Welding Gas Meaning. By 1916 the oxyacetylene process was well developed and the welding techniques employed then are still used. Being an owner of a welding yard I have vast experience of almost all welding types.
You can hear people call them gas MIG welders because of that are the most common shielding gases in welding but other. Welding is a highly technical process with numerous types and techniques that only skilled personnel are able to understand and practice. Gas welding is accomplished by melting the edges or surfaces to be joined by gas flame and allowing the molten metal to flow together thus forming a solid continuous joint upon cooling.
Your gas cylinder was last tested in July 2016.
Gas welding arc welding and resistance welding all appeared at the end of the 19th century. Gas is the main component in MIG Metal Inert Gas welding as these inert gases wont react with the welding bead where non-inert gases like oxygen can react with outside air and cause the bead to become highly porosity. You can hear people call them gas MIG welders because of that are the most common shielding gases in welding but other. Look down the side of your gas cylinder.