MIG vs. TIG Welding: The Basics

Metal fabrication uses various techniques to get your product just right. Two of those techniques are different types of arc welding: MIG (metal inert gas) and TIG (tungsten inert gas). MIG and TIG are both types of arc welding. In this article, we’ll explain what each of these welds achieves and how your fabricator chooses between them to complete your metal fabrication project.

What is MIG welding?

MIG (metal inert gas) welding uses a wire electrode (an electrical conductor) to create a weld. This electrode is fed through the welder’s spool gun continuously, making this type of arc welding less labor-intensive than the TIG welding technique that we will cover in the next section. MIG welding is most often used to weld thick metals faster than TIG welding.

What is TIG welding?

TIG (tungsten inert gas) welding uses a separate filler material that the operator feeds onto the weld as they guide the torch with their other hand. Because of this process, TIG welds are often used for metals that need a clean, precise weld to create the desired appearance. This could be for decorative products, thinner metals, etc. TIG welding is a slower process and offers more control than MIG welding, and as such, is a more labor-intensive weld that is performed by highly skilled professionals. This type of welding is also more expensive than MIG welding for the reasons mentioned above.

How Formwell Industries Chooses Between MIG and TIG Welding

The type of welding we choose is fully dependent on the type of project we’re working on. During the first stages of a new job, we analyze the design to determine what metal fabrication techniques will achieve the best result. When a project is larger, uses thicker metals, and requires a continuous weld, MIG welding will achieve our goal. When a project has finer details and thinner materials, we will look to TIG welding to have the level of control that we need to deliver an aesthetically pleasing result. In certain situations, both types of welding are used.

Want to Learn More?

We take the time to sit down with our customers so that we can understand their goals. Our in-depth understanding of your needs allows us to choose the appropriate techniques and materials to provide you with the best quality product. Whether you need help designing your project or you have a design that you want to bring to life, Formwell Industries can help you get there.

Contact your local fabricator, Formwell Industries, today to talk about your next metal project.