Effects of non-electrical parameters on profile accuracies and surface characteristics during wire-EDM of titanium alloy

Si3N4–TiN conductive ceramic composites: topography on EDMed surfaces and precise drilled holes

“…High material elimination led to excessive surface roughness, which produced deeper and larger discharge craters and also increased the pulse over time, both of which contributed to the expansion in surface roughness. Due to limited time for debris removal, the major influence of spark energy duration starts to build a deeper crater [27][28][29]. Wire electrical discharge machining (WEDM) with molybdenum wire results in an average surface finish with fewer cracks, craters, melted droplets, and globules of debris, strong conductivity, and the capacity to cut the hard material of conductive ceramic composite [30,31].…”