How do you roll over a tube edge?

Figured as much really. Lots of go information. Thanks! I am going to look up some videos and check it out. I came up with an idea yesterday to make a simple geared turn table to chuck up a pipe and sping it around on my shop press. then make a simple die that would set screw onto the press shaft, then you can slowly apply pressure with the press while the piece spins and roll the lip inwards.

Titanium is shooting for the moon, but I bet that stainless would be softenough to roll with my homemade lathe idea.

who knows, its all just a search for ideas and knowledge really. Keeps my mind rolling you know.