摘要：为研究强化研磨加工与轴承工件强度之间的关系，首先从理论上分析表面残余压应力对轴承工件裂纹扩展速率的影响，并通过实验验证强化研磨对提高轴承表面残余应力具有显著效果。结果表明，在保证工件粗糙度的情况下，要提高轴承表面残余应力，在强化研磨加工中喷射压力最好控制在0.4-0.6MPa。

关键词：强化研磨；轴承；套圈；残余应力；裂纹

中图分类号：TG580.692；TH133文献标志码：A

Effect of Jet Pressure on Bearings Surface Residual Stress of Workpiece

in Strengthening and Polishing Process

Tao Jianhua，Li Dacheng，Zhang Jie，Wu Tingjun，Liu Xiaochu

Abstract:In order to discuss the relationship between strengthening and polishing process and the surface residual stress of bearings，this paper first analyzes the effect upon the bearings crack growth rate on the surface residual compressive stress theoretically.Through the experimental verification，strengthening and polishing process to improve the surface residual stress has a significant effect. The results show that，under the conditions that can ensure the bearingsroughness，in order to improve the surface residual stress，the injection pressure is preferably controlled at 0.4-0.6MPa in the strengthening and polishing process.

Keywords:strengthening and polishing；bearing；rings；residual stress；crack