| 摘要 |
PURPOSE:To enable absorbing of processing liquid easily even in simultaneous electric discharge machining for multiple works by a method wherein the upper surface of a work is covered with a conductive thin film and the processing liquid is allowed to run only at a place or places to be processed. CONSTITUTION:Electric discharge machining is conducted by bringing an electrode 1 close to a work 2. At this time, by the operation of a suction pump 4 a negative pressure is given in a suction vessel 5 and processing liquid is drawn into the suction vessel 5. In an electric discharge machining process, the upper surface of the work 2 or the reverse side of the suction vessel 5 is covered with a conductive thin film 7 to draw the processing liquid easily. In this way, after the electric discharge machining has been completed at the 1st processing station, a controller 12 is controlled. By the signals from the controller, each drive motor 9, 11 of a feeder 8 and a winder 10 is rotated, a conductive thin film 7 is wound, the upper surface of the work 2 is covered again with a new surface and another electric discharge machining is performed at the 2nd processing station. |
