Press brake for 20 ton hydraulic press

[DaveH]

(06-14-2014, 05:27 PM)f350ca Wrote: Doesn't the angle of the die have to be a little less than 90 deg to account for spring back?

Greg,
I think what happens here because of the use of angle iron as the die, the idea is to force the metal harder into the die so that the metal forms a slightly smaller angle than 90deg to allow for spring back.
Seems a little hit and miss but it seems to work.

DaveH