Abstract Jet electrochemical (Jet-EC) milling, using a movable nozzle as the cathode, can fabricate complicated structures flexibly. With the dissolution restricted to a limited area by the electrolyte jet, high removal localization and good surface quality can be obtained. However, the edge of the machined groove is usually subject to stray corrosion because of the low current density in the edge area. In this paper, it is confirmed that the jet shape, which is determined by the working parameters, has a notable influence on the edge condition. Through experiments and analysis, the interrelation between the working parameters, jet shape and edge condition in Jet-EC groove milling is established. It is found that the stray corrosion on the edge can be reduced significantly by adjusting the jet shape, and the necessary conditions to completely eliminate the stray corrosion are established. Furthermore, based on the conclusions, a groove with both a sharp edge and a smooth surface is fabricated via a two-pass process. A deep groove (1.208 mm) with a sharp edge is produced via multiple-pass milling with downward cathode feeding.

中文翻译：

---

通过调整射流形状减少射流电化学铣削中的杂散腐蚀

摘要 喷射电化学（Jet-EC）铣削以可移动喷嘴为阴极，可以灵活地制造复杂的结构。由于电解液射流将溶解限制在有限的区域内，因此可以获得高去除定位和良好的表面质量。但是，由于边缘区域的电流密度低，加工槽的边缘通常会受到杂散腐蚀。在本文中，证实了由工作参数决定的射流形状对边缘条件有显着影响。通过实验和分析，建立了Jet-EC槽铣削加工参数、射流形状和刃口状态之间的相互关系。发现通过调整射流形状可以显着减少边缘的杂散腐蚀，并建立了彻底消除杂散腐蚀的必要条件。此外，基于该结论，通过两道工序制造了具有锋利边缘和光滑表面的凹槽。具有锋利边缘的深槽 (1.208 mm) 是通过多道铣削和向下阴极进给加工而成的。