Zou Dongyi, Li Chaojiang, Yang Yuxin, Jin Xin, Liu Shenggui, Zhang Hongyi, Zhang Na
School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.
Department of Electronic and Computer Engineering, University of Alberta, 9120 116 St NW, Edmonton, AB T6G 1C9, Canada.
Materials (Basel). 2024 Oct 8;17(19):4915. doi: 10.3390/ma17194915.
Electropolishing is a widely used technique for polishing additive manufactured (AM) components, while complex internal surface polishing remains a challenge. In this study, we explore the use of ethaline as an electrolyte and investigate the effects of temperature, time, stirring speed, and voltage on the electropolishing effectiveness for AM tubes without pre-treatment through orthogonal experiments. The optimal combination of these factors is then applied in further electropolishing experiments on straight tubes with large length-to-diameter ratios and an angled tube. Our results indicate that temperature has the most significant impact on internal surface electropolishing performance, and other factors' effects are also analyzed. Ethaline can be a promising electrolyte for internal surface electropolishing of AM components because of its high viscosity, which is validated by flow field simulation of the hydrodynamic conditions inside the tubes.
电解抛光是一种广泛用于抛光增材制造（AM）部件的技术，而复杂内表面的抛光仍然是一项挑战。在本研究中，我们探索使用乙腈作为电解液，并通过正交实验研究温度、时间、搅拌速度和电压对未经预处理的AM管电解抛光效果的影响。然后将这些因素的最佳组合应用于对大长径比直管和弯管的进一步电解抛光实验。我们的结果表明，温度对内表面电解抛光性能影响最为显著，同时也分析了其他因素的影响。由于乙腈具有高粘度，它可能是一种用于AM部件内表面电解抛光的有前景的电解液，这通过管内流体动力学条件的流场模拟得到了验证。
