本文根据大型储水、油球罐的实际受力情况提出了变厚度球罐的整体无模成形工艺,并通过试验获得了成功。本文对该工艺的可行性进行了试验探讨;对壳体的结构设计、材料选择、工艺参数、试验测试方法进行了研究;并对壳体的应变分布、胀形前后的壁厚分布及直径变化进行了测量,指出了变厚度球壳的应用前景。 In this paper, based on the actual situation of large storage tank and oil tank, the whole moldless forming process of variable thickness spherical tank is proposed and the result is successful. In this paper, the feasibility of the process was discussed experimentally; the shell structure design, material selection, process parameters, test methods were studied; and the shell strain distribution, wall thickness distribution before and after bulging and the change of diameter The measurements were made and the application prospect of the variable thickness spherical shell was pointed out.