Examination of The Process Parameters for Machining Nimonic Alloy 75 on WEDM with A Cryogenically Treated Tool

  • Authors

    • Saidulu G Research scholar, Dept. of Mechanical Engg., JNTU, Hyderabad, India, 500085
    • Prasanna P Dept. of Mechanical Engg., JNTU, Hyderabad, India, 500085
    https://doi.org/10.14419/m3171r80

    Received date: August 1, 2025

    Accepted date: September 5, 2025

    Published date: September 14, 2025

  • Cryogenically treated brass wire; Kerf width; Surface Roughness; Taguchi orthogonal array; WEDM

  • Abstract

    This investigative analysis examines how various process variables affect Surface Roughness (Ra) and Kerf Width (KW) during the WEDM process. The experiments used Nimonic Alloy 75 sheets as the raw material and tested two types of tool electrodes: cryogenically treated (CT) brass wires and non-cryogenically treated (NCT) brass wires. The main control variables evaluated in this study included the type of tool electrode, wire feed rate (WF), wire tension (WT), Ton, and Toff. The thickness of the Nimonic Alloy 75 and the diameter of the wire (0.25 mm) were kept constant throughout the operation. The design of experimentation was taken based on the Taguchi L9 Orthogonal Array (OA), and ANOVA was utilized to evaluate Ra, KW, and the microstructures of the workpieces, which were examined under a Scanning Electron Microscope for both types of electrodes. The results indicated that the optimized values for Ra and KW of the machined parts were 4.78 µm and 0.276 mm, respectively, when using the cryogenically treated tool, as it yielded better results compared to the non-cryogenically treated tool.

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  • How to Cite

    G, S. ., & P, P. . (2025). Examination of The Process Parameters for Machining Nimonic Alloy 75 on WEDM with A Cryogenically Treated Tool. International Journal of Basic and Applied Sciences, 14(5), 478-485. https://doi.org/10.14419/m3171r80