Thin wall tube go / no-go gauge thoughts
I am currently having problems with thin walled tubing (.020) that is laser cut and has an END run out of .004/.008 (not flat ends). After cut, they are mounting over a spring unit that is slightly smaller in diameter and welded. The problem I am having is the runout on the tubes when seated is causing an angular motion that allows the spring to rub the thin walled tube.
A. Is there a way to create a go/no-go gauge to check the tube ends straightness? Or an idea to create one?
B. Is there a process to flatten the ends that have severe runout (grinding)?
Much appreciated coments.
CB