论文部分内容阅读
一、电火花磨球的原理电火花磨球实质上是一种电的热效应作用,在金属的表面上通过大量电流以后,便产生热量,此热量为:Q=0,24I~2Rt式中:Q—热量(卡)I—所通过的电流强度的(安培)R—钢球本身的电阻及钢球与电极板的接触电阻之和(欧姆)t—电流通过的时间(秒)将钢球放在一块固定的铁板(此铁板由两块扇式板组成,中间用电木板隔开,使两者互不连通.铁板上有螺丝连接至电极)与另一块被电动机带动旋转的带有90°环沟槽的铁板间辗磨,当加入6—20伏的交流电压时便产生相当大的电流流向钢球,
First, the principle of EDM ball EDM grinding ball is essentially a thermal effect of electricity in the metal surface after a large number of current, they generate heat, the heat is: Q = 0,24I ~ 2Rt Where: (Ampere) of the current passed through R- (resistance) of the steel ball itself and the contact resistance between the steel ball and the electrode plate in ohms t- the time (in seconds) through which the current passes Steel Placed on a fixed iron plate (the iron plate consists of two fan plates, separated by electric boards in the middle so that the two do not communicate with the iron plate is connected to the electrode screw) and the other is driven by the motor rotation With a 90 ° groove between the iron grind, when adding 6-20 volts AC voltage will produce a considerable current flow to the ball,