| 摘要 |
An EDM machine with a travelling wire electrode having a device for straightening and rethreading the wire electrode. The device has a pivotally rotating arm that has a clamp to grasp the free end of the wire after accidental breakage. The clamp applies a tightening stress (optionally the wire is being heated), the wire portion to be discarded is wound on a capstan (configured with circumferential grooves) associated with the clamp on the arm, a wire cutter severs the wire above the capstan, and finally the wire is rethreaded.
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