I have a garden tiller (that I got at the dump). In use it leaves about a 6" wide untilled strip in the middle. I want to reduce this by extending the middle blades/tines. The easiest, fastest way is to weld pieces on. But the tines are pretty hard, to resist being worn down, and I feel that just welding on them will leave a brittle HAZ.
Will this work: anneal them, weld on the extensions, re-harden, and temper? I hope so, 'cause the alternative is drilling & bolting and I find that very unappealing. And sure to work loose.