탄소성 유한요소법에 의한 드로우비드 성형 해석Numerical Simulation of Drawbead Formation in a Binder Wrap Process by an Elasto-plastic Finite Element Method

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Drawbead formulation is the first process together with a binder wrap process in a sheet metal forming process. The purpose of a drawbead is to control the flow of the metal into the die in panel press forming. To simulate the drawbead formation process, and elasto-plastic finite element formulation is derived from the equilibrium equation and related boundary conditions considering the proper contact conditions. The developed finite element program is applied to drawbead formation in the plane strain condition. The simulation of drawbead formation produces the distribution of stress and strain along the bead and the resultant elongation of the sheet in the cavity region with respect to various cavity dimensions of the sheet as well as the punch force of a drawbead and the amount of draw-in with respect to the stroke of a drawbead. The numerical results provides the fundamental information as a boundary condition to analyze the complex binder wrap phenomena and panel press forming in a simple way.
Publisher
한국소성가공학회
Issue Date
1995
Citation

한국소성가공학회 '95춘계학술대회 논문집

URI
http://hdl.handle.net/10203/20610
Appears in Collection
ME-Conference Papers(학술회의논문)

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