Anyway, I have this grand idea of buiding a press jig to bend the pieces in short sections and the weld them in place. These pieces would be about 8 to 9 feet long and need an arc of about a foot or so. I've already done the CAD work to know the exact dimensions and I have a log splitter with 30" stroke to use as my power plant for the hydraulic press. I'll custom make two press "dies" to get the two different arcs I need. I can make one frame with two different roller pins for the top half of the press frame.
The only thing I'm unsure of is how much spring back I'll have and how to compensate for it. The log splitter has a 5" diameter cylinder and with 2500PSI behind it, so I have plenty of power to work with.
Anyone ever done something like this before and have any words of wisdom for me?