Research Article
Improving Sustainability of EDM Sector by Implementing
Unconventional Competitive Manufacturing Approach
K. G Sagar,
1
P. K. Anjani,
2
Manju Shree Raman,
3
N. S. M. P. Latha Devi,
4
Kamakshi Mehta ,
5
Mg Jose Luis Arias Gonzales,
6
Nellore Manoj Kumar,
7
and Venkatesan S
8
1
Department of Mechanical Engineering, Cambridge Institute of Technology, Bangalore, Karnataka 560036, India
2
Department of Management Studies, Sona College of Technology, Salem, Tamil Nadu 636005, India
3
Department of Management, College of Business & Economics, Debre Tabor University, East Africa,Postal Code: 272,
Debre Tabor, Ethiopia
4
Department of Engineering Physics, Koneru Lakshmaiah Education Foundation (KLEF), Vaddeswaram Pincode: 522 302,
Guntur, Andhra Pradesh, India
5
Amity College of Commerce, Amity University, Ashiana Angan,Pincode: 301019, Bhiwadi, Haryana, India
6
Department of Business, University of British Columbia, Arequipa, Postal Code: 054, Peru
7
Department of Physics, SCSVMV Deemed Univeristy, Enathur 631561, Kanchipuram, Tamil Nadu, India
8
School of Mechanical Engineering, College of Engineering and Technology, Wachemo University, Hosaena, Ethiopia
Correspondence should be addressed to Venkatesan S; profsvenkatesan@gmail.com
Received 6 May 2022; Accepted 23 June 2022; Published 11 July 2022
Academic Editor: Pudhupalayam Muthukutti Gopal
Copyright © 2022 K. G Sagar 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 research work, an attempt was made to machine the titanium (Ti6Al4V) alloy utilizing electric discharge machining
technique. e distinct process parameters and its impact on the machining performance were identified using the cause-and-
effect diagram (CED). e key process parameters identified by CED diagram were current, pulse on time (Ton), aluminium oxide
(Al
2
O
3
) powder concentration, and gap distance; experiments were conducted by varying the process parameters, experimental
runs were designed using the Taguchi mixed orthogonal array. e experimental results revealed that improvement in material
removal rate (MRR) was due to the bridging effect; reduction in tool wear rate (TWR) owing to the expansion of spark gap and
enhancement in the surface roughness (Ra) was due to the complete flushing of machined debris. e interaction impact was
analysed using the contour plot and with the aid of mathematical modelling experimental fits that were identified and the results
were validated utilizing the sensitivity analysis. e obtained results were optimized using the technique for order of preference by
similarity to ideal solution (TOPSIS) optimization technique.
1. Introduction
e life time of the product depends on the quality of the
component used to assemble it. e manufacture of main
landing gears from composites using conventional machining
processes has distinguishing critical to excellent attributes [1].
e attributes include excessive tool wear due to the presence
of abrasive particles in the composites, formation of build-up
edges, and exhibiting poor surface as the removal of particles
leaves the pits on the surface [2–4]. To resolve this issue, the
composites were manufactured using the unconventional
machining (UCM) technique, of which electric discharge
machining (EDM) was preferred for producing components
with utmost quality [5]. e EDM input variable which
controls the outcome of the process includes current, spark
gap, powder concentration, cycle time, and tool materials
[6–8]. Tuning the parameters to the ideal level results in the
manufacturing of high-quality items; failing to do so results in
faulty products [9]. e route cause for the distinct defects
was identified using the CED diagram. e CED, also known
Hindawi
Advances in Materials Science and Engineering
Volume 2022, Article ID 6164599, 10 pages
https://doi.org/10.1155/2022/6164599