but is now commonly used to weld steel. Gas tungsten arc welding (GTAW, also known as TIG welding) also requires a shielding gas such as an argon/helium mixture or an argon/hydrogen mixture. TIG ...
Figure 3.1: Schematic diagram of TIG welding equipment. TIG welding can also be used for welding with filler material, which is applied in rod form by hand similar to gas welding. Tools for mechanised ...
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