Enhanced formability of 5754 aluminum sheet metal using electric pulsing

John Timothy Roth, Ivan Loker, Daniel Mauck, Matt Warner, Sergey F. Golovashchenko, Al Krause

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

73 Scopus citations

Abstract

Previous studies have established that the presence of an electric current within a metal during deformation can provide the same altered mechanical properties as working the specimen at an elevated temperature, while avoiding the negative effects associated with hot working. These previous studies indicated that the electrical current could significantly improve the formability of Aluminum alloys without appreciably raising the temperature. Considering this, the research herein further investigates this potential by examining the effect of pulsed direct current on the formability of 5754 Aluminum sheet metal, an alloy of interest within the automotive industry. The results show, with the proper parameters, a pulsed electrical current, applied during continuous tensile deformation, significantly improves the maximum elongation of the Aluminum. Moreover, in contrast to hot working, pulsing the electricity during deformation did not alter the Aluminum's grain structure/size and had very little effect on the number of microvoids within the Aluminum.

Original languageEnglish (US)
Title of host publicationTransactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36
Pages405-412
Number of pages8
Volume36
StatePublished - 2008
EventTransactions of the North American Manufacturing Research Institution of SME - Monterrey, Mexico
Duration: May 20 2008May 23 2008

Other

OtherTransactions of the North American Manufacturing Research Institution of SME
CountryMexico
CityMonterrey
Period5/20/085/23/08

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All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

Cite this

Roth, J. T., Loker, I., Mauck, D., Warner, M., Golovashchenko, S. F., & Krause, A. (2008). Enhanced formability of 5754 aluminum sheet metal using electric pulsing. In Transactions of the North American Manufacturing Research Institution of SME - Paper Presented at NAMRC 36 (Vol. 36, pp. 405-412)