On a track, the extra boost given by premium can mean a few tenths of a second difference on a lap time. In the real world, it barely affects performance, or fuel economy. Consumer Reports advises that premium should only really be used in your car if your ownerâs manual mandates it.
TIG-Gas Tungsten Arc Welding (GTAW). Gas Tungsten Arc Welding, commonly called TIG or Heliarc, is a welding process that uses a non-consumable tungsten electrode to heat the base metal and to create a molten weld puddle.
Welding Rods Explained! There are a lot of different welding electrodes and wires out there. In the field, welding electrodes are usually referred to as welding rods so I will use that term here. Stick Welding is also the term of choice in the field for SMAW, the acronym for Shielded Metal Arc Welding. Stick welding used to be done with a bare welding rod.