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Ultrasonic assisted EDM: Effect of the workpiece vibration in the machining characteristics of FW4 Welded Metal

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Abstract

This paper presents the results of experimental studies carried out to conduct a comprehensive investigation on the influence of ultrasonic vibration of workpiece on the characteristics of Electrical Discharge Machining (EDM) process of FW4Welding Metal in comparison with the conventional EDM process. The studied process characteristics included the material removal rate (MRR), tool wear ratio (TWR), and surface roughness (R a and R max) of the workpiece after the EDM and ultrasonic assisted EDM (US-EDM) processes. The experiments performed under the designed full factorial procedure and the considered EDM input parameters included pulse on-time and pulse current. The experimental results show that in short pulse on-times, material removal rate in the USEDM process is approximately quadruple than that of the EDM process. On the contrary, in the long pulse on-times, ultrasonic vibration of workpiece leads to the reduction in the MRR. On the other hand, in short pulse on-times, the TWR in the US-EDM process is lower than that of in the EDM process, and this condition reverses with increase in the pulse on-time. Furthermore, the surface roughness of the workpiece machined by EDM process is slightly lower than that of applied to the US-EDM process.

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Authors and Affiliations

  1. Department of mechanical Engineering, University of Tabriz, Tabriz, Iran

    Mohammadreza Shabgard, Hamed Kakolvand, Mirsadegh Seyedzavvar & Ramin Mohammadpour Shotorbani

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  1. Mohammadreza Shabgard
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  2. Hamed Kakolvand
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  3. Mirsadegh Seyedzavvar
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  4. Ramin Mohammadpour Shotorbani
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Correspondence to Mohammadreza Shabgard.

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Shabgard, M., Kakolvand, H., Seyedzavvar, M. et al. Ultrasonic assisted EDM: Effect of the workpiece vibration in the machining characteristics of FW4 Welded Metal. Front. Mech. Eng. 6, 419–428 (2011). https://doi.org/10.1007/s11465-011-0246-7

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  • DOI: https://doi.org/10.1007/s11465-011-0246-7

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