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Verbesserung der Schweißqualität beim elektromagnetischen Schweißen von Aluminium‐ und rostfreien Stahlblechen
Author(s) -
Khandaei M.,
Vahidshad Y.,
Ayaz M.
Publication year - 2020
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201900205
Subject(s) - weldability , materials science , welding , finite element method , taguchi methods , aluminium , metallurgy , microstructure , composite material , optical microscope , scanning electron microscope , structural engineering , engineering
Abstract In this paper, the electromagnetic welding of two dissimilar metals was simulated using LS‐Dyna software. Results of finite element simulations were used to obtain a high quality weld between the aluminum and stainless steel by the minimum discharge energy. The experiments were designed according to a Box‐Behnken response surface methodology to extract the regression models from the significant parameters of voltage, standoff distance and thickness of driver. Possibility of weld formation were predicted by using the weldability window of aluminum‐stainless steel. According to the results of analysis of variance, the quality of weld can be improved by applying the following values of parameters: voltage of 15 kV, standoff distance of 1.5 mm and driver thickness of 1 mm. The results of the finite element simulations were confirmed by conducting the electromagnetic welding at the optimal condition of parameters. In order to evaluate the quality of joints, the microstructure of weld interface was studied using the optical and scanning electron microscope.