Material with unique metallurgical properties such as Titanium, Haynes-25, Molybdenum, Columbium C-103,
hardened steels, and other superalloys was developed to meet the demands of extreme applications in aerospace, automobile, and
nuclear reactor industries. Machining these materials using a conventional machining process is a challenging task. Electrical
discharge machining (EDM) is one of the most suitable non-conventional processes to achieve precise quality components with
optimum tooling cost. EDM process becomes a natural choice for machining of superalloys; its low machining removal rate and
poor surface quality have been the key problems restricting its development. To overcome these drawbacks, the nanopowder
suspended dielectric oil is used, which increases its conductive strength and increases the discharge gap between the tool and
workpiece. This newly developed material removal process is called Powder Mixed Electrical Discharge Machining (PMEDM).
