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;
09-27-2015
- 09-30-2015; 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.
Keywords:
laser welding, dissimilar materials, simulation model, intermetallic phases
Created from the Publication Database of the Vienna University of Technology.