Electrochemical Machining (ECM) Principles


Electrochemical Machining (ECM) is based upon Faraday's law of electrolysis. Faraday's law states that the the mass of a metal altered by the electrode is proportional to the quantity of electrical charges transferred to that electrode.

In ECM the removal of metal is controlled by the anodic dissolution in the electrolyte.

In ECM -

The workpiece acts as the anode
The tool act as cathode.

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