A new finite element model based on U-bending benchmark of NUMISHEET '93 has been proposed to predict springback with contact evolution between the sheet and dies.
The influence of process parameters on springback of sheet metal is studied comprehensively by using U-shape sheet metal as the test object.
以U形板料为研究对象，综合考察评价了多个工艺参数对U形板料冲压回弹量的影响。
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A finite element model based U-bending benchmark of NUMISHEET '93 has been used to predict springback with contact evolution between the sheet and dies.