What is the Difference Between TIG and MIG Welding?

Apr 14, 2020

If you’re thinking about taking up welding as a hobby or possibly a career, you may be wondering what the differences are between TIG and MIG welding. Although there are many different types of welding, TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas) are considered the most common. It’s important to know that different welding processes require different tools, materials, and skillsets. So, let’s discuss the differences between MIG and TIG welding and see which one best suits you.

The major difference is the MIG welding process involves using a continuous feeding wire and with TIG welding (Tungsten Inert Gas), you use long welding rods and slowly feed them into the weld puddle. Some confusion is understandable. Both MIG and TIG welding use electrical arcs to produce heat and join metallic objects together. Another similarity is that both processes use an inert gas mixture to prevent the corrosion of welding electrodes. The welding choice you make depends on the project you are working on, and the end results that you are searching for.

As we mentioned before, MIG welding uses a continuously-fed electrode wire that melts into the weld. The melted wire acts as a filler material in the weld, which allows the two pieces of metal to be joined together without needing to heat them to the melting point. Some projects that you would use MIG welding for include a screen or security door, entry gates, a cage or storage rack, a barbecue pit, an outdoor fireplace, and certain small jobs on your old car.

TIG welding uses a non-consumable electrode that heats the metal to its melting point so that it can be fused directly in that state. This process requires strict control to prevent overheating the metal. Some projects that require TIG welding include the steel corner to a bed frame, table or chair, metal art or architecture, large and small industrial projects, and most projects involving different metals and curves, bends, and weird angles.

No matter what type of welding you are looking into, Vern Lewis Welding Supply is here to help. We have 9 locations throughout Arizona and pride ourselves on offering excellent customer and high-quality welding equipment. Contact a store near you and one of our trained staff can help answer any questions you may have about the various welding processes.

Join Our Newsletter

Receive special offers, product updates, and more!