A novel formability test method for electro-magnetic forming of aluminium sheet

R. S. Lee, T. C. Cheng, F. W. Luo, C. J. Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This study develops an EMF formability testing process, for investigating the forming limit of aluminium sheet, at high strain rates up to 5000 s -1 Changes in the hole size and the distance between these two holes, In a sheet blank, can generate different strain paths, at high strain rates. By plotting the different simulated strain paths and limit strains, measured using the proposed formability test method, the forming limit diagram, at high strain rates, was obtained. This Is useful in the prediction and prevention of fracture. The EMF experiment involved propelling an aluminium alloy AI5052-H32 sheet of 0.5 mm thickness at a punch, using a flat spiral electromagnetic coil. The finite- element software, LS-DYNA, was used for simulating the formablllty test process, for various strain paths. The experimental results of limit strains agreed well with the simulated results.

Original languageEnglish
Title of host publicationSpecial Edition
Subtitle of host publication10th International Conference on Technology of Plasticity, ICTP 2011
Pages1042-1047
Number of pages6
Publication statusPublished - 2011
Event10th International Conference on Technology of Plasticity, ICTP 2011 - Aachen, Germany
Duration: 2011 Sep 252011 Sep 30

Publication series

NameSpecial Edition: 10th International Conference on Technology of Plasticity, ICTP 2011

Other

Other10th International Conference on Technology of Plasticity, ICTP 2011
CountryGermany
CityAachen
Period11-09-2511-09-30

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics

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