在对旋涡气流加工中磨具受力分析的基础上 ,阐述了旋涡气流光整加工的机理 ,分析了加工过程中球形磨具对零件内表面的微量切削、滚压、碰撞及刻划作用 ,指出在旋涡气流加工中起主要作用的是磨具对内圆表面的微量切削和滚压作用。旋涡气流加工可达到去除毛刺、细化表面和完成零件初期磨合的效果 ,同时通过磨具对管壁的碰撞、滚压 ,可改变工件表层的物理力学性能 ,最终改善零件表面的完整性 Based on the analysis of the abrasive force in the vortex flow machining, the mechanism of the vortex airflow finishing is elaborated. The effects of the micro-cutting, rolling, impacting and scribing of the spherical abrasive on the inner surface of the workpiece are analyzed. It is pointed out that the main function of the vortex air flow machining is the micro-cutting and rolling effect of the abrasive on the inner circle surface. Vortex airflow processing can achieve burr removal, refining the surface and the completion of the initial part of the grinding effect, at the same time through the abrasive tube wall collision, rolling can change the physical and mechanical surface properties of the workpiece, and ultimately improve the surface integrity of parts