Electrochemical drilling supported by electrode ultrasonic vibrations.

In case of machining small surfaces the main problem, which should be solved is optimal electrolyte flow. One of the ways for solving this problem is introduction of electrode ultrasonic vibration. It is right to assume that ultrasonic vibration can support heat and electrochemical reactions products transportation out of machining area. In the investigations the influence of the machining parameters, such as power of ultrasonic vibrations, interelectrode voltage electrode, feed rate on final interelectrode gap thickness, current density and indicators of machined surface micro-geometry (surface roughness parameters Ra and Rz) have been taken into account. The results of investigations have it proved that the electrochemical machining assisted by electrode ultrasonic vibrations in case of machining small surface can improve significantly surface quality in comparison to classical electrochemical machining.