通过不同壁厚减薄率的筒形件旋压的单向拉伸试验获得了应力—应变关系曲线。在弹性变形和塑性变形工艺的基础上,分析了减薄率对屈服强度、弹性模量以及切线模量的影响。并且通过修正双线性弹塑性本构关系,获得了强力旋压成形的本构关系。结合宏观增量本构关系和拉伸试验结果,采用Mises屈服准则和随动强化模型建立了适合强力旋压成形的弹塑性增量本构方程,这为筒形件强力旋压成形奠定理论研究和实际应用的基础。 The stress-strain curve was obtained through the uniaxial tensile test of the spinning cylinder with different wall thickness reduction ratio. Based on the elastic deformation and the plastic deformation process, the influence of the thinning rate on the yield strength, elastic modulus and tangent modulus was analyzed. And by modifying the bilinear elasto-plastic constitutive relation, the constitutive relation of the strong spinning is obtained. Combined with the macroscopic incremental constitutive relation and the tensile test results, the Mises yield criterion and the follow-up hardening model are used to establish the elasto-plastic incremental constitutive equation which is suitable for the strong spinning forming. And practical application of the foundation.