Abstract
In recent years the pulse magnetic forming technology has gained an ever increasing attention, due to low energy consumption and the possibility of joining different metals. However, most of the applications were focused on forming of circumferential geometries. The possibility to form sheet metal plates opens a new field of applications for the pulse magnetic welding process, including the possibility of joining different metals by pulsed magnetic welding. The simulation tools and hardware evolving over the last years helped to develop new approaches in modeling the pulsed magnetic forming process. For modeling the discharge process an equivalent circuit is presented in this paper. The model is divided in a circuit part and a FEM model part. For validation, a comparison between simulated and measured results with respect to magnetic flux density and current is shown. Also, the dependence between energy balance and time discretization is shown for a sequential coupled simulation. Additionally a loose coupled explicit simulation of a pulsed magnetic welding process is presented.
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Uhlmann, E., Ziefle, A. Simulation approaches for pulse magnetic forming. Prod. Eng. Res. Devel. 5, 659–665 (2011). https://doi.org/10.1007/s11740-011-0340-z
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DOI: https://doi.org/10.1007/s11740-011-0340-z