Whaf type of welding needs to be done?

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I am a hobbyist that restores diecast toys. I recently got into thr Mattell HotWheels vehicles. My question is what type weld and welder can be used fo this application? Keep in mind these are 1/64 scale items or about 3-4” in length. Spot welds might work here? From  my limited 8th grade shop experience they were simple and stronger than what these projects require! What to do where to go right now. Thanks in advance for input.
Reply:Most likely they were die-cast out of Zamak (zinc-aluminum alloy). I would actually use solder to repair them, the old style plumbers acid-flux type. Followed by a very thorough cleaning to remove the residue. The good news is that its much, much cheaper than welding and likely a better color match besides.Use a bigger hammer.
Reply:I can not imagine a HotWheels repair need that JB Weld can not handle,, it will be safe, and non destructive.With HotWheels castings, even the slightest amount of overheat,, and the previous "car" shape will end up in a "puddle" shape.DO NOT test any repair that uses heat on a valuable car,, IT WILL BE GONE! Try it with the beater HotWheels car that you have over 40 copies of,,,You will not mind looking at that car as a pool of molten metal,,,,,,,,,,,,,,
Reply:Got zinc oxide?


Reply:I cant even imagine what type of repairs would be done to these.   Got any pictures?We've done so much, for so long, with so little. Were now qualified to do anything with nothing !
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Originally Posted by [email protected]

I am a hobbyist that restores diecast toys. I recently got into thr Mattell HotWheels vehicles. My question is what type weld and welder can be used fo this application? Keep in mind these are 1/64 scale items or about 3-4” in length. Spot welds might work here? From  my limited 8th grade shop experience they were simple and stronger than what these projects require! What to do where to go right now. Thanks in advance for input.