What Is TIG Welding? Gas Tungsten Arc Welding Gas Tungsten Arc Welding, normally called TIG or Heliarc, is a welding technique that uses a non-consumable tungsten electrode to warm the base metal and to form a molten weld puddle. An autogenous (no filler metal) weld can be formed by liquefying two parts of metal jointly. An external fill rod can be added into the molten puddle to form the weld dot and increase mechanical possessions. The molten weld puddle must to be shielded by an outward gas supply. The most commonly used covering gas is argon, but argon/helium mixtures can be used on weighty aluminum. GTAW can be used to weld most alloys.

Gas Metal Arc Welding Gas Metal Arc Welding, generally called MIG welding, is a method that uses a always provided, solid wire electrode through a welding “gun.” The operator drags a trigger on the welding gun, which provides the consumable electrode through. An electric arc forms between the electrode and the base material, which warms the base material, forcing it to melt, and join. The molten weld metal is saved from oxides and nitrides in the air by an externally supplied shielding gas. The most typically used gas is carbon dioxide or a mixture of argon and carbon dioxide. The GMAW process can be used to weld a wide range of alloys including carbon steel, stainless steel, magnesium, nickel, copper, silicon bronze and aluminum.

Flux-cored Arc Welding Flux-cored Arc Welding is a welding method equivalent to GMAW, in that it uses a continually fed electrode, but operates a tubular wire filled with flux rather than a solid wire. There are two kinds of flux-cored wire, self-shielded & dual shield. Self-shielded is used without the aid of an outer gas shield and uses the flux to shield the molten weld puddle. Dual shield uses the flux and an outer shielding gas to cover the molten weld puddle. Typical shielding gases are carbon dioxide and argon/carbon dioxide mixes. Self-shielded wires are optimal for outdoor use, even in windy situations. Both wires produce a slag covering on the finished weld.

AWS Welding Lanka office located at Peliyagoda and Galaxy warehouse is located at Industial State, Spugaskanda

We are manufacturing Welding Electrodes under the Galaxy trademark. Products include TIG & ARC verities under the AWS stranded.