Time to delurk for a while.
For an upcoming project, it looks as though I'm going to need to acurately bend some 4 to 6 mm thick sheet (or should it be plate?) metal into partial cylinders (max cylinder will be about 270 degrees). The max width I'll need to form is 350mm, with diameters in the 5" to 8" range.
I've been searching for slip roll plans, but have so far failed in finding anything suitable. So, it looks as though I'm going to have to design my own slip roll.
The design I'm looking to build is one with two upper rollers that are geared together, with a lower adjustable roller for setting the formed diameter. But the question is, what kind of forces are involved, what material would be best of rollers, and most important, is this a suitable method for such thick metal?
thanks moray