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Implementation of backward tracing scheme of the FEM for design of initial tubular blank in hydroforming by Jeong Kim; Beom-Soo Kang is a Engineering article available to read on EtoBox.

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Tubular hydroforming has been widely applied to the automotive industry recently, and the ®nite element analysis is rapidly used as an effective tool of evaluation and optimization on designing of hydroforming dies and processes. Successful hydroforming depends on selection of proper tubular blank and sound preform shape as well as reasonable combination of the internal pressure and the axial feeding. In this study, a novel ®nite element method (FEM) program for the design of preforms in tube hydroforming, which utilizes a rigid-plastic approach and the backward tracing scheme, is constructed with careful numerical treatment of boundary conditions at the die±workpiece interface. This paper also deals with prediction of the initial tube dimensions and intermediate con®guration for preform design in hydroforming using numerical simulation by the implicit FEM combined with the backward tracing scheme. The developed program of backward tracing technique is implemented to the hydroforming process in a square and a rectangular die and has been proved to be effective.

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Author

Jeong Kim; Beom-Soo Kang

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0924-0136)

Published

2002

Language

EN

Field

Engineering (Physical Sciences)