Beginners question - can I weld to my steel frame?
I have a Trek 930 with a screw stuck in one of the rear rack frame mounts. It's seized and rusted in there, broken off, and all attempts to remove it have failed.
I would like to put a rack on this bike, but this is preventing it. I have a mig welder, and I know how to use it - I've welded up all kinds of armor, bumpers, frame stiffeners, shock towers, etc, etc for my Jeep.
What I would like to do is just cut that bung off the frame, and weld a new one on. It would be really easy, but I'm concerned that I may damage the temper of the frame or something.
Are these frames tempered? Will I weaken it by welding?
Can I just weld a new threaded bung?
Thanks for the help!