OPTIMIZATION OF NON ELECTRICAL & ELECTRICAL PARAMETERS IN EDM FOR MACHINING DIE STEEL WITH THE USE OF COPPER ELECTRODE BY APPLYING THE TAGAUCHI TECHNIQUE

Author’s Name :  Ghadekar Nilesh Uttam | Mayank Ladha | Dr. Pradeep Patil

Volume 07 Issue 01  Year 2020  ISSN No:  2349-3860  Page no: 17-20

Abstract:  Electrical Discharge Machining (EDM) is one of the most popular non-traditional machining processes used for machining conducting materials which are difficult to machine by convectional machining process. EDM is thermo-electric process in which metal melts and vaporizes and rapidly cool by dielectric forming debris and thus metal is removed by flushing process. The present work explores the machining conditions which include the effect of parameters like current, pulse on time, pulse off time, concentration of metal powder in dielectric on the MRR and EWR. It is attempted to find the optimal machining conditions for machining HCHCr steel using copper as tool. The experimental study was conducted on die sink type EDM located in institution central mechanical work shop. The design of experiment was conducted using Taguchi method of parametric design where in current, pulse on time pulse off time, mixed dielectric powder were selected and their effect on performance characteristic were MRR and EWR were studied. Experimental trials were conducted and result showed that current is the most significant parameter that influenced the machining response parameters like MRR and EWR.

Keywords: EDM, EWR, tool wear, current etc.

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