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I thought spray welding was where powdered metal is gravity fed into the flame of a gas torch and which then deposits/sprays said metal onto the surface the torch is pointed at. Used for building up material where it has worn away. Bearing registers and the like.
Edit: I've just now learnt about spray arc welding now too, as you were
stevo_com
I can stick/arc weld but obviously MIG adds about 3 more layers of complexity to stick welding. Had a look at some of the stuff on YouTube but it's all so dry and boring! Apparently you can do something called spray welding though, where you turn everything right up it's messy (hence the name) but quick and effective. This sounds interesting and suits my needs as nothing I do will need to be pretty.