The method of electrochemical metal machining is suitable for precise deburring and rounding of edges at exactly defined points. The material is electrolytically dissolved on the anodically connected workpiece. In addition, this technology can also be used to work contours into the workpiece surface. The method is independent of burr thickness and condition as well as alloy and component microstructure. It can therefore also be applied to cast, pressed and forged parts. Even hardened components can be machined using this method.