Here at Sheet Metal Services we offer both Mig and Tig welding services, but what are the differences?
Firstly Mig stands for metal inert gas, and Tig stands for tungsten inert gas. Both Mig and Tig use an electric arc to make the weld, but the main difference is that Mig uses a continuously feeding wire, while Tig uses long welding rods and slowly feeds them into the weld puddle.
Mig welders use the feeding spool of welding wire that burns, melts and then fuses both metals together. This can be used on a variety of different metals including aluminium, stainless steel, and mild steel.
Tig welders use a a non-consumable tungsten electrode to run a current through the metals being joined. This may or may not use a filler metal. Tig welding is more commonly used for thinner gauge materials. The main advantage being that you can use low power to avoid blowing through the metal. Tig is usually of higher quality and stronger, however it is a slower process.