Effects of Electromagnetic and Hydraulic Forming Processes on the Microstructure of the Material

Bach, F. W.; Kleiner, M.; Risch, D.; Walden, L.

Effects of Electromagnetic and Hydraulic Forming Processes on the Microstructure of the Material

dc.contributor.author	Bach, F. W.	de
dc.contributor.author	Kleiner, M.	de
dc.contributor.author	Risch, D.	de
dc.contributor.author	Walden, L.	de
dc.date.accessioned	2010-04-08T08:37:16Z
dc.date.available	2010-04-08T08:37:16Z
dc.date.issued	2004	de
dc.description.abstract	Over the past few years, various papers have been published in the field of high speed forming processes. The focus was mainly on the technological aspects of metal forming, however. Therefore, the present contribution puts an emphasis on transmission electron microscopy analyses. The present research work describes the effects of the two forming processes upon the aluminum microstructure and their influence on the material properties. The objective is to characterise the micro processes determining the plastic deformation with both forming velocities the electromagnetic high speed forming process with strain rates of 10,000 s^(-1) and the bulge test, having deformation rates of less than 0.1 s^(-1) as a quasistatic process. In this article sheet metals out of technical pure aluminum 99.5% with a thickness of 1 mm were investigated. To this end, sample specimens were taken from manufactured workpieces along the radius at various distances from the center. Because of the similarity of the forming paths, two places on the specimens manufactured at different forming rates were evaluated and compared to each other: immediately next to the blankholder and from the area of maximum strain. Metallographic tests of the structures, the sheet thickness, and the micro hardness distribution of the initial state and the formed sheet metals were executed in advance.	en
dc.identifier.uri	http://hdl.handle.net/2003/27050
dc.identifier.uri	http://dx.doi.org/10.17877/DE290R-12971
dc.language.iso	en	de
dc.publisher	Institut für Umformtechnik - Technische Universität Dortmund	de
dc.relation.ispartof	1st International Conference on High Speed Forming, March 31, April 1, 2004, Dortmund, Germany	de
dc.subject	bulge test	en
dc.subject	dislocation	en
dc.subject	electromagnetic sheet metal forming	en
dc.subject	microstructure	en
dc.subject.ddc	620	de
dc.subject.ddc	670	de
dc.title	Effects of Electromagnetic and Hydraulic Forming Processes on the Microstructure of the Material	en
dc.type	Text	de
dc.type.publicationtype	conferenceObject	de
dcterms.accessRights	open access

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