Go around the inside edge of the weld with a cutoff wheel carefully cutting the top layer off. Work it with a hand chisel/hammer if you have to to get it to pop loose. Once you get it loose you can clean up the welds and reposition the panel. 1 /8 sheet metal screws will hold the panel better than cleko's ever will. Tack weld around the perimeter first. If not, you can chase distortion to the edge of the panel.
