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.| ECM – the basics |
The basic principle of electrochemical erosion involves dissolving a metallic material poled as a (positive) anode in an electrically-conductive medium (electrolyte).
The current conduction required for the electrochemical erosion process can be achieved by an external or internal supply point. The positive pole of a direct current point is applied to the metallic material to be eroded while the negative pole is applied to the metallic electrode to be shaped. An electrolyte positioned between the two electrodes is required for the charge transport. Watery sodium nitrate or sodium chloride solutions are often used. A current flows between the electrodes in the watery electrolyte solution after applying a pulsating direct current. The electrolyte molecules dissociated in ions are responsible for the charge transport.
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