Abstract
Electric discharge machining (EDM) nowadays a major frequently used non-traditional machining processes for machining electrically conductive materials. It can machine even the hardest of known conductive materials; however, this process lacks on the sustainable scale due to its high power consumption, emission of fumes and other harmful waste materials. An operator may develop respiratory problems and skin related infections due to the harmful gaseous emission, odor and chemical nature of dielectrics. Besides this the non-degradable sludge is also a threat to our environment as it can damage our soil and water. In this paper, dielectrics have been studied and reviewed in terms of their developments and alternate. The authors have studied the problems associated with the conventionally used hydrocarbon dielectrics mainly kerosene; power mixed electric discharge machining (PMEDM), a variant of EDM has been studied to understand the effects of adding abrasive powder particles in the dielectrics and its consequences on the improvement of various response parameters along with the environmental effects. Similar kind of study has been performed by using the water-based liquid dielectrics and the gaseous phase dielectrics. Issues related to sustainability and the development in biodegradable dielectrics have also been discussed. Based on these reviews, some future recommendations have been suggested.
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Bhardwaj, S., Jawalkar, C.S., Kant, S. (2023). A Review on Dielectric Issues and Sustainable Alternatives in Electric Discharge Machining. In: Singh, R.P., Tyagi, M., Walia, R.S., Davim, J.P. (eds) Advances in Modelling and Optimization of Manufacturing and Industrial Systems. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-6107-6_6
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