Research Article Effect of SiC Particle Incorporated Dielectric Medium on Electrical Discharge Machining Behavior of AA6061/B4Cp/SiCp AMCs Johny Khajuria, 1 N. Nagabhooshanam, 2 Pankaj Sharma, 3 Atul Kumar, 4 Santosh Kumar Sahu, 5 Peyyala Sree Devi, 2 and Kuma Gowwomsa Erko 6 1 Department of Mechanical Engineering, Mahant Bachittar Singh College of Engineering and Technology, Jammu, Jammu and Kashmir, India 2 Department of Mechanical Engineering, Aditya Engineering College, ADB Road, Aditya Nagar, Surampalem 533437, Andhra Pradesh, India 3 Department of Mechanical Engineering, JECRC University, Jaipur, India 4 Department of Mechanical Engineering, SET, Mody University of Science and Technology, Lakshmangarh, Sikar 332311, Rajasthan, India 5 Department of Mechanical Engineering, Veer Surendra Sai University of Technology, Burla 768018, Odisha, India 6 Department of Mechanical Engineering, Ambo University, Ambo, Ethiopia Correspondence should be addressed to Kuma Gowwomsa Erko; kuma.gowwomsa@ambou.edu.et Received 1 May 2022; Accepted 8 June 2022; Published 21 July 2022 Academic Editor: K. Raja Copyright © 2022 Johny Khajuria et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. In this work, it was observed that using motor oil as the dielectric fluid when producing AA6061/SiCp/B4Cp hybrid composites provided wealth from waste. In these studies, modifications in silicon carbide (SiC) concentration, electrode (copper and brass), current, pulse time, and reinforcing weight percentage were tested. Surface roughness and machined hardness are measured and reported for each removed piece of the material. e bridging effect of silicon carbide particles raised the material removal rate (MRR), while a thorough dielectric fluid flush enhanced the Ra value. On the machined topography, the oil carbon content left dark smudges. Machining performance is superior to that of copper electrode-processed specimens. e MRR, TWR, and Ra all rise as the discharge current and pulse duration increase. Because there is no remelted layer, composites with low machining surface hardness had better finishes. e parameters were optimized using the TOPSIS approach, and it was observed that the efficiency of machining was enhanced by utilizing engine oil by the concentration of 4 gl -1 . Moreover, during machining, optimized parameters like pulse on time 36 seconds, current 4 Amps, and also a brass electrode. 1. Introduction Standard machining methods were useless in composite materials because of the occurrence of strengthening ele- ments [1]. EDM and other unconventional methods of machining are frequently used to attain high precision and accuracy. e key aims of the EDM are MRR, TWR, and Ra. Process variables such as electrical current, pulse on time, and tool material are all significant in determining machining characteristics [2, 3]. Machine tools can be made from a variety of materials, including copper, brass, graphite, Cu-W, and ZiC. e correct tool and workpiece combination must be determined to optimise machining performance [4–6]. It is possible to increase machine output by mixing foreign particles into the dielectric fluid [7]. ere have been several research altering the particle size, powder materials, and powder concentration [8]. Powders including SiC, B 4 C, Al 2 O 3 , and graphite are commonly used in PMEDM. Adding powder particles, according to the majority of findings, reduces the gap growth Hindawi Advances in Materials Science and Engineering Volume 2022, Article ID 2661158, 9 pages https://doi.org/10.1155/2022/2661158