Optimization of localized annealing for preform anneal forming of aluminum alloys

Jingjing Li, Yuanyuan Zhou, S. Jack Hu, L. Eduardo Izquierdo, Paul E. Krajewski, Theresa M. Lee

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

3 Scopus citations

Abstract

Preform anneal forming was developed to improve the formability of work hardenable aluminum alloys by introducing an annealing operation after the first forming stage (preform) (Krajewski, 2007). Annealing helps to eliminate the cold work from stage 1 forming and enable an aluminum panel to be formed into a complex shape in stage 2 forming using the same die. The main challenge for perform annealing is the added cycle time associated with a furnace annealing step. This challenge can be overcome if local heating can bo performed using induction heating or a similar technology. This paper presents a methodology to determine the optimal location of the annealed areas by combining finite element modeling and optimization methods. Simulation-based results on a typical 2D channel stamping and a 3D Marciniak cup drawing show, not surprisingly, that annealing the highest deformed zone is the best way to achieve larger stamping depths.

Original languageEnglish (US)
Title of host publicationTransactions of the North American Manufacturing Research Institution of SME 2010, NAMRI/SME
Pages411-418
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

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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  • Cite this

    Li, J., Zhou, Y., Hu, S. J., Izquierdo, L. E., Krajewski, P. E., & Lee, T. M. (2010). Optimization of localized annealing for preform anneal forming of aluminum alloys. In Transactions of the North American Manufacturing Research Institution of SME 2010, NAMRI/SME (pp. 411-418). (Transactions of the North American Manufacturing Research Institution of SME; Vol. 38).