采用有限元多晶体模型对无模多点成形条件下不同加载方式的板条多点弯曲成形过程进行了数值模拟。利用作者开发的FEPM软件系统预测出多点模具成形法和边部向中心成形法两种变形路径下的弯曲成形结果 ,同时给出了边部向中心成形法变形过程各阶段的等效应力场、等效应变场和平均应力场等 ,并对不同加载方式下金属的塑性流动规律进行了理论与实验对比。 The finite element polycrystalline model was used to simulate the multi-point bending process under different loading conditions under the condition of no-mold multi-point forming. The FEPM software system developed by the author predicts the bending deformation results of the multi-point die forming method and the edge-to-center forming method. At the same time, the equivalent stress field in each phase of the deformation process of the edge-to-center forming method , Equivalent strain field and average stress field, etc, and the plastic and metal flow laws under different loading modes are compared theoretically and experimentally.