Liu Qiang, Dong Zhiwei, Chen Zhen, Shen Yang, Li Qiang, An Peng
Appl Opt. 2022 Jul 20;61(21):6366-6373. doi: 10.1364/AO.462686.
To improve the stability of magnetorheological jet polishing (MJP), a processing method of flow-focusing-assisted MJP is proposed in this paper. A relevant experimental setup was developed based on this method. The effects of the parameters (gas pressure drop, diameter of the small hole, and focusing distance) in the flow-focusing technique on the jet stability were studied by computational fluid dynamics simulation and experiment. The results show that the optimal gas pressure range is from 0.6 to 0.7 times the jet pressure, the optimal diameter of the small hole range is from 2.1 to 2.3 times the nozzle diameter, and the optimal focusing distance range is from 3.5 to 4.5 times the nozzle diameter. This is a preliminary attempt to provide a reference for future experimental studies of flow-focusing-assisted MJP.
为提高磁流变喷射抛光（MJP）的稳定性，本文提出了一种流动聚焦辅助MJP的加工方法。基于该方法开发了相关实验装置。通过计算流体动力学模拟和实验研究了流动聚焦技术中参数（气压降、小孔直径和聚焦距离）对射流稳定性的影响。结果表明，最佳气压范围为射流压力的0.6至0.7倍，最佳小孔直径范围为喷嘴直径的2.1至2.3倍，最佳聚焦距离范围为喷嘴直径的3.5至4.5倍。这是一次初步尝试，为未来流动聚焦辅助MJP的实验研究提供参考。
