hi, i am going to do the qaurter panels on my ford xc the panels them selves are in good condition its that i wont to fix the rust on the back of the panels and other places while i have the panel off..so iam wondering if it would work if i cut the panels of with a thin cutting wheel i have cutting wheels which are (1.0mm) thick..what iam asking is if i can cut the quarter panel off then weld the same panel back on?

and if so the process of doing so.
thank-you