Investigation of the Effects of Dielectric Inlet Pressure in Inner Jetted Dielectric EDM Milling
In layer-by-layer EDM milling based on inner jetted dielectric, the dielectric inlet pressure is an important process parameter and has great influence on the machining characteristics. So, numerical simulation of the liquid-solid two-phase flow field in discharge gap is conducted. The simulation results of debris concentration reveal that the debris can be evacuated from the discharge gap in time, which increases the machining process stabilization and improves the machining efficiency. Finally, the effect of dielectric inlet pressure on material removal rate (MRR) and tool wear ratio (TWR) were also researched and discussed. The optimum inlet pressure, which maximized the MRR and minimized the TWR, was found through experiment.
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Y. Q. Wang et al., "Investigation of the Effects of Dielectric Inlet Pressure in Inner Jetted Dielectric EDM Milling", Advanced Materials Research, Vols. 189-193, pp. 125-128, 2011