论文部分内容阅读
基于有限元法建立的DYNAFORM用于模拟钣金成形工艺,对拉深、冲压模具的拉深过程进行数值模拟,通过观察零件图、FLD图、零件厚度变化图、零件应变图,预测成形过程中板料的裂纹、起皱、减薄、划痕、回弹、成形刚度和表面质量来获得在拉深过程中的可行性和模具设计的合理性,从而评估板料的成形性能和产生各种缺陷的原因,以及采用的预防措施,为板金成形工艺及模具设计提供技术支持。
DYNAFORM based on finite element method is used to simulate the sheet metal forming process. The drawing process of the drawing and stamping die is numerically simulated. By observing the part drawing, FLD drawing, part thickness variation diagram and part strain diagram, Sheet Crack, Crease, Thinning, Scratch, Rebound, Forming Stiffness and Surface Quality to Gain Feasibility in Drawing Process and Mold Design to Evaluate Sheet Formability and Produce Various The reason of the defect, and the preventive measures adopted to provide technical support for the sheet metal forming process and mold design.