锻压技术

筒形件错距旋压圆度误差研究

英文标题：Research on roundness error of cylinder stagger spinning

作者：吕伟樊文欣陈东宝席奇豪

单位：中北大学

分类号：

出版年,卷(期):页码：2016,41(7):57-61

摘要：

采用单因素试验设计方法，以筒形件错距旋压关键工艺参数：减薄率、进给比、径向错距为试验变量，以基于最小二乘法评定的旋压后工件外表面圆度误差为评价指标，获得了各工艺参数对旋后工件圆度误差的影响规律。结果表明：当减薄率为25%~35%时，其值的变化对旋压件的圆度误差影响不大；当减薄率超过35%时，旋压件的圆度误差随减薄率的增大而增大；随着进给比的增加，旋压件的圆度误差先减小后增大；适当减小旋轮径向错距，即增加首轮的壁厚减薄量，有利于减小旋压件的圆度误差。

By single factor experimental method, taking critical process parameters of cylinder stagger spinning including reduction ratio, feed ratio and radial offset as variable, and the roundness error of external surface of the workpiece after spinning judged by the least square principle method as the evaluating index, the influences of the above parameters on the roundness error were obtained. The result shows that when the reduction ratio is from 25% to 35%, it has little effect on the roundness error. However, when the reduction ratio surpasses 35%, the roundness error increases with the increase of reduction ratio, and the roundness error first increases and then decreases with the increase of feed ratio. A relatively small radial offset, which means the increasing of wall thickness thinning amount for the first roller is beneficial to reduce the roundness error.

基金项目：

山西省自然科学基金资助项目 (2012011023-2)

吕伟 ( 1992-) ，男，硕士研究生

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