Why Choose TIG Welders For Your Welding Needs? https://www.diveboard.com/canaweld/posts/why-choose-tig-welders-for-your-welding-needs-B6GhOJm The use of an inert gas barrier, usually argon, to protect the weld from air reactions is the fundamental attraction of TIG welding. The outcome is a weld that is free of oxidation and exhibits excellent cleanliness. In addition to being aesthetically pleasing, these pure welds are stronger because they are devoid of contaminants like porosity.