This paper overviewed the prediction methods of forming limit in sheet metal forming, which included forming limit stress diagram, the maximum forming thinning ratio, forming limit diagram and ductile fracture criteria(DFC).

• 摘要对板料成形中的成形极限应力图、最大变薄率、成形极限图以及韧性断裂准则等预测成形极限的方法，进行了综述和分析。