电磁成形是一种高速成形技术,可以提高一些塑性变形金属的成形性。为评价轻金属如铝和铝合金的电磁成形的能力,需要研究材料成形过程中的应力和应变状态。对电磁成形AlMn0.5Mg0.5板材的应力和应变进行有限元建模并通过实验进行验证。采用X射线衍射确定材料中的残余应力。采用三轴试验机,通过刻在样品上网格点的位移计算应变。建模结果与实验数据具有很好的一致性。 Electromagnetic forming is a high-speed forming technique that improves the formability of some plastically deformed metals. To evaluate the ability of electromagnetic forming of light metals, such as aluminum and aluminum alloys, the stress and strain conditions in the material forming process need to be investigated. The stress and strain of the electromagnetic formed AlMn0.5Mg0.5 sheet were modeled by finite element method and verified by experiments. X-ray diffraction was used to determine the residual stress in the material. Using a triaxial testing machine, strain is calculated from the displacement of the grid points inscribed on the sample. The modeling results are in good agreement with the experimental data.