EFFECT OF THE TOOL SURFACE AREA AND WORKPIECE VIBRATION ON THE μEDM PERFORMANCE

Deepak Rajendra Unune
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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, UK2Department of Mechanical-Mechatronics Engineering, The LNM Institute of Information Technology, Jaipur 302031, Rajasthan, India

Surface Review and Letters (SRL), 2021, vol. 28, issue 10, 1-9

Abstract: This work investigates the influence of tool surface area (TSA) on the average surface roughness (Ra), tool wear rate (TWR) and material removal rate (MRR) in the micro-electrical discharge machining (μEDM). The effects of three different TSAs were investigated at three different discharge energy settings. It was observed that the TSA had substantial influence on μEDM performance owing to scaling effect. Therefore, the low-frequency workpiece vibration was applied to improve the μEDM 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 μEDMed surfaces.

Keywords: Micro-electrical discharge machining; tool surface area; vibration frequency; MRR; tool wear; surface roughness (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1142/S0218625X21500839

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