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+--- Thread: How is Anodizing Done? (/Thread-How-is-Anodizing-Done)
How is Anodizing Done? - askaluadmin - 02-02-2018
Anodizing aluminum is considered an electrochemical process. It involves taking an aluminum alloy and submerging it in a tank filled with an electrolytic solution. This solution contains acid; the type of acid depends on the application. Once submerged, an electrical current is passed through the aluminum. The aluminum being anodized serves as the anode. A cathode is placed into the tank as well; usually aluminum or lead. The electrical current causes the aluminum to oxidize. The anodizing process leaves a layer of aluminum oxide thicker than what can be achieved through natural oxidation.