Wire electrical release machining (WEDM) innovation has developed at special case rate since it was first applied over
long term prior.WEDM is a widely recognized unconventional material cutting process used to manufacture components with
complex shapes and profiles of hard materials. In this thermal erosion process, there is no physical contact between the wire tool
and work materials. Wire Electrical Discharge Machining (WEDM) is getting more tasks in fields like dies, punches, aero and
many more. It is the very difficult task to get optimum process parameters for higher cutting efficiency. In WEDM process rough
machining gives lesser accuracy and finish machining gives fine surface finish, but it reduces the machining speed. This review
involves process, principle, literature and applications of WEDM using Taguchi array.