Abstract
The sinking electrical discharge machining with the ultrasonic vibration apparatus was examined on the cemented carbide material using a conventional EDM system. The ultrasonic vibration apparatus was modified the unit to be available in the longitudinal and the transverse motion independently. The effect of vibration direction was evaluated from the point of view of the removal rate, the surface roughness and the wear ratio. As the results, the removal rate and the surface roughness were improved with operating the combined longitudinal and the transverse motion.
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