根据高压对辊成型机关键部件——挤压辊的结构特点和工作特性,使用有限元方法对挤压辊(由辊轴和辊套组成)进行三维建模,分析了辊轴与辊套配合在不同过盈量下的接触应力分布及滑移趋势。结果表明,挤压辊辊轴与辊套配合部分的两个端面是应力集中区,实际设计加工时应特别考虑如何减少应力集中。 According to the structural characteristics and working characteristics of the squeezing roller, which is the key part of the high-pressure roll forming machine, the three-dimensional modeling of the squeezing roller (composed of the roller shaft and the roller sleeve) is carried out by using the finite element method. The contact stress distribution and slip tendency under different interferences. The results show that the two ends of the part of the squeeze roller shaft and the roller sleeve are stress concentration areas. In practical design and processing, special consideration should be given to how to reduce the stress concentration.