When most people hear the term welding, they think of metals being fused together, creating sparks similar to those produced by a 4th of July sparkler. This “messy” process of welding produces slag (i.e., byproducts that chips off the weld). It’s known as “Arc Welding” or “Shielded Metal Arc Welding” (SMAW) and is a very popular form of welding. However, there is also a “clean” process of welding known as: “Gas Tungsten Arc Welding” (GTAW) “Gas Tungsten Arc” (GTA) “Tungsten Inert Gas” (TIG) Welding “heliarc welding” “fusion welding” The terms above all refer to the same thing – a clean process of welding producing no slag. This type of welding is useful for critical applications , or when it’s necessary to produce a beautiful surface finish. For more information about TIG Welding go to www.danscertifiedwelding.com from WordPress http://bit.ly/2HjB40n via Link