Ball Pad Mold Electromagnetic Forming Process for Aluminium Alloy Sheet
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Date
2014
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Abstract
In order to meet requirements of lightweight technology in the field of aerospace, the new
forming technology for aluminium alloy skin parts and integral panel are brought to more
attention. Based on the principle of electromagnetic forming (EMF) and energy distribution,
a new electromagnetic forming process using ball as pad mold for aluminium alloy sheet
forming was suggested and test apparatus was designed. The new method was verified
by the finite element simulation and experimental technology, and all studies were carried
out on 2024-T3 aluminium alloy sheet. The results show that the new process of ball pad
mold electromagnetic forming is feasible to aluminium alloy sheet parts forming. Rubber
cushion thickness and electromagnetic pulse voltage are significant contributors to the
curvature radius of the test sample. Based on these observations, application advantages
and prospects of this new process were pointed out, and the subsequent research was
put forward.
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Keywords
aluminium alloy, ball pad mold, electromagnetic forming, sheet metal