Recent developments in this area aim at the use of much
smaller electrodes with a smaller inter-electrode gap size for
machining complex features. This requires improving severely
the resolution of the anodic dissolution and respectively the
achieved accuracy. These developments led to the appearance
of a new area of ECM machining technology defined as
‘Pulsed Electrochemical Machining’ (PECM) [3–5]. PECM
uses voltage pulses instead of continuous voltage enabling a
better feature resolution