The chart that I use at work doesn't even list 6061-T6, only 2024-0, 2024-T,
2024-W, 7075-T, 7075-0, and 7075-W
Lane

"Wayne Lundberg" wrote in message
...

"Wwj2110" wrote in message
...
Im looking for info on predicting springback of 6061-T6 aluminum.
Specifically I want to know the punch radius for a part with a 1.08 r.
Also I
need the springback factor for bending a 90 degree angle with a .18 r at
the
bend.

It's been over thirty seconds (20 years) since bashing aluminum into
compound irregular shapes... but I think t-6 must be annealed first in
order
to get any shape change at all. So you soften the 6061 and keep it frozen
until brought to the forge. Then you smash it to shape with no springback
at
all because it's mush. When it sits for a few days it regains its
strength... I think.

Wayne