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Old 27th Jun 2019, 5:24 pm   #12
Bazz4CQJ
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Join Date: Apr 2009
Location: Oxfordshire, UK.
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Default Re: Polishing aluminium

Quote:
Originally Posted by Ian - G4JQT View Post
How about dipping in caustic soda solution?
The blades would have been formed by pressing, so you'd have to believe there could be some residual stress in there, and they already show signs of corrosion. So, it's not hard to believe that it wouldn't take much to initiate stress-corrosion cracking.

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