner:
"Simulation of laser welding aluminum-to-steel";
Keynote Lecture: 11th International Seminar "Numerical Analysis of Weldability", Graz - Castle Seggau; 2015-09-27 - 2015-09-30; in: "Mathematical Modelling of Weld Phenomena 11", Verlag der Technischen Universität Graz, 11 (2016), ISBN: 978-3-85125-490-7; 99 - 108.

English abstract:
Currently one of the main problems in welding of dissimilar metals is the formation of intermetallic phases at the joining interface. In the case of aluminum-steel dissimilar joints the thickness of the intermetallic layer is a determining factor in predicting potential failures of the weld joint in service. With the aim of supporting further investigation of laser assisted welding of the respective and other dissimilar pairings a multi-physical simulation model has been developed. Along with the physics required for the simulation of other common laser manufacturing processes this model includes multi-species diffusion and a simple reaction model that take advantage of VOF formulation to reproduce the growth of the intermetallic layer. This paper shows an analysis of the dissimilar welding process of aluminum-steel joints making use of this new simulation tool as well as a comparison of the results with experimental data.

laser welding, dissimilar materials, simulation model, intermetallic phases

Created from the Publication Database of the Vienna University of Technology.