High-Speed Electrical Discharge Machining By Using a 5-DOF Controlled Maglev Local Actuator

Abstract

The objective 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 1mm diameter holes using the maglev local 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 maglev local actuator was improved as the bandwidth of the actuator and control gains of the EDM system increased.