| 摘要 |
<p>PROBLEM TO BE SOLVED: To avoid that the time during which electric discharge machining is generated stably among electrodes varies depending on the number of actually-discharging wires even in a case that plural wires are electrified collectively.SOLUTION: A wire electric discharge machining device, in which a work-piece is made into slices with spacings of wires arranged in parallel by electric discharge machining, comprises plural main rollers which make the wires circle so as to travel in the same direction, a power-supply terminal which supplies machining electric power for electric discharge machining to the plural circling wires collectively, a work-piece feed part which feeds the work-piece to the direction approaching the circling wires, and a power source line which supplies machining electric power for electric discharge machining through electrifying the power-supply terminal and the work-piece. The power-supply terminal and the work-piece feed part are arranged inside of the wires circling around the plural main rollers, and a power source circuit for machining electric power using the power source line is connected to the power-supply terminal and the work-piece feed part respectively.</p> |
