| 摘要 |
An EDM system in which a tool electrode is spacedly juxtaposed with a workpiece to define a machining gap which is substantially open directly to a region of atmospheric air. A non-inflammable (e.g. water-based) machining liquid is injected into the machining gap while electrical discharges are effected therein to electroerosively remove stock from the workpiece and to permit the injected liquid to be at least partially decomposed with a resultant formation of machining products which, growing in amount, are accumulated in a pile as debris on a surface of the workpiece adjacent the machining gap. A brush is provided to sweep the debris, and to substantially remove the piled machining products adjacent the machining gap.
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