An inventive machining technique called wire cut electrical discharge machining (WEDM) makes it possible to precisely produce components with sharp edges and high hardness that are otherwise exceedingly challenging to mill. The ultimate objective of process engineering for manufacturing (WEDM) is to optimise several process parameters analytically. several studies have examined various methods to achieve this aim. The results of a large body of previous research are ranked in this paper according to several different dimensions, including the influence of machining parameters, pulse classification, the effect of wire electrode parameter on machining criteria, thermal load on wire electrode, parametric optimisation, and adaptive systems. This report informs the reader, based on a literature assessment, of the best settings for several machining parameters. The planned study project's future scope is envisioned.