Electrical Discharge Coating a Potential Surface Engineering Technique: A State of the Art

Electrical discharge coating (EDC) process is used to deposit material on workpiece surface from sacrificial or green compact tool electrode in an electrical machine. The paper presents the mechanism of EDC using and powder mixed dielectric methods. material, size, parameters, type dielectrics can directly affect integrity workpiece. Here, a map as function its classification, advantages, applications for wide range engineering materials offers proper template evaluation phenomena. This study shows that economic compared other costlier techniques. Additionally, effect various EDM parameters tribological behavior deposited coatings studied with their pros cons. Finally, current research trends challenges are elaborated.