But why is that? In tungsten inert gas welding, an arc burns between a non-melting tungsten electrode and the metallic workpiece in an oxygen-free, non-reactive gas atmosphere. Due to the inert shielding gas, no chemical reactions take place with the liquid weld pool. This has metallurgic advantages: the weld seams produced are high-purity, thereby less susceptible to cracks, and have excellent mechanical and technological properties. When using special materials or when there are exacting requirements for the seam quality and appearance in particular, TIG is therefore the preferred welding process. In addition, the process is characterized by a stable arc and a smooth and slag-free seam. Together with the spatter-free welding process in almost all positions, this is the fundamental requirement for top quality seams.
From March 2018, Fronius will be launching a new product series for manual TIG welding with MagicWave 190 or 230 amperes, as well as the TransTig 230i. ArcTig is a new Fronius development for mechanized TIG applications.
With the Fronius Virtual Welder, it is also easy to carry out virtual training for TIG welding. You can find out exactly how this works in our blog post.