Main Article Content
The aim of this research is to investigate the improvement for drilling hole on the tool steel in the electrical discharge machining. The applied rotating electrode with modified dielectric flushing through the axle of electrode was performed in this study. The obtained results found that the machining time and material removal rate in the suction flushing through the axle of electrode were independent with the rotating speed. The machining time was reduced by 62% and material removal rate increased by 154 % compared to the side flushing with conventional electrode. Moreover, higher material removal rate was affected and increased the surface roughness of drilled wall by approximately 65% but the gap clearance was improved by 59 %. In addition, the efficiency in the electrical discharge machining with pressure flushing through the axis of electrode was also studied in this research.
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Barenji, R.V., Pourasl, H.H. and Khojastehnezhad, V.M. 2016. Electrical discharge machining of the AISI D6 tool steel: Prediction and modeling of the material removal rate and tool wear ratio. Precision Engineering 45: 435-444.
Choudhary, S.K. and Jadoun, R.S. 2014. Current advanced research development of electric discharge machining (EDM): a review. International Journal of Research in Advent Technology 2(3): 273-297.
Dewangan, S., Gangopadhyay, S. and Biswas, C.K. 2015. Multi-response optimization of surface integrity characteristics of EDM process using grey-fuzzy logic-based hybrid approach. Engineering Science and Technology, an International Journal 18: 361-368.
Jamkamon, K. and Janmanee, P. 2014. Deep hole of AISI P20 mold steel material by electrical discharge machining. Applied Mechanics and Materials 590: 244-248.
Jaharah, A.G., Liang, C.G., Wahid, S.Z., Rahman, A. and Hassan, C.H. 2008. Performance of copper electrode in electrical discharge machining (EDM) of AISI H13 harden steel. International Journal of Mechanical and Materials Engineering 3(1): 25-29.
Jeevamalar, J. and Ramabalan, S. 2015. Die sinking EDM process parameters: a review. International Journal of Mechanical Engineering and Robotics Research 4(1): 315-326.
Kumar, R. and Singh, I. 2019. A modified electrode design for improving process performance of electric discharge drilling. Journal of Materials Processing Technology 264: 211-219.
Makenzi, M.M. and Ikua, B.W. 2012. A review of flushing techniques used in electrical discharge machining, pp. 162-165. In Proceedings of the 2012 Mechanical Engineering Conference on Sustainable Research and Innovation Conference. Africa Institute for Capacity Development (AICAD), Juja, Kenya.
Murray, J., Zdebski, D. and Clare, A.T. 2012. Workpiece debris deposition on tool electrodes and secondary discharge phenomena in micro-EDM. Journal of Materials Processing Technology 212(7): 1537-1547.
Muthuramalingam, T. and Mohan, B. 2013. Influence of tool electrode properties on machinability in spark erosion machining. Materials and manufacturing processes 28(8): 939-943.
Pavani, P.N.L., Rao, R.P. and Santa Rao, K. 2017. Performance assessment and mathematical modeling of process parameters in electrical discharge machining of EN-31 tool steel material using taguchi DOE. Engineering Journal 21(2): 227-236.
Risto, M., Haas, R. and Munz, M. 2016. Optimization of the EDM drilling process to increase the productivity and geometrical accuracy. Procedia CIRP 42(1): 537-542.
Sapkal, S.U. and Jagtap, P.S. 2018. Optimization of micro EDM drilling process parameters for titanium alloy by rotating electrode. Procedia Manufacturing 20: 119-126.
Tanjilul, M., Ahmed, A., Kumar, A.S. and Rahman, M. 2018. A study on EDM debris particle size and flushing mechanism for efficient debris removal in EDM-drilling of Inconel 718. Journal of Materials Processing Technology 255: 263-274.
Yilmaz, O. and Okka, M.A. 2010. Effect of single and multi-channel electrodes application on EDM fast hole drilling performance. The International Journal of Advanced Manufacturing Technology 51: 185-194.