On the Determination of the Optimum Blank Shape of Non-axisymmetric Drawn Cup by the Finite Element Method

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概要

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• In order to determine the optimum shape and size of a blank for the deep drawing of a non-axisymmetric cup with the flat-headed punch, a numerical modelling of the noncircular cup drawing process and a finite element procedure are proposed. The optimum blank shapes are calculated by the repetition method taking account of the strain-hardening characteristic of the sheet metal and the plane-stress state. The predictions are made in terms o the optimum blank shapes, drawing force-punch stroke curves and products with a uniform drawing height around their peripheries, for square, rhombic, false elliptical and cocoon-shaped cups. Close agreement is recognized between the theoretical predictions and experiments for hollow shells of brass sheet metal.

著者

• Murota Tadao

  Miyazaki University

• ISEKI Hideo

  Tokyo Institute of Technology

関連論文

• On the Determination of the Optimum Blank Shape of Non-axisymmetric Drawn Cup by the Finite Element Method
• Finite Element Method in the Analysis of the Hydrostatic Bulging of a Sheet Metal (Part 2)
• Finite Element Method of Analysis of the Hydrostatic Bulging of a Sheet Metal (Part 1)
• On the Determination of the Redrawing Ratio in the Redrawing of Cylindrical Shells, with Numerical Simulation

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