扭压变形是在变形中沿坯料高度方向施加压力的同时，沿坯料横截面方向施加扭矩，将工件与工具间接触摩擦的有害作用转变为积极的有益作用，从而减小变形力，改善工件的组织性能。对其变形过程进行了数值模拟和试验研究，并与镦粗变形作了比较。在有限元模拟中，采用了分析区域选取、拟三维处理及摩擦功率的计算等方法，计算值与光塑性试验结果相吻合。 Torsion distortion is the application of pressure along the blank height direction during deformation while applying torque along the cross-sectional direction of the blank to convert the deleterious effects of contact friction between the workpiece and the tool into a positive beneficial effect, thereby reducing the deformation force and improving the workpiece’s Organizational performance. The deformation process of the numerical simulation and experimental study, and compared with the upsetting deformation. In the finite element simulation, the methods such as the selection of the analysis area, the quasi-three-dimensional processing and the calculation of the frictional power are adopted, and the calculated values ​​are consistent with the results of the photoplastic test.