Anodizing is an electrochemical process of producing protective and decorative coating of aluminium oxide on the surface of aluminium and its alloys. A film of aluminium oxide is formed on the surface of aluminium through the use of a direct current electric supply Copy the link given below and paste it in new browser window to get more information on Anodizing:- http://www.transtutors.com/homework-help/mechanical-engineering/anodizing.aspx

1. ANODIZIN
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2.  Introduction
 Principle
 Major Types of Anodizing
◦ Chromic
◦ Sulphuric
◦ Hard
 Anodized Components

3. Anodizing
• An electrochemical process – protective and decorative coating
of aluminium oxide layer

4.  Type – I: Chromic Acid Anodizing
 Type – II: Sulphuric Acid Anodizing
 Type – III: Hard Acid Anodizing

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