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.
In the world of welding there are three techniques which receive the majority of the attention. These are SMAW (shielded metal arc welding), GMAW (gas metal arc welding), and TIG (tungsten inert gas) welding. There are important differences in the process and capabilities of each, so it is important to understand their unique characteristics. SMAW