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Materials 2019, 12(3), 522; https://doi.org/10.3390/ma12030522

Ultrasonic Vibration Assisted Electro-Discharge Machining (EDM)—An Overview

1
Department of Mechanical & Aerospace Engineering, Nazarbayev University, Astana 010000, Kazakhstan
2
Department of Mechanical Engineering, Miami University, Oxford, OH 45056, USA
*
Author to whom correspondence should be addressed.
Received: 4 December 2018 / Revised: 23 December 2018 / Accepted: 8 January 2019 / Published: 10 February 2019

Abstract

Many of the industrial processes, including material removal operation for shape generation on the surface of material, exploit the assistance of ultrasonic vibrations. This trend of using ultrasonic vibration in order to improve the process performance is becoming more and more prominent recently. One of the significant applications of this ultrasonic vibration is in the industrial processes such as Electro-discharge machining (EDM), where ultrasonic vibration (UV) is inserted as a medium for enhancing the process performance. Mostly ultrasonic vibration is applied along with the EDM process to increase the efficiency of the process through debris cleansing from the sparking gap. There have been significant changes in ultrasonic assisted technology during the past years. Due to its inherent advantages, ultrasonic assistance infiltrated in different areas of EDM, such as wire cut EDM, micro EDM and die sinking EDM. This article presents an overview of ultrasonic vibration applications in electric discharge machining. This review provides information about modes of UV application, impacts on parameters of performance, optimization and process designing on difficult-to-cut materials. On the bases of available research works on ultrasonic vibration assisted EDM, current challenges and future research direction to improve the process capabilities are identified. Literature suggested improved material removal rate (MRR), increased surface roughness (SR) and tool wear ratio (TWR) due to the application of ultrasonic vibration assisted EDM. However, tool wear and surface roughness can be lessened with the addition of carbon nanofiber along with ultrasonic vibration. Moreover, the application of ultrasonic vibration to both tool and workpiece results in higher MRR compared to its application to single electrode. View Full-Text
Keywords: EDM; ultrasonic vibration; material removal rate; surface roughness; hard to cut materials EDM; ultrasonic vibration; material removal rate; surface roughness; hard to cut materials
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Sabyrov, N.; Jahan, M.P.; Bilal, A.; Perveen, A. Ultrasonic Vibration Assisted Electro-Discharge Machining (EDM)—An Overview. Materials 2019, 12, 522.

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