Abstract—Cryogenic treatment enhances the abrasion resistance and fatigue resistance of electrode material. It also increases the electrical and thermal conductivity by reducing its defects and inclusions. The cryogenic process also relieves residual stresses in metals and plastics. In this research work an effort has been made to compare the machining characteristics of one untreated and one cryogenically treated Cu electrode using Electron Discharge Machine (EDM). This study includes the three processing parameters such as peak current, voltage and pulse on time (Ton). The output parameter for study is Radial Overcut (ROC). A set of eighteen experiments (Taguchi design) were performed to develop relationships between input and output parameters. The results of the study suggest an overall improvement of 17% in Radial Overcut.

Index Terms—Cryogenic treatment, Electrical discharge machining, Taguchi design, Radial overcut, ANOVA

Cite: Prabhjot Balraj Singh, Gurpreet Singh Phull, and Shivraj Puggal, " Study of Radial Overcut during EDM of H-13 Steel with Cryogenic Cooled Electrode Using Taguchi Method ," International Journal of Mechanical Engineering and Robotics Research, Vol. 4, No. 1, pp. 33-40, January 2015.