Thermal forming of light-weight alloys under a multi-stage forming process

C. P. Lai, Luen Chow Chan, C. L. Chow, Kai Ming Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


This article presents an experimental investigation aimed to obtain the optimum formability of light-weight alloys under the multi-stage forming process. Titanium alloy sheets (Ti-6Al-4V) and aluminium alloy sheets (AA5052) of thickness 1 mm with different widths (i.e. 20, 90, and 110 mm) are selected as forming specimens. In order to carry out the multi-stage forming process, a special fixture with a heating system for the pre-straining process is designed and manufactured. The limit dome heights of both titanium alloys and aluminium alloys are measured and recorded. The experimental results reveal that both of the light-weight alloys yielded enhanced ductility at higher working temperatures, because of a decrease in the yield strength. The formability of selected materials is found to be sensitive to the forming temperatures and multi-stage forming processes.
Original languageEnglish
Pages (from-to)797-803
Number of pages7
JournalProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Issue number4
Publication statusPublished - 1 Jan 2010


  • Light-weight alloys
  • Multi-stage forming
  • Warm-forming

ASJC Scopus subject areas

  • Mechanical Engineering


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