Effect of Workpiece Motion on Forming Velocity in Electromagnetic Forming
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Date
2012-07-18
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Abstract
The effect of workpiece motion on the forming velocity is analysed by the finite element
method. To study the two factors of workpiece displacement and motional electromotive force,
a static model, an incomplete motional model and a complete motional model are created.
The incomplete motional model is simulated by the finite element software COMSOL, while
the complete motional model is simulated by another finite element software Flux. To ensure
the correctness of the model, the static model is created by both softwares. For the specific
system treated in this paper, the results show that when the workpiece velocity is below 100
m/s, the workpiece displacement has only a small effect on the forming velocity. But when the
workpiece velocity is above 200 m/s, the effect of the workpiece displacement on the forming
velocity must be taken into account in the finite element model of the electromagnetic forming
process.
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Keywords
electromagnetic sheet metal forming, finite element model, forming Velocity, workpiece displacement