Wrinkling analysis in shrink flanging

Xi Wang, Jian Cao, Ming Li

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Flanging is a commonly used sheet forming operation to increase the stiffness of a sheet panel and/or to create the mating surface for subsequent assemblies. This paper presents an energy approach to predict the onset of wrinkling during a shrink flanging operation. A curved sheet model is established to obtain the critical buckling stress in terms of stress state, geometry properties and material properties. The predictions of wave number agree well with the experimental results. The results indicate that the sensitivity of wave number on the plan view radius (PVR) increases as PVR decreases, and the wave number decreases with the increase of flange length. The critical flange length is significantly influenced by PVR, sheet thickness and material work-hardening, and is not sensitive to material strength and anisotropy.

Original languageEnglish (US)
Pages (from-to)426-432
Number of pages7
JournalJournal of Manufacturing Science and Engineering, Transactions of the ASME
Volume123
Issue number3
DOIs
StatePublished - Aug 2001

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering
  • Computer Science Applications
  • Industrial and Manufacturing Engineering

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