Gas welding basically used for weaker joints(in sheets) and arc welding for stronger one(plates). mobile welding (not in a shop)is the ideal time for arc welding . gas welding is the way to go as far...
If by gas welding you mean-oxyacetylene welding. The difference is just that arc welding requires a darker shade of lens.When oxyfuel gas welding (OFW) usually a shade 5 lens is recommended.When arc...
well plazma is created when an arc becomes such an intence heat that it creates a flame like in a plazma cutter and gas well is from a balance between a flamable and oxygen.