WIRE ELECTRIC DISCHARGE MACHINING MACHINE, WIRE ELECTRIC DISCHARGE MACHINING MACHINE CONTROL METHOD, AND WIRE ELECTRIC DISCHARGE MACHINING MACHINE CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a wire electric discharge machining machine that can always optimize a wire electrode after annealing.;SOLUTION: A controller 90 presumes the temperature of a wire electrode 12 at every specified time in the following procedure and shuts off the electric excitation to an excited section when the presumed temperature reaches the target one. First in (s31), it reads the number of pulses of the second pulse counter 59. Next in (s32), it detects the extension of the electrode 12. Then in (s33), it calculates the temperature rise caused by the electric excitation. Here, the temperature rise caused by the electric excitation in the excited section at the specified time is calculated according to the extension of the wire electrode 12, the expansion coefficient of the wire electrode 12, and the distance of the excited section. Then in (s34), the temperature of the wire electrode 12 is presumed. Here, the temperature in the wire electrode 12 to which the value of the temperature rise by the electric excitation is added is presumed as the temperature of the wire electrode 12.;COPYRIGHT: (C)2003,JPO