Energy-based modeling of an electrically-assisted forging process

Cristina Bunget, Wesley A. Salandro, Laine Mears, John Timothy Roth

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

38 Scopus citations

Abstract

A new approach to improving formability of metals using electrical current field application has been recently studied, and found to not only greatly improve achievable elongation, but also has a beneficial effect on residual stress levels and reduces elastic springback magnitude. The effect has been shown to be somewhat attributable to thermal softening, but there are also unaccounted electrical effects. This paper presents a formal quantification of the electrical field effect using an energy balance approach. A physical model incorporating the electrical field and mechanical energy input is derived, and a new electroplastic effect coefficient is introduced to account for the direct contribution of the current on material flow. The derived model is compared against experimental results and predicts the electroplastic behavior.

Original languageEnglish (US)
Title of host publicationTransactions of the North American Manufacturing Research Institution of SME 2010, NAMRI/SME
Pages647-654
Number of pages8
StatePublished - Nov 16 2010
Event38th Annual North American Manufacturing Research Conference, NAMRC 38 - Kingston, ON, Canada
Duration: May 25 2010May 28 2010

Publication series

NameTransactions of the North American Manufacturing Research Institution of SME
Volume38
ISSN (Print)1047-3025

Other

Other38th Annual North American Manufacturing Research Conference, NAMRC 38
CountryCanada
CityKingston, ON
Period5/25/105/28/10

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All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Bunget, C., Salandro, W. A., Mears, L., & Roth, J. T. (2010). Energy-based modeling of an electrically-assisted forging process. In Transactions of the North American Manufacturing Research Institution of SME 2010, NAMRI/SME (pp. 647-654). (Transactions of the North American Manufacturing Research Institution of SME; Vol. 38).