对低塑性材料曲母线双向锥体形状零件的旋压成形工艺进行了大量试验和深入分析；确定了采用先缩旋再扩旋最后整形的联合成形工艺，并相应设计出可行的工艺装置；对缩旋、扩旋及整形进行了试验研究。 A large number of experiments and in-depth analyzes have been carried out on the spinning process of the bi-directional pyramidal shaped parts of the low plasticity material. The joint forming process using the final shaping of the first shrinkage and then the expansion is determined, and the feasible process equipment is designed accordingly. Shrinkage, Spinning and shaping experiments were carried out.