Eli5: What is the difference between soldering and welding?
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Soldering’s weakest link tends to be the solder material, which being tin based is very easy to tear. Welding’s weakest link tends to be either the surrounding material or inflexibility.
Soldering can be relatively localized with heat, so it can be done within cm’s (or mm’s with robots’ precision instead of human hands) of heat sensitive material. Welding can start a fire several cm away.
Soldering gives an electronic connection that happens to be physical. Welding gives a physical connection that happens to be electronic.
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