Argon is important in welding functions. It is used in arc welding, particularly in TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas) welding, as a shielding gas. Since argon is inert in nature, it does not allow oxidation and contamination of the molten metal with air. This allows for stronger welds that are cleaner, have less porosity and better mechanical properties. For instance, in the aerospace industry where high quality welds are critical for aircraft components, argon shielded welding is extensively utilized. Argon enhances the stability of the welding arc and enables better control of the welding process making it easier to deposit filler material, weld thin walled, and delicate materials.