Wspólnotowy Serwis Informacyjny Badan i Rozwoju - CORDIS

FP5

EMF Streszczenie raportu

Project ID: G3RD-CT-2002-00798
Źródło dofinansowania: FP5-GROWTH
Kraj: France

Developed software and guidelines for simulation of electromagnetic forming processes

Electromagnetic forming requires the generation of a high and transient magnetic field using an appropriate electrical device bringing energy of about hundreds of kJ. This field is developed in the surrounding of the forming coil and the metallic object to be formed. Like any other forming process, a die might be necessary to give the workpiece the required final geometry. The high current pulse passing through the coil is producing eddy currents in the opposite direction to the process current that causes repulsive forces between the two components due to Lorentz forces. Modelling such a forming process requires to couple multiphysical phenomena.

The effect of temperature variations is generally considered negligible for the simulation of the stamping process. Indeed temperature effects are much localised. Eddy currents generate a high thermal power density in a very short time, so as heat transfer cannot affect the complete workpiece and is only softening a small region. The plastic work is distributed in the whole plastically deformed part of the component and does not need to be considered more than for classical stamping process.

ESI group s commercial finite element software solution is designed to model such a complex process. SYSMAGNA can especially solve the electromagnetic part. PAMSTAMP code, dedicated to the stamping process simulation, is chosen for the structural analysis. In order to realise 3D simulations, some developments where performed in these software.

Some examples of application like tube compression test and plates show that virtual testing is very efficient in order to optimize coil geometry or process parameters.

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Kontakt

Argiris KAMOULAKOS, (Scientific director)
Tel.: +33-1-49785824
Faks: +33-1-46877202
Adres e-mail
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