Real BP question

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divad

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Can an aluminum BP be re-bent, or is it a one shot deal?
 
Evad,

Your plate, unless made of a very brittle type of aluminum, should be able to be re-bent. Much depends upon the stress of the original bend. If it's not a very sharp bend you should be OK.

the K
 
Thanks. It's not a sharp bend, but I want to make it sharper. I tried it with a small break without success. How can I visually ascertain the stress on the original bend? Should I just take it to the Chinese metal fabricators across the street and see what happens?
 
I know with some processes, such as forging, you can remove the work stress in a metal through annealing (heat it up and quench it) I am not sure if this would help with Aluminum. It has to be heated to red hot for steel/iron but again, I haven't worked with aluminum in this manner.
 
From:

http://www.eskimo.com/~smallnet/JoeArticles/AlLandGear.html

Hardened aluminum can be temporarily annealed by heating it to about 500 degrees F, and quickly quenching it with cold water. It will then remain soft for between a few hours and a couple of days (depending on how hot the weather is); gradually regaining its original hardness. (To speed up the re-hardening, you can re-heat the aluminum in boiling water or a 250-degree oven for a half hour or so.)
 

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