Abstract
Machining of the nickel-based alloy is very demanding due to its extreme mechanical properties, for example, higher fatigue strength, better corrosion and creep resistance feature, substantial work hardening capability, and appreciable tensile and shear strength. Owing to these properties, the selection of machining parameters is a major challenge for modern machining industries. Therefore, the present experimental work is carried out to select the best parametric combination of the wire electrical discharge machining (WEDM) machine for reducing machining cost and human effort. The Trapezoidal Interval Type-2 fuzzy number (T2FS) integrated Analytical Hierarchy Process (AHP)-based Additive Ratio Assessment (ARAS) method is used for selecting the best WEDM process parameters of Inconel-800 superalloy. Finally, the results were compared with some existing multi-criteria decision-making methods to confirm the validity of the adopted method. The comparison shows that Type-2 Fuzzy AHP-ARAS synergy can help to formulate the problem and facilitate the assessment and ranking of WEDM process parameters when multiple criteria are jointly considered.
Highlights
Received: 3 December 2020 Accepted: 24 December 2020 Published: 27 December 2020Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.Owing to their extreme mechanical properties, for instance high strength and creepcorrosion resistance, chromium-nickel-based alloys possess very dull machinability [1,2]
The Trapezoidal Interval Type-2 fuzzy number (T2FS) integrated Analytical Hierarchy Process (AHP)based Additive Ratio Assessment (ARAS) method is used for selecting the best wire electrical discharge machining (WEDM) process parameters of Inconel-800 superalloy
This paper presents the first integrated TrI2N based AHPARAS method, there are many entrenched TrI2N-based multi-criteria decision making (MCDM) approaches
Summary
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations Owing to their extreme mechanical properties, for instance high strength and creepcorrosion resistance, chromium-nickel-based alloys possess very dull machinability [1,2]. Wire electrical discharge machining is a technological advancement in non-traditional machining processes, where traveling wear removes the materials from the workpiece. This non-conventional machining is very useful to cut electrically conductive materials by using an electro-thermal mechanism [6,7,8]. As the dielectric fluid used during machining is ionized between the gap of wire and workpiece material, a path has been created for each discharge. Particles were removed by the flushing of dielectric fluids [11,12,13,14]
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