High-speed Electrical Discharge Machining with a 5-DOF Controlled Maglev Actuator

Abstract

The object of this study is to realize high-speed electrical discharge machining (EDM) using a wide-bandwidth, high-precision, millimeter-stroke, 5-DOF controlled maglev local actuator. In this paper, we report on the EDM of small holes using this actuator, and discuss the relationships between machining speed, the bandwidth of the actuator and the control gain of the EDM system. The experimental results show that the machining speed using the actuator was improved as the bandwidth of the actuator and control gain of the EDM system increased.