STUDY ON THE INFLUENCE OF ZINC-COATED WIRE MATERIAL ON 3D PROFILE MACHINING OF INCONEL 825 ALLOY USING WEDM PROCESS
S. Arulselvan,
D. Ravindran,
G. Selvakumar and
A. Arul Marcel Moshi
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S. Arulselvan: Department of Mechanical Engineering, Unnamalai Institute of Technology, Kovilpatti 628502, Tamil Nadu, India
D. Ravindran: ��Department of Mechanical Engineering, Thamirabharani Engineering College, Tirunelveli 627358, Tamil Nadu, India
G. Selvakumar: ��Department of Mechanical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603110, Tamil Nadu, India
A. Arul Marcel Moshi: �Department of Mechanical Engineering, National Engineering College, Kovilpatti 628503, Tamil Nadu, India
Surface Review and Letters (SRL), 2022, vol. 29, issue 11, 1-11
Abstract:
The experimental analysis carried out in this paper aimed at the selection of optimal machining conditions for the 3D profile machining of Inconel 825 alloy using Wire Electrical Discharge Machining (WEDM). It was noticed that the 3D profile machining of Inconel 825 alloy using WEDM process has not been performed and reported so far by the researchers in this domain to the best of our knowledge. As the machining of Inconel 825 alloy is difficult using the conventional machining processes, nontraditional machining is generally used. As the material is conductive, the WEDM process is suitable to machine this material. The effects of input factors such as wire material, pulse on-time, pulse off-time, peak current, wire tension and gap voltage on the material removal rate (MRR), surface roughness (SR) and dimensional shift (DS) have been investigated using L18 mixed-level orthogonal array of experiments. The DS value for every machining condition has been predicted and inputted into the CNC system as the wire offset value to enhance the dimensional accuracy of the product. The parametric analysis has been done by Minitab software. Analysis of variance (ANOVA) has been used to find the significant parameters affecting surface quality. The regression equations have also been formulated to study the adequacy of the model. Multi-response optimization based on the Gray Relational Analysis has been employed and the results that optimize the MRR and SR simultaneously have been suggested. SEM images have been taken on the machined surfaces to compare the surface finish on the specimens.
Keywords: WEDM; Inconel 825; ANOVA; GRA; SEM (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:29:y:2022:i:11:n:s0218625x22501517
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DOI: 10.1142/S0218625X22501517
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