Desired performance of the electrical discharge machining is achieved through control of the discharge pulses, that is, by controlling the method and duration of the energy supply and the distance between the electrodes.
Wire-cut discharge machining
1. Homogeneously generating a high peak voltage of 1000 A or more within a period of a microsecond (TM circuit)
2. An electrolysis free power unit that prevents the electrolysis by the machining fluid and power supply (BS circuit)
3. A power circuit for efficient intermediate finishing (ALPM circuit)
4. A control power circuit for high-speed finish machining and pulse control for the machining of a corner (HF circuit)
5. Finishing circuit for achieving a surface finish Ry on the order of several tenths of a micrometer (Super-PIKA circuit)
6. An optional special circuit that minimizes the chipping of the machined surface
Die-sinking electrical discharge machining
Accurately and repetitively applying currents of one to several amperes each during one to several microseconds (SVC circuit)
Homogeneously and repetitively applying comparatively long pulse currents each during several tens of microseconds to several milliseconds (no-electrode-consumption circuit)
Achieving mirror polishing (PIKA circuit)
Common
Controlling machining pitch on the order of 0.1 μm using K-SMC capable of calculating distance to an accuracy of 10 nm (quickly reactive linear motor servo control circuit) |
