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Anodization of Aluminum



2002

Kindly provide me the following literature if it is available:

The factors that lead to an efficient anodization of Aluminum starting from sandpaper blasting through sealing. Also is there a mathematical relationship between hardness and scratch resistance? If so what measurement systems are in use for this?

Shree Nanguneri
- Santa Clara, California, USA


2002

Such a broad question is best answered by referring you to a book: The Surface Treatment and Finishing of Aluminum and Its Alloys by S. Wernick, R. Pinner, P.G. Sheasby

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey


2002

Shree,

The factors you ask for are too many to mention in this forum. Everything is important for a quality anodic coating, from the Al. alloy, to the sealing process. Each step is important, and paying close attention to the little details are important for a consistent, quality coating. This site has a few books dealing on the subject, I suggest reading them. The coon test for anodized al is the Taber abrasion test, basically a wheel that rotates on the coating, and hardness is measured by revolutions before coating failure. I have preformed Rockwell/Vickers test on coatings, and find them, at times.. difficult to interpret, so I'm not sure of any correlation.

Marc Green
Marc Green
anodizer - Boise, Idaho

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