Abstract:

In order to discuss the machining mechanism and technology of abrasive flow machining for non-linear tube parts, a common rail tube was employed as the experimental subject. A self-developed abrasive flow polishing solution was used to machine non-linear tubes, and the key processing parameters were obtained during the machining processes. Through the analysis of these processing parameters, dominant relationship between the surface roughness of parts and machining parameters was evaluated quantifiably, the impact of key processing parameters on surface precision of the parts was explored. It is concluded that the abrasive flow machining can improve non-linear tube parts surface quality obviously, and improve the working reliability and service life of non-linear tube parts. The experimental results can provide the technology reference for the optimization of abrasive flow machining theories, and offer the guiding significance for determination of the optimal technology plan of abrasive flow machining non-linear tube parts.

Key words: abrasive flow machining, non-linear tube, experimental analysis, technological research

摘要：

为探讨磨粒流加工非直线管零件的加工机理及加工工艺，以共轨管为研究对象，利用自行研制的磨粒流抛光液对磨粒流加工非直线管关键工艺参数进行实验研究，定量化评价工件表面粗糙度与加工参数间的显性关系，探讨关键工艺参数对工件表面精度的影响，实验证实磨粒流加工确实可以明显改善非直线管零件的表面质量，从而提高非直线管零件的工作可靠性和使用寿命。实验结果可为磨粒流加工理论的优化研究提供参考，对确定磨粒流加工非直线管零件最优工艺方案具有一定的指导意义。

关键词: 磨粒流加工, 非直线管, 实验分析, 工艺研究