| 摘要 |
<p>A method of correcting short-circuiting of a wire-cut electrical discharge machine, wherein not only the short-circuiting in the direction of wire advancing but also the short-circuiting in the direction perpendicular to the advancing direction can be quickly and reliably corrected. When the short-circuiting is detected, a wire is retracted by a predetermined distance L0 (S1, S2). When the short-circuiting is not corrected at this time, it is determined that the short-circuiting in the direction perpendicular to the advancing direction of the wire has taken place (S3). Then, a shape of machining and a position of the wire are determined to make an optimum retracting control (S4, S5), to thereby determine a retracting direction and a retracting distance of the wire (S6). The optimum retracting control of the wire is performed on the basis of the retracting direction and the retracting distance (S7), and, when correction of the short-circuiting is detected, the wire is returned to the initial position where the short-circuit is detected (S8, S9), whereby the electrical discharge machining is continuously performed (S10).</p> |
