| 摘要 |
<p>A method of removing a cut-away piece, capable of simply and reliably removing the piece cut away from a work through a wire-cut electric discharge machining and a device therefor. Upon completion of the cut-away work of the piece (41), a restraining assembly (63) at the forward end of a piston (62) is disposed in the vicinity of the top surface of the piece under the control of a numerical control machine, thereafter, a working liquid is upwardly sprayed from a lower nozzle (19) toward the bottom surface of the piece, and the piece is held in the work in a state where it is separated from the lower nozzle and not removable upwardly from the work. With the working liquid being sprayed, a work table is moved horizontally, whereby the cut-away piece integrally with the work is separated from the lower nozzle horizontally. The table is stopped in its movement at a position in its moving where a jet stream of the working liquid normally ceases to act on the bottom surface of the piece, the working liquid is sprayed downwardly from an auxiliary nozzle (70) toward the top surface of the piece, so that the piece can forcibly dislodged down from the work.</p> |
