3D Impacts Modeling of the Magnetic Pulse Welding Process and Comparison to Experimental Data
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Date
2016-04-27
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Abstract
Magnetic Pulse Welding (MPW) is a solid state (cold) welding process known to present
several advantages. When properly designed, such an assembly is stronger than the
weakest base material even for multi-material joining. These high quality welds are due to
an almost inexistent Heat Affected Zone which is not the case with fusion welding
solutions. Another advantage is a welding time that is under a millisecond. In order to
define the MPW parameters (mainly geometry, current and frequency), recent
developments have made it possible to adapt welding windows from the Explosive Welding
(EXW) for use in MPW. Until now, these welding windows have been simulated only in 2D
geometries showing how the impact angle and the radial velocities progress in a welding
window. The aim of this paper is to present our most recent development, which builds on
this analysis to develop a 3D model in order to deal for example with local planar MPW.
Simulation results will be presented and then compared to experimental data for a multimaterial
join case.
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Keywords
magnetic pulse welding (MPW), welding windows, dynamic simulations