Dry WEDM in Improving LS-WEDMed Surface Quality
Utilizing gas as the dielectric instead of dielectric liquid has enabled the development of dry wire electrical discharge machining (dry WEDM) technology for finishing cut. Experiment results showed that Low-Speed WEDM (LS-WEDM) in gas offers advantages such as better straightness, and shorter discharge gap. This paper studies on influence of different gas dielectrics, wire winding speed and pulse duration on the WEDMed surface quality (discharge gap, straightness, surface roughness, removal rate) in finishing. New attempt of applying dry WEDM as the 4th cut had been proved feasible in improving conventional multiple cut surface quality of LS-WEDM.
Shengqiang Yang, Shichun Yang and Hang Gao
T. Wang et al., "Dry WEDM in Improving LS-WEDMed Surface Quality", Advanced Materials Research, Vols. 53-54, pp. 387-392, 2008