Experimental Investigation of EDM Parameters on Al-LM6/SiC/B4C Hybrid Composites

Abstract:

In this work, a Material removal rate (MRR), Tool wear rate (TWR), Radial and overcut (ROC), a study on the die-sinking Electrical discharge machining (EDM) of Al-LM6/SiC/B4C hybrid composites has been carried out. The selection of above-mentioned hybrid composite was made considering its widespread application in aerospace, automotive, defense, biomedical and marine industries, due to its light weight and higher mechanical properties. This experiment was made only for the finish stage and has been carried out on the influence of four design factors: composition, discharge current (Ip), Pulse-on-time (Ton), Radial overcut (ROC) and Duty factors (Tau), over the previously mentioned, responded variables. This has been done by means of the method of design of experiment (DOE) which allows us to carry out the above-mentioned analysis performing a relatively small number of experiments. The study indicates that when discharge current (Ip) increases, Material removal rate increased. In the case of Tool wear rate the most influencing factor is discharge current, then pulse on time. In radial over cut most influence factor is discharge current then pulse on time, duty factor and composition has least.

• Periodical: Applied Mechanics and Materials (Volume 877)
• Pages: 149-156
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.877.149
• Online since: February 2018
• Authors: Manish Shukla*, Pankaj Agarwal, Mohan Kumar Pradhan, S.K. Dhakad
• Keywords: Aluminium Matrix Composite (AMC), Electrical Discharge Machine (EDM), Material Removal Rate (MRR), Radial Overcut (ROC), Tool Wear Rate (TWR)

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