Eli5: What is the difference between soldering and welding?
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Soldering: Join two pieces of metal together by heating up some really soft lead/tin wire until it turns to liquid. That liquid can then flow onto the pieces you want to stick together where it cools off and hardens.
Welding: Take a big sparky stick with lots of electricity flowing through it and electrocute other metals into submission. They melt and stick other metals together. Produces a much stronger join than soldering.
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