| 摘要 |
<p>A wire-cut electric spark machine equipped with a current device which has a current contactor (10) to supply electric power to a wire electrode (P). The current device is provided with a pushing means (13) which pushes the wire electrode onto the current contactor at all times, in order to prevent the electrode from being damaged by the electric discharge that takes place when the electrode separates away from the current contactor during the cutting operation by the wire electrode.</p> |
