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EFFECT OF THE TOOL SURFACE AREA AND WORKPIECE VIBRATION ON THE $μ$ EDM PERFORMANCE

DEEPAK RAJENDRA UNUNE

Department of Materials Science and Engineering, INSIGNEO Institute for in Silico Medicine, The University of Sheffield, Sir Robert Hadfield Building, Mappin Street, Sheffield S1 3JD, UK

Department of Mechanical-Mechatronics Engineering, The LNM Institute of Information Technology, Jaipur 302031, Rajasthan, India

E-mail Address: d.unune@sheffield.ac.uk

E-mail Address: deepunune@gmail.com

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https://doi.org/10.1142/S0218625X21500839Cited by:3 (Source: Crossref)

Abstract

This work investigates the influence of tool surface area (TSA) on the average surface roughness ( $R_{a})$ , tool wear rate (TWR) and material removal rate (MRR) in the micro-electrical discharge machining ( $μ$ EDM). The effects of three different TSAs were investigated at three different discharge energy settings. It was observed that the TSA had substantial influence on $μ$ EDM performance owing to scaling effect. Therefore, the low-frequency workpiece vibration was applied to improve the $μ$ EDM performance. The surface topography of machined surfaces was examined using scanning electron microscopy to disclose the effect of TSA as well as vibration frequency on $μ$ EDMed surfaces.

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