Article: Single and multi-response optimisations of EDM parameters for processing of hybrid Al/ (SiC + ZrO2 + NiTi)-MMC Journal: International Journal of Machining and Machinability of Materials (IJMMM) 2023 Vol.25 No.3/4 pp.243 - 265 Abstract: This paper presents the experimentally investigated results during fabrication and processing via electrical discharge machining (EDM) of hybrid Al/ (SiC + ZrO2 + NiTi)-MMC. Preliminary experiments were performed to disclose the operative parameters and their range for effective machining. Detail experiments were carried out based on Taguchi's L18 (21 x 37) mixed orthogonal array. The single and multi-response optimisations were performed using Taguchi and grey relational analysis (GRA) approach. Proposed appropriate mathematical relation for material removal rate (MRR), tool wear rate (TWR) and surface roughness heights (SRHs: Ra and Rt) were used to set the parameters and predict expected output in advance. The confirmation test results reveal that the improvement of responses by parametric optimisation are 58.89% in MRR, -49.48% in TWR, 16% and 9.89% in SRHs. This paper explained the combined effect of process parameters on the output characteristics through different 3D graphs. SEM analysis gives the actual condition of the machined surface and recast layer formed. Inderscience Publishers - linking academia, business and industry through research

Title: Single and multi-response optimisations of EDM parameters for processing of hybrid Al/ (SiC + ZrO₂ + NiTi)-MMC

Authors: Saurabh Kumar Maurya; Sayon Pramanik; Alakesh Manna

Addresses: Department of Mechanical Engineering, Punjab Engineering College (Deemed to be University), Chandigarh, India ' Department of Architecture, National Institute of Technology Raipur, Chhattisgarh, India ' Department of Mechanical Engineering, Punjab Engineering College (Deemed to be University), Chandigarh, India

Abstract: This paper presents the experimentally investigated results during fabrication and processing via electrical discharge machining (EDM) of hybrid Al/ (SiC + ZrO₂ + NiTi)-MMC. Preliminary experiments were performed to disclose the operative parameters and their range for effective machining. Detail experiments were carried out based on Taguchi's L18 (2¹ x 3⁷) mixed orthogonal array. The single and multi-response optimisations were performed using Taguchi and grey relational analysis (GRA) approach. Proposed appropriate mathematical relation for material removal rate (MRR), tool wear rate (TWR) and surface roughness heights (SRHs: R_a and R_t) were used to set the parameters and predict expected output in advance. The confirmation test results reveal that the improvement of responses by parametric optimisation are 58.89% in MRR, -49.48% in TWR, 16% and 9.89% in SRHs. This paper explained the combined effect of process parameters on the output characteristics through different 3D graphs. SEM analysis gives the actual condition of the machined surface and recast layer formed.

Keywords: hybrid Al-MMC; electrical discharge machining; EDM; material removal rate; MRR; tool wear rate; TWR; grey relational analysis; GRA; recast layer.

DOI: 10.1504/IJMMM.2023.136038

International Journal of Machining and Machinability of Materials, 2023 Vol.25 No.3/4, pp.243 - 265

Received: 20 May 2022
Accepted: 23 Aug 2022
Published online: 12 Jan 2024 *

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Title: Single and multi-response optimisations of EDM parameters for processing of hybrid Al/ (SiC + ZrO2 + NiTi)-MMC

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Title: Single and multi-response optimisations of EDM parameters for processing of hybrid Al/ (SiC + ZrO₂ + NiTi)-MMC