Experimental Investigation on Air-Aided Water EDM
Experiments for a new type of electric discharge machining (EDM) were conducted with the water film dielectric formed by tap water and compressed air. An energy factor E is introduced and employed to estimate unit-area effective power input. The experiments show that the flushing conditions with lower air jet pressure can get lower relative tool wear and higher material removal rate (MRR). Higher discharge current and higher energy factor E obtain the higher MRR in air-aided water EDM with positive polarity tool.
Xianghua Liu, Zhengyi Jiang and Jingtao Han
J. J. Yang et al., "Experimental Investigation on Air-Aided Water EDM", Advanced Materials Research, Vols. 148-149, pp. 471-474, 2011