Method and apparatus for the electrochemical removal of material from a workpiece

The invention relates to a method of electrochemical removal of material from a workpiece (12). Moreover, the invention relates to a device (15) which is suitable for the removal of the material. According to the invention it is provided that a mechanically guided relative movement is performed between the workpiece (12) and a support electrolyte in the form of a brush or a sponge (14), whereby a precise processing of the surface is allowed under predetermined conditions advantageous. is at the surface to be processed, it may be for example a bore (13) act with the sponge (14) is cylindrical in this case, and thus precisely to the surface of the bore (13) adjusted.