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Materials Engineering student investigating AC anodising

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I am currently studying Materials Engineering at Loughborough University, UK. I have been set a course work assingment comparing AC anodising with DC anodising. I was wondering if anyone can point me in the right direction for some resources I could refer to or if you have some knowledge that you could part with?

AC Anodising � Past, Present and Future

• Review existing AC anodising processes
• Contrast with DC anodising
• Applications/Usefullness
• Future trends in production scenarios

Do as sections i.e. past, present, future including above areas.

Paul Wright
materials engineering student - Loughborough, East Midlands, UK

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Could anyone please give me a brief history of AC anodising, its uses in history and modern day, I understand basic anodising. I would like to know how it contrast with DC apart from being softer in some cases ie for wire coatings. Also what is the future uses of AC and does anyone know a good website with information on AC. I have Wernicks and Pinners handbook. Any help would be greatly appreciated

Thanks,

Stuart Green
Materials Student - Nottingham, Nottinghamshire, UK

Ed. note: Try to get hold of a copy of "AC Anodising of Aluminium in Sulphuric Acid Solutions" by W E Cooke, printed in March 1975 issue of Plating and Surface Finishing, and "AC Anodising of Aluminium in Sulphuric Acid" by Eyre & Gabe, printed in vol. 57, page 38+ of Transactions of the IMF. Good luck.