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ABSTRACT
With the implementation of ISO 14000 standards for environmental regulations, numerous manufacturing industries are implementing newer concepts like 6 R, i.e. Redesign, Remanufacturing, Recycle, Reuse, Reduce, and Recover. This paper focuses on understanding the various aspects of Electric Discharge Machining (EDM) that check its environmental friendliness and sustainability through a comprehensive literature review. This includes looking through the work related to bio-dielectrics as well as process parameters that compute energy consumption. The first section of this manuscript provides a succinct overview of using bio dielectric to make EDM more environmentally friendly. The review suggests that the problems of environmental pollution in the form of aerosol emission, unsustainability and cost of conventional EDM dielectric can be easily solved by using various bio-dielectrics. The second section focuses on reducing energy consumption by optimising electrical and non-electrical process parameters as well as by using various hybrid EDM. Recent scientific papers have been critically reviewed mentioning their significance and important contribution. EDM machining of some modern materials like hybrid Metal Matrix Composites (MMCs), ceramic and nanomaterial is also summarised. Finally, the conclusion and direction for future work have been proposed keeping in view the gaps identified in the existing literature.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Correction Statement
This article has been republished with minor changes. These changes do not impact the academic content of the article.