Parametric Optimization of Powder-Mixed EDM of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/Cenosphere Hybrid Composites Using Fuzzy Logic: Analysis of Mechanical, Machining, Microstructural, and Morphological Characterizations

This research focuses on a comprehensive exploration of the experimental and mechanical aspects of the electrical discharge machining (EDM) process, specifically targeting the machining characteristics of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/cenosphere hybrid composites. The...

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Main Authors: G. Rajkumar, M. Saravanan, A. Bovas Herbert Bejaxhin, Shubham Sharma, Shashi Prakash Dwivedi, Rajeev Kumar, Sunpreet Singh
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Journal of Composites Science
Subjects:
Online Access:https://www.mdpi.com/2504-477X/7/9/380
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author G. Rajkumar
M. Saravanan
A. Bovas Herbert Bejaxhin
Shubham Sharma
Shashi Prakash Dwivedi
Rajeev Kumar
Sunpreet Singh
author_facet G. Rajkumar
M. Saravanan
A. Bovas Herbert Bejaxhin
Shubham Sharma
Shashi Prakash Dwivedi
Rajeev Kumar
Sunpreet Singh
author_sort G. Rajkumar
collection DOAJ
description This research focuses on a comprehensive exploration of the experimental and mechanical aspects of the electrical discharge machining (EDM) process, specifically targeting the machining characteristics of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/cenosphere hybrid composites. The aim is to optimize the process parameters for enhanced machining performance through a combination of testing, optimization, and modelling methodologies. The study examines the effects of key EDM variables—peak current, pulse on time, and pulse off time—on critical output responses: surface roughness (Ra), electrode wear rate (EWR), and material removal rate (MRR). Leveraging an L9 Taguchi orthogonal array experimental design, the impact of controllable factors on these responses is analysed. An integrated approach utilizing MATLAB’s logic toolbox and Mamdani’s technique is employed to model the EDM process, and a multiple-response performance index is calculated using fuzzy logic theory, enabling multiobjective optimizations. Furthermore, a mechanical behaviour evaluation of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/cenosphere hybrid composites is performed through mechanical testing, with a comparison between experimental machining results and predicted values. Scanning electron microscopy (SEM) images reveal the presence of filler reinforcements within the base alloy, displaying an improved microstructure and uniform reinforcement dispersion. An X-ray diffraction (XRD) analysis confirms the major elemental constituents—aluminium, silicon, and magnesium—in the hybrid composites. A microstructural analysis of the hybrid metal matrix composites (MMCs) prepared for EDM showcases closely packed reinforcement structures, circular ash-coloured spots indicating silicon and nitrates, and a fine dispersion of cenosphere reinforcement particles. The study’s outcomes demonstrate a promising application potential for these hybrid composites in various fields.
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spelling doaj.art-e2f856a7b98441e9a3c3cb119617f3a02023-11-19T11:22:36ZengMDPI AGJournal of Composites Science2504-477X2023-09-017938010.3390/jcs7090380Parametric Optimization of Powder-Mixed EDM of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/Cenosphere Hybrid Composites Using Fuzzy Logic: Analysis of Mechanical, Machining, Microstructural, and Morphological CharacterizationsG. Rajkumar0M. Saravanan1A. Bovas Herbert Bejaxhin2Shubham Sharma3Shashi Prakash Dwivedi4Rajeev Kumar5Sunpreet Singh6Annai College of Engineering and Technology, Kumbakonam 612503, Tamil Nadu, IndiaPonjesly College of Engineering, Parvathipuram, Nagercoil 629003, Tamil Nadu, IndiaSaveetha School of Engineering, SIMATS, Chennai 602105, Tamil Nadu, IndiaDepartment of Mechanical Engineering, University Centre for Research and Development (UCRD), Chandigarh University, Mohali 140413, Punjab, IndiaDepartment of Mechanical Engineering, Lloyd Institute of Engineering & Technology, Knowledge Park II, Greater Noida 201306, Uttar Pradesh, IndiaSchool of Mechanical Engineering, Lovely Professional University, Phagwara 144411, Punjab, IndiaDepartment of Mechanical Engineering, University Centre for Research and Development (UCRD), Chandigarh University, Mohali 140413, Punjab, IndiaThis research focuses on a comprehensive exploration of the experimental and mechanical aspects of the electrical discharge machining (EDM) process, specifically targeting the machining characteristics of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/cenosphere hybrid composites. The aim is to optimize the process parameters for enhanced machining performance through a combination of testing, optimization, and modelling methodologies. The study examines the effects of key EDM variables—peak current, pulse on time, and pulse off time—on critical output responses: surface roughness (Ra), electrode wear rate (EWR), and material removal rate (MRR). Leveraging an L9 Taguchi orthogonal array experimental design, the impact of controllable factors on these responses is analysed. An integrated approach utilizing MATLAB’s logic toolbox and Mamdani’s technique is employed to model the EDM process, and a multiple-response performance index is calculated using fuzzy logic theory, enabling multiobjective optimizations. Furthermore, a mechanical behaviour evaluation of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/cenosphere hybrid composites is performed through mechanical testing, with a comparison between experimental machining results and predicted values. Scanning electron microscopy (SEM) images reveal the presence of filler reinforcements within the base alloy, displaying an improved microstructure and uniform reinforcement dispersion. An X-ray diffraction (XRD) analysis confirms the major elemental constituents—aluminium, silicon, and magnesium—in the hybrid composites. A microstructural analysis of the hybrid metal matrix composites (MMCs) prepared for EDM showcases closely packed reinforcement structures, circular ash-coloured spots indicating silicon and nitrates, and a fine dispersion of cenosphere reinforcement particles. The study’s outcomes demonstrate a promising application potential for these hybrid composites in various fields.https://www.mdpi.com/2504-477X/7/9/380EDMAl hybrid compositestestingDoEgrey analysisMATLAB
spellingShingle G. Rajkumar
M. Saravanan
A. Bovas Herbert Bejaxhin
Shubham Sharma
Shashi Prakash Dwivedi
Rajeev Kumar
Sunpreet Singh
Parametric Optimization of Powder-Mixed EDM of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/Cenosphere Hybrid Composites Using Fuzzy Logic: Analysis of Mechanical, Machining, Microstructural, and Morphological Characterizations
Journal of Composites Science
EDM
Al hybrid composites
testing
DoE
grey analysis
MATLAB
title Parametric Optimization of Powder-Mixed EDM of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/Cenosphere Hybrid Composites Using Fuzzy Logic: Analysis of Mechanical, Machining, Microstructural, and Morphological Characterizations
title_full Parametric Optimization of Powder-Mixed EDM of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/Cenosphere Hybrid Composites Using Fuzzy Logic: Analysis of Mechanical, Machining, Microstructural, and Morphological Characterizations
title_fullStr Parametric Optimization of Powder-Mixed EDM of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/Cenosphere Hybrid Composites Using Fuzzy Logic: Analysis of Mechanical, Machining, Microstructural, and Morphological Characterizations
title_full_unstemmed Parametric Optimization of Powder-Mixed EDM of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/Cenosphere Hybrid Composites Using Fuzzy Logic: Analysis of Mechanical, Machining, Microstructural, and Morphological Characterizations
title_short Parametric Optimization of Powder-Mixed EDM of AA2014/Si<sub>3</sub>N<sub>4</sub>/Mg/Cenosphere Hybrid Composites Using Fuzzy Logic: Analysis of Mechanical, Machining, Microstructural, and Morphological Characterizations
title_sort parametric optimization of powder mixed edm of aa2014 si sub 3 sub n sub 4 sub mg cenosphere hybrid composites using fuzzy logic analysis of mechanical machining microstructural and morphological characterizations
topic EDM
Al hybrid composites
testing
DoE
grey analysis
MATLAB
url https://www.mdpi.com/2504-477X/7/9/380
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