Electropolishing Services
Electropolishing offers many advantages over the mechanical processing of metal surfaces.
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The following characteristics are achieved with electropolishing:
- Smooth and glossy surfaces Micro-smoothing through electropolishing
- High corrosion resistance
- Metallic purity and chemical passivity
- Optimal cleaning behaviour
- Particle-free and pyrogen-resistant
- Quality control by uncovering machining and material defects (defectoscopy)
- Deburring in the micro- and macro-range
- Heavily reduced film propensity
- Significantly reduced degassing behaviour
- Reduced friction and less wear and tear
Electropolishing – how is it done?
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.
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