I've got a jd combine header auger that cracked out on me. A brief explanation if your not familiar it's like a 30' long tube, maybe 14" diameter with flighting on the outside. Draws grain and straw to center of combine. It's really thin metal maybe 16 gauge. It originally started cracking out near a access panel. I've got a flux cored mig, every time I weld the crack it just cracks out again or cracks out next to the weld. The metal is very brittle, tried to straighten a bend near another access panel and one hit with a hammer and it cracked out. Got any tips for welding it, is it air cooling too fast making the weld brittle. I could weld a reinforcement plate on it but I'm worried that my welds would just crack out around the plate. I could use some tips. Trying to get by through harvest a replacement would run about 4-6 grand and take a long time to swap out.