Anodizing is an electrochemical process that creates a hard, protective oxide layer on the surface of a metal. The oxide layer is typically thicker than the natural oxide layer that forms on metal, and it is more resistant to corrosion and wear. Anodizing can also be used to change the color of metal.
Anodizing is used on a variety of metals, including aluminum, titanium, and magnesium. It is a common process for protecting metal parts in a variety of applications, such as aerospace, electronics, and construction.