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The first step in any successful welding job is choosing the right process for your project. While MIG and TIG welding both use inert gases to shield the object you’re working on, there are some crucial differences that might make one better than the other for different applications. Below are a few aspects to consider before deciding on which equipment to reach for.

What to Consider When Deciding on a Welding Process

1. The Thickness of the Metal

TIG welding works by heating the materials themselves until they fuse, which allows for neater welds on thinner materials. However, thicker materials are more difficult to heat effectively without warping it or causing stress fractures. Because MIG welding uses a filler material to create the joint, it’s usually the best choice for joining thick, heavier pieces.

2. The Electrical Resistance of the Material

tig weldingBecause it uses an electrical current to heat the material, TIG welding works best on metals that are less conductive, like aluminum and some types of steel. If you’re working with cast iron or another metal that doesn’t offer much resistance to the electrical current, MIG welding is usually the faster, more efficient option.

3. The Length of the Run

MIG welders feed the filler material into the pool, generally making the equipment easier to manage. Because you won’t have to start and stop as often, MIG is generally the best choice for long, continuous welds. When you need small, precise welds with a smooth finish, opt for TIG welding.

 

Even on small projects, welding is a difficult job best left to the professionals. Whether you’re building a new prototype or restoring a classic car, the experts at C & C Machine in La Crosse, WI, have the tools and expertise to provide results that will exceed all your expectations. Visit their website for more on their MIG and TIG welding services or call (608) 784-4427 to discuss your project and request a quote.

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