Articles
Cathode
The cathode is the electrode at which reduction takes place. In electrochemical machining the cathode is the negative electrode and is used as tool to machine the positive workpiece. Read more…
Coating
If in electrochemical machining a counterpulse is used (for cleaning the cathode or for improving the anodic dissolution reaction), an electrically conductive coating can be used on the cathode to protect the cathode from dissolving. Read more…
The current density
The current density - J is the ratio of the current I to the machining area A. The current density is commonly expressed in amperes per square centimetres. Electrochemical machining is performed at high current density, usually tens or even hundreds of amperes per square centimetre. Read more…
Concentration overpotential
The concentration overpotential of an electrode reaction at a given electrode current density (c.d.) is basically the difference in equilibrium potentials across the diffusion layer. Read more…