Does anyone know if it is possible to solder or otherwise repair die cast aluminum??
Project is an antique toy truck bumper. Seems like it would be similar to repairing
cast auto emblems,etc. Seems as though I read about how it can be done, but I have a condition called CRS. Can't remember.
Did a search here and did not find anything.
Thanks for any help

 

Do a search for alumalloy. It is expensive but can be done with a bernz o matic torch. The alumalloy does work as well as they claim. You can also Tig weld it.

Roy

 

the alumalloy rods work very well, as long as both surfaces are clean. the cleaner the better. for thin, a propane torch works, but i prefer to use a map gas torch. for heavier gauge, a brazing torch in needed.

it is best to practice a few times before doing something valuable, aluminum has a very narrow working window. it is either too cool, just rite, or melting. the window between to cool and melting is only something like 75 or 100º. i practiced by welding beer cans together. after i did a few cans, i moved up to different thicknesses. it took me about 2 weeks to get good enough to do precision work. i still do a test piece before i get down to it, just to check the torch, hand and thickness.

 

Were doin aluminum in Mig welding class right now. It's hard gettin the voltages just right. Even our teacher takes a whileot get it welding good, gotta move fast too. Not too badda lookin wleds when ya get it right tho. Not sure if you can do cast with MIG tho

 

Make sure it is not die cast zinc.