Integration of Fuzzy AHP and Fuzzy TOPSIS Methods for Wire Electric Discharge Machining of Titanium (Ti6Al4V) Alloy Using RSM

Kishan Fuse; Arrown Dalsaniya; Dhananj Modi; Jay Vora; Danil Yurievich Pimenov; Khaled Giasin; Parth Prajapati; Rakesh Chaudhari; Szymon Wojciechowski

doi:10.3390/ma14237408

Materials (Dec 2021)

Integration of Fuzzy AHP and Fuzzy TOPSIS Methods for Wire Electric Discharge Machining of Titanium (Ti6Al4V) Alloy Using RSM

Kishan Fuse,
Arrown Dalsaniya,
Dhananj Modi,
Jay Vora,
Danil Yurievich Pimenov,
Khaled Giasin,
Parth Prajapati,
Rakesh Chaudhari,
Szymon Wojciechowski

Affiliations

Kishan Fuse: Department of Mechanical Engineering, School of Technology, Pandit Deendayal Energy University, Raysan, Gandhinagar 382007, India
Arrown Dalsaniya: Department of Mechanical Engineering, School of Technology, Pandit Deendayal Energy University, Raysan, Gandhinagar 382007, India
Dhananj Modi: Department of Mechanical Engineering, School of Technology, Pandit Deendayal Energy University, Raysan, Gandhinagar 382007, India
Jay Vora: Department of Mechanical Engineering, School of Technology, Pandit Deendayal Energy University, Raysan, Gandhinagar 382007, India
Danil Yurievich Pimenov: Department of Automated Mechanical Engineering, South Ural State University, 454080 Chelyabinsk, Russia
Khaled Giasin: School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK
Parth Prajapati: Department of Mechanical Engineering, School of Technology, Pandit Deendayal Energy University, Raysan, Gandhinagar 382007, India
Rakesh Chaudhari: Department of Mechanical Engineering, School of Technology, Pandit Deendayal Energy University, Raysan, Gandhinagar 382007, India
Szymon Wojciechowski: Faculty of Mechanical Engineering and Management, Poznan University of Technology, 60-965 Poznan, Poland

DOI: https://doi.org/10.3390/ma14237408
Journal volume & issue: Vol. 14, no. 23
p. 7408

Abstract

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Titanium and its alloys exhibit numerous uses in aerospace, automobile, biomedical and marine industries because of their enhanced mechanical properties. However, the machinability of titanium alloys can be cumbersome due to their lower density, high hardness, low thermal conductivity, and low elastic modulus. The wire electrical discharge machining (WEDM) process is an effective choice for machining titanium and its alloys due to its unique machining characteristics. The present work proposes multi-objective optimization of WEDM on Ti6Al4V alloy using a fuzzy integrated multi-criteria decision-making (MCDM) approach. The use of MCDM has become an active area of research due to its proven ability to solve complex problems. The novelty of the present work is to use integrated fuzzy analytic hierarchy process (AHP) and fuzzy technique for order preference by similarity to ideal situation (TOPSIS) to optimize the WEDM process. The experiments were systematically conducted adapting the face-centered central composite design approach of response surface methodology. Three independent factors—pulse-on time (Ton), pulse-off time (Toff), and current—were chosen, each having three levels to monitor the process response in terms of cutting speed (VC), material removal rate (MRR), and surface roughness (SR). To assess the relevance and significance of the models, an analysis of variance was carried out. The optimal process parameters after integrating fuzzy AHP coupled with fuzzy TOPSIS approach found were Ton = 40 µs, Toff = 15 µs, and current = 2A.

Published in Materials

ISSN: 1996-1944 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Technology: Engineering (General). Civil engineering (General); Science: Natural history (General): Microscopy; Science: Physics: Descriptive and experimental mechanics
Website: http://www.mdpi.com/journal/materials/

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