Electrical discharge machining or EDM has become a go-to technology of many industries, the existence of which has been prevailing for a long time. The process of electrical discharge machining uses an electrical current passed between the workpiece and electrode that are separated with a dielectric liquid.

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Upon applying high voltage, this liquid is ionized, thereby transforming into an electrical conductor and eroding the workpiece after releasing spark discharge. Such a process then shapes the workpiece into a final shape.

Sinker electrical discharge machining is one of the forms of electrical discharging machining designed for reliability and high precision.…