Design and experimental validation of an electroplastic rolling charging device
To satisfy the efficient transmission and targeted action of high-energy pulsed current in electroplastic rolling,an electroplastic rolling charging device was proposed.ANSYS finite element analysis software was utilized to conduct simulation analysis on the current field and temperature field of the rollers and rolled pieces.Through multi-condition simulation with varying parameters,the effect of differ-ent parameters on current concentration at the contact interfaces between electrodes and rollers was studied,as well as rollers and rolled pieces,and the the effect of non-uniform current distribution zones in the plastic deformation zone of the rolled pieces,and the tempera-ture rise of both rollers and rolled pieces.Based on these,a two-roll electroplastic rolling experimental platform was established,taking AZ31 magnesium alloy plates as the object.It is verified that the occurrence of edge cracks of AZ31 magnesium alloy is effectively sup-pressed during the rolling process by the new charging scheme.Thereby the forming efficiency and quality of magnesium alloy plates are significantly enhanced.
electroplastic rollingcurrent fieldtemperature fieldfinite element method
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