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Feasibility investigation of neem oil as a dielectric for electrical discharge machining

  • Shirsendu DasEmail author
  • Swarup Paul
  • Biswanath Doloi
ORIGINAL ARTICLE
  • 34 Downloads

Abstract

This article has been addressed various sustainability aspects of EDM and introduced transesterified neem as a green dielectric. Here, the machining is performed at 4–16 A of current, 50–250 μs of pulse on time, 10–50 μs of pulse off time, and 20-50 V of gap voltage using both the kerosene and neem as a dielectric medium. The comparative assessment of the obtained responses claims that the neem dielectric exhibits 22% more removal rate and 17% less surface roughness than kerosene. Apart from these, the impact of each dielectric on the texture of processed surfaces has been assessed with the help of the microscopic images captured with a scanning electron microscope (SEM). Finally, the sustainability evaluation is performed to check the feasibility of the neem oil as a reliable dielectric of EDM. It is observed that the neem dielectric is capable of ensuring comparatively fine surface textures due to the repeated overlapping of the radially extended craters and consumes less time to attain the targeted removal depth (RD). Therefore, based on the results, the neem dielectric can be recommended as a potent and reliable alternative of conventional kerosene.

Keywords

Dielectric Fluid Neem oil MRR SR Sustainability evaluation 

Notes

Acknowledgments

The authors are really thankful to Dr. Syed Arshad Hussain and Mr. Mispaur Rahaman of Central Instrumentation Centre, Tripura University for their support and help during the surface characterization

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.Production Engineering Department NITAgartalaIndia
  2. 2.Production Engineering DepartmentJadavpur UniversityKolkataIndia

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