根据黏弹性理论及接触力学,对细长轴搓滚加工受力情况进行了分析,建立了受力模型,导出了轴内任一点应力计算公式,该应力由法向分布力引起的应力、切向分布力引起应力、法向集中力引起的应力、切向集中力引起的应力和均匀双轴拉应力5部分组成。搓滚加工压力、推力对轴的应力均有影响。根据应力计算公式可判断轴的某点是否发生塑形变形,轴的组织和性能情况;还可对搓滚加工压力及推力进行预估,用于指导生产。最后以一个实例的方式验证了公式的可行性。 Based on the viscoelastic theory and the contact mechanics, the force of slender shaft rolling is analyzed, the force model is established, and the formula of stress at any point in the shaft is deduced. The stress is caused by the stress caused by the normal distributed force, To stress distribution caused by stress, stress caused by normal concentration, stress caused by tangential concentration and uniform biaxial tensile stress composed of 5 parts. Rub roll processing pressure, thrust on the shaft stress are affected. According to the stress calculation formula can determine the axis of a certain point of occurrence of plastic deformation, shaft organization and performance of the situation; also roll processing pressure and thrust estimation, used to guide the production. Finally, an example to verify the feasibility of the formula.