"Bruce L. Bergman (munged human readable)"
wrote in message
You have to receive the metal annealed Dead Soft, usually frozen on
Dry Ice, stash it away in a big walk-in freezer before you use it, and
that dead-soft state expires in a few weeks even when it stays frozen.
I know that's how they handle aircraft aluminum rivets - you buck them
in place while dead-soft, then the aluminum alloy naturally re-hardens
in a few weeks.

And/Or you have to have a way to re-anneal the aluminum between passes
through the benders and rollers when you are applying severe bends or
multiple operations - that requires a big furnace and a calibrated
control system and convection circulation system to prevent hot spots,
there's not a lot of room between "annealed" and "molten".

Which is why they designed boats from sheet stock and stampings for
"homebuilding" or small shops. You've got to know your limitations.

-- Bruce --

That's for 2024. 5052 behaves better.
http://www.wilkinsonsteel.com/aluminum/5052.htm

jsw