| 摘要 |
PURPOSE:To make a universal machining work operable without causing a change in the machining effect, by controlling a mean machining current. CONSTITUTION:A unit pulse, generated by a generator 5, where pulse width tauon.s, spacing tauoff.s etc. of short machining unit are set to a prescribed value according to the machining condition, is kept generated with a constant pulse train produced. And with the unit pulse train interrupted by a pulse of a generator 6, and the pulse train of time width tauon produced, a rest time is provided by an interruption of spacing tauoff, after the time of rest pulse train of width tauon again continues, with this operation repeated, and a unit pulse discharge is repeated in the machining spacing to perform the machining work. Hence, when required an increase of machining mean current, it may be operated to slightly increase the time width tauon and slightly decrease the spacing tauoff. |
