Science, Maths & Technology
Gas shielded arc welding processes (TIG/MIG/MAG)
...Open University's Science courses and qualifications The principles of the TIG welding torch [Images to demonstrate 'Gas shielded arc welding processes (TIG/MIG/MAG)' - see article ] Tungsten inert gas welding (TIG) is an arc welding process, which uses a non-consumable tungsten electrode, shrouded by a protective atmosphere of inert gas, such as argon or helium. The...