Design and Testing of Coils for Pulsed Electromagnetic Forming

Golovashchenko, S.; Bessonov, N.; Davies, R.

Design and Testing of Coils for Pulsed Electromagnetic Forming

dc.contributor.author	Golovashchenko, S.	de
dc.contributor.author	Bessonov, N.	de
dc.contributor.author	Davies, R.	de
dc.date.accessioned	2010-04-08T12:52:52Z
dc.date.available	2010-04-08T12:52:52Z
dc.date.issued	2006	de
dc.description.abstract	Coil design influences the distribution of electromagnetic forces applied to both the blank and the coil. The required energy of the process is usually defined by deformation of the blank. However, the discharge also results in a significant amount of heat being generated and accumulating in the coil. Therefore, EMF process design involves working with three different problems: 1) propagation of an electromagnetic field through the coil-blank system and generation of pulsed electromagnetic pressure in specified areas, 2) high-rate deformation of the blank, and 3) heat accumulation and transfer through the coil with the cooling system. In the current work, propagation of an electromagnetic field in the coil, blank, die and surrounding air was defined using a consistent set of quasi stationary Maxwell equations applying a corresponding set of parameters for each media. Furthermore, a deformation of the blank driven by electromagnetic forces distributed through the volume of the blank was modeled using a solid mechanics equation of motion and the elastic plastic flow theory. During the discharge of capacitors the process was considered to be adiabatic due to the short duration of the pulse, so a heat transfer during the discharge time was neglected. The distribution of electric current density integrated during the discharge process defines the increase of temperature at every element of the coil. The distribution of temperature was calculated as a function of time using the energy conservation law.	en
dc.identifier.uri	http://hdl.handle.net/2003/27065
dc.identifier.uri	http://dx.doi.org/10.17877/DE290R-12928
dc.language.iso	en	de
dc.publisher	Institut für Umformtechnik - Technische Universität Dortmund	de
dc.relation.ispartof	2nd international conference on high speed forming, March 20th - 21st, 2006, Dortmund, Germany	de
dc.subject	cooling	en
dc.subject	electrical discharge	en
dc.subject	sheet metal forming	en
dc.subject	tool	en
dc.subject.ddc	620	de
dc.subject.ddc	670	de
dc.title	Design and Testing of Coils for Pulsed Electromagnetic Forming	en
dc.type	Text	de
dc.type.publicationtype	conferenceObject	de
dcterms.accessRights	open access

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