| 摘要 |
PURPOSE:By installing the pulser to generate pulse train having width and interval in group of unit pulse to the switch control of high frequency inverter, a group of unit pulse is supplied to the machining interval. By doing so, discharge is remarkably improved. CONSTITUTION:High frequency is formed by a switch 4 On and Off through pulser and is transformed by a transformer 5. Then, by the control of the switch 4 the pulse collectivity grouped by unit pulse is easily put by the transformer and it is controlled and output by high response through high frequency. Output alternating voltage of an output winding 52 and 53 is half wave rectified and becomes direct pulse and is supplied to an electrode 7 and to the machining interval of a material to be machined 8. Output voltage is divided to the high and low voltage of a rectifier 91 and 92 and is charged to the interval and in the high voltage the discharge startup is easy and discharge current thereafter is effected in low voltage for stability and improvement of machining performance. |
