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Is this the proper procedure to bend 1/4" aluminum flat bar?

atomarc

Diamond
Joined
Mar 16, 2009
Location
Eureka, CA
Shoot me..I didn't do a search for this.:o

I have some 6061 1/4" x 2" Aluminum flat bar. I dusted it with Acetylene soot, heated with a rosebud until the soot cooked off, plus some, then bent it 90 degrees. That worked, it didn't show signs of stress cracking or melting. I beat on it with a hammer 'post heat' and other than being a bit softer than the virgin bar, it seemed fine.

The heated and bent flat bar will be used in a VERY low stress application. Am I good to go or do I have my head where the sun doesn't shine?

Stuart
 
Aluminum does not like tight bends. Break it and see if you think it will hold up. Then make another.

I'm not a metal specialist, but I assume If you heat it up and let it cool to annealing it, then heat it up again to bend it, the stresses will be removed but also a lot of its strength.

If you cut that from 5052 sheet, it will bend fine.

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