• Er. Rahul Mehra
• Er. Harpreet Singh
• Er. Anam Singh

: Electrical Discharge Machining (EDM) is a controlled metal-removal process which is used to remove the metal by means of electric spark erosion. In this process an electric spark is used as the cutting tool to cut (erode) the workpiece to produce the finished part to the desired shape. There are various EDM process parameters (variables) on which the machining performances depends. These parameters are polarity, peak current, pulse on time, pulse off time and flushing pressure which are being reviewed in this paper. New techniques and modifications has also been reviewed briefly. Polarity describes which side of the spark gap is positive or negative. Polarity can effect speed, finish, wear, and machining stability. Peak current is the most important parameter in EDM process and it is amount of power used in discharge machining. Pulse on time (P ON) is the time period during which machining is takes place. Pulse off time (P OFF) is the time during which re-ionization of dielectric takes place and lastly flushing pressure which helps in removal of the metal particles (chips) from the working gap.

P ON, P OFF, EDM, MRR, SR, Taguchi method

"A REVIEW ON THE PROCESS PARAMETERS OF ELECTRO DISCHARGE MACHINING TECHINQUE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.3, Issue 5, page no.338-341, May-2016, Available :http://www.jetir.org/papers/JETIR1605058.pdf

"A REVIEW ON THE PROCESS PARAMETERS OF ELECTRO DISCHARGE MACHINING TECHINQUE", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.3, Issue 5, page no. pp338-341, May-2016, Available at : http://www.jetir.org/papers/JETIR1605058.pdf