Abstract
Electrical discharge Machining is a non-traditional machining process in which the material is removed by electrical discharge at short intervals in presence of a dielectric medium. The electrode is moved towards the gap until it becomes so small that the dielectric is ionized due to the immersion of voltage. EDM is mostly used in the die sinking industry to machine hard materials, however, it has lately been utilised to machine light materials like Ti alloy. Dielectric fluid plays an important role in the rate of material removal and the qualities of the machined surface in EDM. This study includes a review of the literature on the usage of dielectric fluid and its influence on the features of electrical discharge machining. Dielectric fluids have properties such as viscosity, good wetting capacity. examples of gaseous dielectric are oxygen, helium, argon. As dielectric fluid performs a very great function in any electrical discharge machining operation, the choice of dielectric medium is an essential consideration for EDM performance. Material removal rate and surface finish is essential response in EDM process and dielectric fluids has effective role of them. That is why dielectric is very important in the EDM process.
Published Version
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