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.
by Harry Sadler, Applications Engineering, Lincoln Electric Company. Stick welding is the most common form of arc welding, but creating a good weld may not be easy for the beginner. Unlike wire welding where you basically point and shoot, stick welding has a higher skill level and requires mastery of certain techniques.