ELECTRIC DISCHARGE MACHINING

PURPOSE:To improve the accuracy while to enable long term continuous use by performing electric discharge machining through yet-dischared portion from start to end thereby utilizing the electrode effectively. CONSTITUTION:A rotation controller 40 will control not to cause dimensional error of work 1...

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Bibliographische Detailangaben
1. Verfasser:	OSATO TOSHIKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL TRANSPORTING WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
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Beschreibung
Zusammenfassung:	PURPOSE:To improve the accuracy while to enable long term continuous use by performing electric discharge machining through yet-dischared portion from start to end thereby utilizing the electrode effectively. CONSTITUTION:A rotation controller 40 will control not to cause dimensional error of work 1 due to consumption of electrode 10. In other word, upon elapse of predetermined time during discharge machining, rotation of work 1 through work drive motor 5 is stopped to lift the electrode 10. Then the electrode 10 is rotated by predetermined angle through an electrode drive motor 4 to lower the yet-discharged portion of electrode 10 while facing against the yet-machined portion of work 1 and to perform electric discharge machining again. Since the yet-machined portion is machined by the yet-discharged portion, high machining accuracy is achieved and the electrode 10 can be used continuously for long term to reduce the replacing times thus to improve the availability factor of machine.