强力旋压成形是制造发动机连杆衬套的一种重要工艺方法,其成形过程中的加工精度至关重要。本文以壁厚差及扩径量为评价指标,利用灰色关联度分析法对正交试验数据进行了分析,研究了主要参数对工件尺寸精度的影响规律,获得了强力旋压连杆衬套最优工艺参数及对评价指标影响的主次顺序。结果表明:影响尺寸精度的主次顺序为:进给比>减薄率>旋轮工作角>旋轮圆角半径。 Strong spinning is the manufacture of engine connecting rod bushings an important process method, the forming accuracy of the processing is crucial. In this paper, the difference of wall thickness and the amount of expansion are taken as the evaluation indexes, and the gray correlation analysis method is used to analyze the orthogonal experiment data. The influence of the main parameters on the workpiece dimensional accuracy is studied. Excellent technical parameters and the order of influence on the evaluation index. The results show that the order of the primary and secondary factors affecting the dimensional accuracy is: feed ratio> thinning rate> working angle of rotating wheel> radius of rotating round wheel.