| 摘要 |
The wire electric discharge machine comprises a machining power source with variable output voltage, a first power supply path through which a discharge pulse current is supplied from the power source by applying a voltage at machining gap to cause electric discharge, and a second power supply path through which a wire electrode cutting current is supplied from the power source to the wire electrode, and also comprises a switching device to switch the first and second power supply paths. Discharge pulse current is supplied through the first power supply path when machining the workpiece, whereas wire cutting current is supplied when cutting the wire electrode. |
