Patent ID: 8801906

Claim:
An apparatus for electrochemically removing a surface of a component, the apparatus comprising: at least one electrode, the electrode having an outer contour corresponding to a surface of the component to be produced; and a hydraulic pressure device including a housing, a pressure piston disposed within the housing and coupled to the electrode such that the electrode moves with the pressure piston, and a hydraulic chamber disposed between the housing and the pressure piston, the hydraulic chamber being configured to receive a hydraulic medium and operatively connected to the pressure piston such that the pressure piston is acted upon with an actuating force by the hydraulic medium so that the pressure piston can be moved in a first direction in relation to the housing, wherein the hydraulic chamber is fluidically encapsulated with respect to the pressure piston by an elastically deformable solid state joint in the form of a membrane, and wherein the membrane is configured in a ring shape having an inner circumference and an outer circumference, and is connected to the housing of the hydraulic pressure device on its inner and outer circumference.