| 摘要 |
<p>A machining control method for a wire cut machining apparatus which corrects machining errors caused by the deflection of a wire electrode due to the electric discharge. An arithmetic processor (103a) calculates a corrected corner radius (r1') using corner shape data (x1, y1, r1, x2, y2) applied from paper tape (101) and the amount of deflection during linear machining (D0) or the like stored in advance, and also obtains contact point (pt, pt') and the center (Pc) of the circular arc of radius (r1') directly contacting (l1, l2), and moves the wire electrode along straight line P1Pt, circular arc PtPt' and straight line Pt'P3, thus correcting the machining error of the corner.</p> |
