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Ultrasonic Vibration Assisted Electro-Discharge Machining (EDM)-An Overview
Nurbol Sabyrov1, M P Jahan2, Azat Bilal3
1Department of Mechanical & Aerospace Engineering, Nazarbayev University, Astana 010000, Kazakhstan. nurbol.sabyrov@nu.edu.kz.
Materials (Basel, Switzerland)
|February 13, 2019
Summary
Ultrasonic vibration (UV) enhances electro-discharge machining (EDM) by improving material removal rate and surface finish. Applying UV to both tool and workpiece yields the highest material removal rates.
Area of Science:
- Manufacturing Engineering
- Materials Science
- Mechanical Engineering
Background:
- Ultrasonic vibrations (UV) are increasingly utilized in industrial processes for enhanced performance.
- Electro-discharge machining (EDM) is a key application area where UV integration aims to improve efficiency.
- UV assists EDM primarily by facilitating debris removal from the sparking gap.
Purpose of the Study:
- To provide a comprehensive overview of ultrasonic vibration applications in electro-discharge machining.
- To review the modes of UV application, performance impacts, and optimization strategies in EDM.
- To identify current challenges and future research directions for ultrasonic-assisted EDM.
Main Methods:
- Review of existing research on ultrasonic vibration-assisted EDM.
- Analysis of UV's impact on material removal rate (MRR), surface roughness (SR), and tool wear ratio (TWR).
- Investigation of UV application modes (tool, workpiece, or both) and material effects (e.g., carbon nanofiber addition).
Main Results:
- Ultrasonic vibration-assisted EDM generally improves MRR and SR, though TWR can also increase.
- Incorporating carbon nanofiber with UV can reduce tool wear and improve surface roughness.
- Applying UV to both the tool and workpiece results in a higher MRR compared to single-sided application.
Conclusions:
- Ultrasonic vibration is a valuable enhancement for EDM processes, offering significant improvements in key performance metrics.
- Further research is needed to optimize UV application and material combinations for challenging materials.
- Dual-sided UV application presents a promising avenue for maximizing material removal efficiency in EDM.
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