Authors: Gafri, O.
Izhar, A.
Livshitz, Y.
Shribman, V.
Title: Magnetic Pulse Acceleration
Language (ISO): en
Abstract: The present work is dedicated to describing works in the spheres of simulation, calculation, and experimental results of acceleration by pulsed electromagnetic forces where strain rates of 10,000 - 50,000 s^(-1) are common. The goal is to design a multidisciplinary model that will overcome the shortcomings of normal simulation methods that solve the EM field and then apply the solution in a mechanical analysis. Improved numeric models for virtual simulation of magnetic pulse processes are detailed, along with the pulse-power equipment and a special measurement system developed to verify these models and to determine material property data. These measure both radial velocity and axial speed (collision-point progression) for tube forming and / or welding processes, while logging the pulse current and magnetic field. The results show good a correlation between test and multiphysics model and provide valuable new insights, as well as an extraction of critical parameters by way of a comparison between calculated and measured data for materials such as aluminum alloys, copper, and steel.
Subject Headings: electromagnetic forming
high speed testing methods
process modeling
verification
URI: http://hdl.handle.net/2003/27075
http://dx.doi.org/10.17877/DE290R-12942
Issue Date: 2006
Publisher: Institut für Umformtechnik - Technische Universität Dortmund
Is part of: 2nd international conference on high speed forming, March 20th - 21st, 2006, Dortmund, Germany
Appears in Collections:ICHSF 2006

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