The term "machinability" refers to an easy cutting action that allows for the removal of material with the desired surface finish at a cheaper cost. Working with a material that is well-machinable means that the unwanted material can be removed quickly while using only a small amount of power, with a reasonable level of surface finish and little tool wear. Different engineering materials have varying degrees of machinability depending on the specific machining conditions. a variety of parameters, such as cutting force, power consumption, tool life rating, surface integrity, limiting rate of material removal, tool geometry with the material, and stability of the machine tool, are used to determine the machinability of a certain material. Machinability is a relative concept so influenced by a variety of elements. Consideration must be given to the term machinability index in order to compare relative machinability. However, the machinability of cutting-edge machining techniques like Powder Mixed Electric Discharge Machining (PMEDM) and Electric Discharge Machining (EDM) differs slightly from that of traditional machining. The intricacy of EDM or PMEDM and other aspects affect how machinable it is. Material removal rate (MRR), tool wear rate (TWR), and surface roughness (SR) of the machined item are three crucial characteristics of EDM machinability. As a result, current study into the machinability of EDM or PMEDM has proved interesting. Due to PMEDM's numerous benefits, numerous researchers have concentrated their research on it during the past few decades. The objective of the present work is to review multipletypes of research. In addition, to highlight and summarize the research works in a systematic order and hence, to find out the future scopes in this particular field. It will motivate the researchers for exploring their study in the considered arena

EDM, WEDM, Dielectric fluid, spark gap, electrode, PMEDM,MicroEDM