Abstract:
Owing to the fact of continuous discharges in RC circuit based 𝜇-EDM process, it is indeed
very difficult to analyse difficult-to-control single discharge pulse. This work is thus aimed to develop
an innovative technique for generating single discharge in the process. An electrical circuit, parallel to
the existing discharge circuit of 𝜇-EDM, has been integrated in-house for the purpose and verified for
its applicability over a wide range of metal alloys. For example, single crater diameters of
approximately 7𝜇m, 10𝜇m and 18𝜇m have been achieved for stainless steel, Inconel and brass
respectively at minimum energy input. The single discharge generatorhas been developed expecting it
would be helpful in gathering information such as volume removal by each discharge which will
definitely lead to development of a robust thermal model for material removal in 𝜇-EDM
