Experimental investigation of WEDM on titanium hybrid composite reinforced with boron powder: a novel approach
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Experimental investigation of WEDM on titanium hybrid composite reinforced with boron powder: a novel approach Soutrik Bose1,2,a
, Titas Nandi2,b
1 Department of Mechanical Engineering, MCKV Institute of Engineering, 243 G.T. Road (N), Liluah,
Howrah, West Bengal 711204, India
2 Department of Mechanical Engineering, Jadavpur University, Kolkata, West Bengal 700032, India
Received: 29 May 2020 / Accepted: 24 August 2020 © Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract This manuscript presents an experimental investigation based on a novel optimization algorithm known as desirable grey relational analysis (DGRA) where desirability function is coupled with grey relational analysis for multi-objective optimization. The experimental and predicted results are compared with multi-criteria decision making method like fuzzy technique for order preference by similarity to ideal solution (FTOPSIS) coupled with fuzzy analytical hierarchy process for criteria weights. Experimental analysis is done on wire electro-discharge machining of a developed novel titanium hybrid composite fabricated by laser engineering net shaping process varying power, time off and peak current as main input process parameters. Response surface methodology is used on Box-Behnken design model (3-factors/3-levels) having output responses like material removal rate, surface roughness, kerf width and over cut. Satisfactory outcomes are obtained and authenticated by confirmatory test. To check and confirm that models are significant, analysis of variance is used. Optimal solution is obtained by desirability approach to achieve the best output response which is further improved by 1.75%, 0.73% and 1.02% when compared with desirability to FTOPSIS, FTOPSIS to DGRA, and desirability to DGRA respectively
1 Introduction Titanium-based composites are advanced hybrid composites which are strong, light and durable with outstandingly good properties like corrosion and fatigue resistant having extensive use in various industries like biomedical applications, automobile and aerospace industries [1]. Titanium is used in diverse medical purpose like, bones, hips, dental problems and knee replacement enucleation and has an assortment of various other surgical instruments [2, 3]. These composites are enormously difficult to be machined by conventional approaches because of the formation of excessive wear due to inferior surface integrity at elevated temperature [4, 5]. Niu et al. [6] used induction skull melting (ISM) reinforcing Ti with TiB2 and obtained improved characteristics in the developed titanium matrix composite
a e-mail: [email protected] (corresponding author) b e-mail: [email protected]
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(TMC). LENS occupies metals and ceramic powders for fabricating precision functional parts. It incorporates a layer-by-layer mechanism for fabrication of components developed from CAD geometry. Here, nozzle deposition techniqu
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