Wire cutting electric discharging machining method based upon predicted discharge gap

摘要

A predicted discharge gap g(n) and a predicted minimum gap gmax(n) between a workpiece (1) and a wire electrode (2) to prevent a short-circuit are added to the machining conditions, and read in doing a program check, and a predicted allowance for machining m(n) in the nth machining is calculated from the predicted discharge gap g(n), a correction amount y(n) of the wire electrode (2) for the workpiece (1) and a wire electrode diameter d, in which the predicted allowance for machining m (n) in the nth machining and the predicted minimum gap gmax (n) between the workpiece and the wire electrode to prevent short-circuiting in the nth machining are displayed on a display unit (17).