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EDM machining of Al 6061 was performed under varying conditions of pulse current and pulse duration. Graphite was used as an electrode material with distilled water and paraffin oil as two different dielectric mediums. The aim is to characterize the surface integrity produced as a result of EDM machining under both varying electrical and non-electrical parameters as it is important in determining...
Currently, electrical discharge machining (EDM) is the established manufacturing process for making holes through Ni superalloy turbine blades to facilitate blade cooling. Surface integrity of these sub-millimetre holes is of paramount importance since it directly influences the fatigue life of the component. In this paper, EDM is compared against laser and mechanical micro-hole drilling of Inconel...
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