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Abstract：
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The stainless steel flanged hemisphereshaped workpiece and paraboloid shaped workpiece was numerically simulated and analyzed by using the FEM simulation software MSC.Marc.First,using the drawing method to form the hemisphere-shaped workpiece and paraboloid shaped workpiece.The plastic deformation process was simulated with different parameters and the distribution and variation of stress,strain and thickness of sheet at the end of deformation were analyzed.By analyzing the technological parameters,such as the die shoulder radius,friction coefficient and the shape of male die which affecting the draw forming process,it was found that the forming quality was optimal if the round angle radius was 10 mm in drawing process.In order to compare the influence between different forming methods,the formation of hemisphereshaped workpiece using bulging method was simulated.It indicates that the deformation is more severe than drawing,and the thickness of the material after bulging is thinner and it does not have any thickening phenomenon.
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Reference：
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