Not all welding is the same. Two of the most common types of welding are MIG welding and TIG welding. While these processes are similar in some ways, they are very different in others.

How MIG welding is similar to TIG welding:

  • Both use inert gas to protect the weld. Argon is a common choice, but some alloys may require alternatives, like carbon dioxide and helium.
  • Both use an arc of electricity to create heat that powers the welding process.
  • Both processes create little smoke or fumes.
  • Both have a variety of applications and work well with a variety of materials.

How MIG welding is different than TIG welding:

  • MIG welding is semi-automated because the filler material is placed by the MIG machine. TIG welding requires the filler material to be placed by hand.
  • The arc in MIG welding comes from a wire that is fed continuously from a spool. A tungsten electrode is used in TIG welding and it is not consumed nearly as quickly as the wire.
  • Because it is more mechanical, MIG welding cannot be done as easily outdoors. It is best suited to a fabrication shop that is producing at a high rate.

If you need welding done, it is a good idea to consult with a professional before moving forward. Welding of all kinds requires special equipment and protective gear for the welder. It is not safe to attempt welding without this equipment and gear. MIG welding in particular requires knowledge of all the many parts that make up the machine.