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Electrochemical machining process (ECM) can be applied for efficient shaping advanced materials conducting electrical current which are difficult or impossible for machining using conventional methods. In electrochemical machining workpiece is anode and material is removed as a result of electrochemical reactions “atom by atom” without mechanical forces. This mechanism of material removal make it possible to obtain high quality of machined surface layer with uniform properties. The very important advantage of ECM process is also the fact that there is not electrode – tool wear because the equivalent reaction to anodic dissolution is hydrogen generation on cathode surface and hydrogen can be easy removed form interelectrode gap by electrolyte flow. Because of this advantages ECM process is widely applied in space, aircraft, car and electromechanical industry and research stimulating ECM development are carried out.

Electrochemical machining – state of the art and direction of development