Abstract
AbstractThis paper focuses on the current machining process initiatives, carried out by various researchers relevant to the environmental aspects, thereafter predicting EDM performances. electrical discharge machining (EDM) is widely used unconventional machining method, because of its ability to process very hard material with precision. In thermo-electric process, control spark generation between electrodes causes material removal; however, application of hydrocarbon oil based dielectric fluid is an issue of environmental disruption. Replacement of dielectric to rectify the problem is one of the main concerns in EDM research. This paper highlights dry-EDM, near-dry EDM and EDM in water, conceived as an environment friendly alteration in the oil EDM process referred as a green EDM process. The work provides a thorough review of dry, near-dry EDM and EDM in water as a process, where the target is to endeavor dielectric fluids which could be the alternative to replace hydrocarbon oil. It is perceived that ...
Highlights
Electrical discharge machining (EDM) involves discharge of the spark between electrically conductive workpiece and tool electrode to erode the work material
The results show an enhancement in the material removal rate (MRR) for both the oxygen-mixed EDM and the cryogenically cooled workpiece EDM
The results showed with water as dielectric (75% tap water and 25% deionized water) one could achieve, the maximum MRR and less tool wear rate (TWR)
Summary
Electrical discharge machining (EDM) involves discharge of the spark between electrically conductive workpiece and tool electrode to erode the work material. The sparking in EDM is controlled by DC pulses while application of direct current ionizes dielectric fluid within the spark gap (Benedict, 1987). EDM eradicates issues of induced mechanical stresses and vibration while machining, as it ABOUT THE AUTHOR. Singh is a PhD research scholar at IIT (ISM) Dhanbad and is currently working in the field of gas assisted EDM. He has obtained his Masters in Mechanical Engineering and BTech in Mechanical engineering from Delhi College of Engineering, Delhi. His research interests are sustainable manufacturing, micro manufacturing and non-conventional machining processes
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