Coil Development for Electromagnetic Corner Fill of AA 5754 Sheet

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dc.contributor.authorImbert, José
dc.contributor.authorWorswick, Michael
dc.date.accessioned2012-07-18T08:34:42Z
dc.date.available2012-07-18T08:34:42Z
dc.date.issued2012-07-18
dc.description.abstractElectromagnetic (EM) forming is a high-speed forming process that uses the forces induced on a conductive workpiece by a transient high frequency magnetic field to form the workpiece into a desired shape. It has been reported by several researchers that EM forming (EMF) increases the formability of hard-to-form aluminum alloy sheet under certain circumstances. EMF can be combined with conventional forming (e.g. stamping) operations to create a hybrid forming operation that exploits the strengths of each process. One such operation is the “corner fill” operation, which consists in pre-forming sheet using conventional forming and then using EMF to reduce the radii of different features on the part to values that could not be obtained with conventional forming. This paper describes the development of a coil used for a hybrid operation that consisted on pre-forming AA 5754 1 mm into a v-shape with a 20 mm outer radius and then reducing or “sharpening” the radius to 5 mm using EMF. The coil is one of the most important components of an EMF operation, since it is the means of delivering the energy to the workpiece. Coils are subjected to very high stresses and are typically the element of an EMF operation that will fail first. One successful and four unsuccessful coils designs are presented. The successful coil was a single loop design, with the section closest to the part narrowed to increase the current density. The simplicity of the shape was chosen for its current flow characteristics and for its structural strength.en
dc.identifier.urihttp://hdl.handle.net/2003/29532
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-4940
dc.language.isoende
dc.relation.ispartof5th International Conference on High Speed Forming, April 24th - 26th 2012, Dortmund, Germanyen
dc.subjectcoil requirementsen
dc.subjecthigh speed formingen
dc.subjecthybrid forming researchen
dc.subjectsuccessful coil designsen
dc.subjectunsuccessful coil designsen
dc.subject.ddc620
dc.subject.ddc670
dc.titleCoil Development for Electromagnetic Corner Fill of AA 5754 Sheeten
dc.typeTextde
dc.type.publicationtypeconferenceObjectde
dcterms.accessRightsopen access

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