The combined ultrasonic and electrochemical micro-machining technology has many excellences in machining productivity
precision
environmental safety
and also has technical predominance and development potential in aspects of machining micro-structures of cemented carbide. In this paper
the machining mechanism and test device of combined ultrasonic and electrochemical micro-machining is expatiated. Many comparative machining tests of cemented carbide are carried out. The influence of machining parameters such as voltage
feeding force and electrolyte on machining result is analyzed. By optimizing the machining parameters and machining conditions
the micro-machining accuracy of cemented carbide microstructures is increased.