I've got a '70s Motoconfort (Motobecane) with the original "French randonneur-style" front luggage rack (it looks like a very small porteur rack):
In the photo above, the rack is mounted to the bike frame via a bracket which sits between the front brake and the frame on the brake mounting bolt (highlighted in red). However, this mounting plate has sadly cracked with use:
Although this isn't exactly a "Welding Stack Exchange", perhaps someone here has experience in (trying to) repair this sort of metalwork?-- Is it possible and feasible from an economic and/or usage perspective, and if so, how can it be done? Of course, such a small front rack would never need to carry a truly heavy load, but it should be strong enough to hold a significant amount of weight without bending or breaking (again). It would be a shame to throw it away, since it seems that Motoconfort/Motobecane luggage racks aren't all that common any more.