电化学加工, 喷射电解, 数值模拟, 加工质量

JED is a processing method without forming cathode or feed, which is different from the traditional ECM. Based on the theory of electric field, a two-dimensional mathematical model was established for JED. The model was validated by comparison of simulation and experimental results. The influence laws of machining quality with three important parameters were summarized by the comparative processes. Theses parameters included jet diameter, machining voltage and current. The results show that JED can obtain better hole quality with smaller nozzle under the same conditions of jet pressure and machining distance,the machining voltage should be higher than 120V, and the application of pulsed power supply in JED can improve the machining accuracy significantly compared with DC power. 