Prediction of springback in straight flanging operation

Jian Cao, Zhihong Liu, Wing Kam Liu

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

A straight flange problem is investigated with the expectation that this will lead to a better understanding of the deformation mechanism and to more complicated flanging problems. The `in-die' shape of the part is subdivided into a number of segments and individual springback of each segment is investigated, by releasing the elastic energy element by element, using the Finite Element Method (FEM). Typical distribution of the springback angle along the blank is obtained and found to be quite different from the widely used constant springback assumption for the curved part of the flange. A new model incorporating a non-uniform moment distribution at the curved part is proposed which reflects the above observation. Explicit analytical formulae are derived and the analytical predictions match with the experimental results very well.

Original languageEnglish (US)
Pages921-928
Number of pages8
StatePublished - Dec 1 1999
EventManufacturing Science and Engineering - 1999 (The ASME International Mechanical Engineering Congress and Exhibition) - Nashville, TN, USA
Duration: Nov 14 1999Nov 19 1999

Other

OtherManufacturing Science and Engineering - 1999 (The ASME International Mechanical Engineering Congress and Exhibition)
CityNashville, TN, USA
Period11/14/9911/19/99

ASJC Scopus subject areas

  • Engineering(all)

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