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What are the different types of Welding and how are they used?

Welding is the process of joining two or more pieces of metal together using a combination of heat and pressure. Because the metal pieces can be any size or shape, this is one of the most popular processes of joining metal.

An employee welding metal at McAlpin Industries factory.
Four of the most common welding procedures are:

MIG Welding (Metal Inert Gas) or Gas Metal Arc Welding

  • MIG welding uses an externally supplied gas along with a continuous solid wire electrode to shield the metal from reacting to environmental factors so that welding is faster and continuous.

TIG Welding (Tungsten Inert Gas), also called Gas Tungsten Arc Welding

  • TIG welding uses a tungsten electrode rod that creates a short arc to weld heavier metals, for heavy fabrication. This method requires a highly skilled welder due to the more difficult process but can be used on most metals and for complex projects.

Stick welding, also known as Shielded Metal Arc Welding (SMAW)

  • Stick welding uses an electrode stick that produces an electric current that forms an electric arc when in contact with metal. The high temperature of the arc welds the metal.

Flux Cored Arc Welding (FCAW)

  • Flux Cored Arc Welding uses a similar welding process to MIG. The wire electrode used contains a core that produces shielding gas and a secondary gas source is not needed. This method is more portable than MIG or Stick welding but cannot be used on thinner metals.

McAlpin Industries provides many different welding capabilities to be able to meet all your welded metal assembly requirements. We have expertise in designing and building fully automated fixtures to guarantee consistent welding and dimensional quality.

To learn more about our welding processes and how we can help, contact us today.


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