Anode (izing) is the electric fusion of aluminum oxide to aluminum to protect against uncontroled aluminum oxidization and because the anodizing is also harder than the underlying aluminum it also protects the part from wear too. It can be dyed too. Anodizing increases electrical resistance and is not used in wire.
The electrical process dips an aluminu part in an acid solution with suspended aluminum oxide in the solution. the part is connected as the anode and the tank as the cathode. and electricity causes the oxide to deposit on the aluminum. Electroplating is done in a similar manner.
