| 摘要 |
<p>When cutting an arc or a corner in a workpiece 2 on a wire-cut electric discharge machine, discharge power as required on rectilinear cutting 3 is corrected on the basis of an amount of flexing of a wire electrode 1 on rectilinear cutting plus an amount of flexing of the wire electrode 1 permitted in view of a tolerance in arc or corner cutting. The tension of the wire electrode 1 is also adjusted and the speed of relative movement between the wire electrode 1 and the workpiece 2 is controlled. Dependent on whether a convex surface or a concave surface is cut in the workpiece 1, the ratio at which the tension of the wire electrode 1 and the speed of relative movement are proportional to each other is changed.</p> |
