A retrospective study based on the soft computing approach in combined Ultrasonic Assisted Electrical Discharge Machining

Machining of super alloys, composite materials and some high strength hard to machine materials by using Electrical Discharge Machining (EDM) produces poor quality surface finish. Ultrasonic Assisted Electrical Discharge Machining (USEDM) is one of the advanced hybrid type unconventional machining processes is developed to overcome the above quality problems. The ultimate aim of this paper is to conduct a literature survey in USEDM operations used by researchers among different applications using various materials. Also took a deep review in different prediction and optimization techniques used by researchers to obtain the optimal input parameters setting for getting an optimal solution in machining area.