研制了一种基于阴极往复运动的微细电解加工系统,将绝缘后的阴极安装在直线电机上,利用直线电机高加速度运动产生的抽吸作用,排除加工间隙中的电解产物,更新加工区域的电解液。该加工系统主要包括机床z轴进给机构、直线电机往复运动机构、可编程直流电源及其他一些辅助装置。通过微细孔的加工试验结果表明:阴极快速往复运动可以显著提高加工精度,从而证实了该加工系统的可行性。
An electrolytic micromachining system based on cathode cyclic reciprocal motion is developed. The side-wall insulated cathode is attached on a linear motor which is equipped on the system. The high accelerated motion of linear motor speeds the refreshing of electrolyte and the removal of by-products in the gap. The machining system consists of feeding mechanism on Z axis, reciprocal motion mechanism, programmable DC supply and some accessory devices. Experiments of micro-hole machining reveal that reciprocal motion of cathode can improve machining accuracy significantly. Hence, the feasibility of the machining system is proved.