How To Do Stainless Steel Welding. In this case a single-sided welding process is preferred using inert gas protection between the exterior and interior welds. Ad 304 Stainles Steel Has Good deep drawing properties and very good high gloss polishability.
Filler material and base material should be the same. TIG welding produces low heat input which is perfect for thin material like stainless steel. In laymans terms you are required to pull the welding gun away from the welding site or welding puddle so that there is less beading.
Move the welding gun at a steady speed to keep it uniform.
At the same time in order to make the weldment locally heated more evenly the welding current should be strictly controlled. Sensitization leads to intergranular corrosion in the heat affected zone as shown in Figure 1. Many welders struggle with stainless sheet less than 2mm thick. This process also uses shielding gas against contamination but you can weld thinner metals more efficiently with it.