Explain principal process for electro chemical machining, Mechanical Engineering

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Explain Principal Process for Electro Chemical Machining

It is also called electrolytic machining or anodic cutting.
This process is quite commonly used for shaping hard metal or re-sharpening of cementing carbide cutting tools.

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This process is based on principal of faraday and ohm.
In this process an electrolyte cell is formed by the work piece (anode) and tool (cathode) in the midst of a flowing electrolyte in a very small gap of 0.025cm.
The metal removal is due to the ion migration towards the tool. The tool is provided with a passage for circulating the electrolyte with sufficient velocity to flush off the metallic ions from the cutting zone. The work is generally kept stationary and the tool is fed in a linear direction.
The electrolyte used is generally an aqueous solution. This process is ideally suitable for the production of deep holes.

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