Its probably just mild steel. If you can get your hands on a cheap flux core welder you can put it together. Try doing a series of tack welds if you don't have any welding experience. Clean the surfaces to bare metal and give it a go. Its gonna look like crap but will be stronger than using JB Weld. Its a $25 edger, what do you have to lose. Just remember these words. "A grinder and paint makes me the welder I ain't "