Wire electric discharge machine including average discharge delay time calculating unit

A wire electric discharge machine that applies, while moving a relative position of a table with respect to a wire electrode, a voltage to a machining gap between the wire electrode and a workpiece arranged on the table to generate electric discharge and machines the workpiece, the wire electric discharge machine comprising:

• a measuring unit configured to measure, as a discharge delay time, a no-load time from the application of the voltage to the machining gap until occurrence of the electric discharge, and integrate the measured discharge delay time over a predetermined measurement period to calculate a discharge delay integrated time;
• a counting unit configured to count the number of times of the voltage application in the predetermined measurement period;
• and
• an average discharge delay time calculating unit configured to calculate an average discharge delay time per voltage application in the predetermined measurement period from the discharge delay integrated time calculated by the measuring unit and the number of times of voltage application calculated by the counting unit.