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.
Different Types of Welding... 1  TIG, Stick , Mig make up most of it. 2  The video below is an example of tig welding. 3  video shows example of both tig and stick welding with one small welding machine. 4  mig welding video. 5  overview of different types of welding. 6  stick welding certification test tips.