The Experimental Study on Ultrasonic Vibration Assisted Micro Electro-discharge Machining for Micro Hole
The discharge gap was very small,the state of chip removal and deionization was poor and discharge rate is low when the micro hole was machining. Ultrasonic vibration assisted could improve the state of chip removal,deionization and discharge rate. While ultrasonic vibration was used to micro eletro-discharge machining ,the experiments of micro eletro-discharge machining were carried out on ultrasonic power,hole diameter,pulse frequency. The result shows that ultrasonic power and power frequency had optimum values when hole of different sizes were machined. If machining conditions were right,ultrasonic assisted micro electro-discharge machining would be better than conventional micro electro-discharge machining.