27 - 29 October 2020
Henkel Beiz- und Elektropoliertechnik
Electropolishing represents the reversal of the electrolytic process. Under the action of direct current, metal is removed from the workpiece surface in an electrolyte (solution with high conductivity). The component to be electropolished forms the positive pole (anode) and the cathode the negative pole, which completes this electric cell. If the current flow is switched on, metal dissolves on the anode surface and dissolves within the electrolyte. The material removal can be specifically determined by the respective electrolyte, the current density and the polishing time.A feature of electropolishing is that the process is initiated only under the influence of current, so that the polishing can be carried out precisely according to the targets. In addition, the individual adaptation of the cathodes to the workpiece can also selectively remove material according to the customer’s requirements.
The corrosion resistance of stainless steel is based on the formation of a very thin chromium oxide-rich passive layer, which is formed only on metallically pure ...