I haven't seen anyone talk much about backing off the break and
putting in a sacrificial spacer. It increases the radius of the
bend and helps prevent that fracture line from forming. I am not
a tinner, but our tinner has done this on aluminum shapes when the
material wants to shred or crack.
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)




"Terry Keeley" wrote in message
. ..
Need some sheets bent past 90 degrees to about 100 degrees and
since
I've done quite a bit of work on them I'm getting a little
nervous
about breaking them. They are 10.5" wide where the bend will be
and I've oriented the grain with the bend. Am I OK? Do I need
to
anneal them first? Would heat from a torch help?