针对现有连杆衬套旋压成形工艺存在的尺寸精度控制难导致的工艺制定周期长、后续加工材料去除量大、人力物力浪费严重等问题,采用单因素试验设计方法,以旋压件的扩径量和壁厚偏差作为尺寸精度的评价指标,获得了减薄率、进给比以及旋压后工件的退火温度对工件尺寸精度的影响规律。结果表明:随着减薄率的增加,扩径量和壁厚偏差均增大;进给比对工件靠近口部的扩径量影响显著,较小的进给比有利于减小口部扩径,随着进给比增加,壁厚偏差先增大后减小;退火温度的变化对工件靠近底部和口部的扩径量的影响程度明显高于工件中部的扩径量,对壁厚偏差的影响可以忽略不计。 Aiming at the problems such as the long development cycle, the large amount of material to be removed after processing and the waste of manpower and material resources, which is difficult to control due to the dimensional accuracy control of the existing connecting rod bushing spinning forming process, the single factor experiment design method is adopted, As the evaluation index of the dimensional accuracy, the effects of the thinning rate, the feed ratio and the annealing temperature of the workpiece after spinning on the dimensional accuracy of the workpiece were obtained. The results show that as the thinning rate increases, the diameter expansion and the wall thickness deviation increase. The feed ratio has a significant effect on the diameter expansion of the workpiece near the mouth, and the smaller feed ratio is beneficial to reduce the mouth expansion Diameter, as the feed ratio increases, the deviation of the wall thickness first increases and then decreases; the influence of annealing temperature on the expansion of the workpiece near the bottom and mouth is significantly higher than that of the middle part of the workpiece, The effect of bias is negligible.