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;
- 2015-09-30; in: "Mathematical Modelling of Weld Phenomena 11",
Verlag der Technischen Universität Graz,
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.