Thursday, 24 November 2011

What is MIG Welding?

Metal Inert Gas (MIG) welding, also sometimes called Gas Metal Arc Welding (GMAW) is a process that was developed in the 1940s for welding aluminium and other non-ferrous metals. MIG welding is an automatic or semi-automatic process in which a wire connected to a source of direct current acts as an electrode to join two pieces of metal as it is continuously passed through a welding gun. A flow of an inert gas, originally argon, is also passed through the welding gun at the same time as the wire electrode. This inert gas acts as a shield, keeping airborne contaminants away from the weld zone.

- produces long, continuous welds much faster than traditional welding methods. Ideal for welding softer metals such as aluminium.
- capability to weld non-ferrous metals.
- produces a clean weld with very little splatter.
- can be used with a wide variety of metals and alloys.

- The equipment is quite complex. MIG welding requires a source of direct current, a constant source and flow of gas, as well as the continuously moving wire electrode.
- There is learning curve associated with MIG welding, even for experienced welders.
- The necessity for the inert gas shield means that MIG welding cannot be used in an open area where the wind would blow away the gas shield.

A new MIG Welder is available at Frost: the Eastwood MIG 175 Welder.
It is a professionnal quality welder at a DIY price : ONLY £399.00 including FREE Shipping, FREE Spool Gun and 3 year Warranty, click here for more information...

Want to learn :
- what is Welding? click here...
- what is TIG Welding? click here...
- what is MIG Welding? click here...
- what is Plasma Cutting? click here...


  1. I think you have excellent knowledge on MIG Welding and this is my good luck that I found your post, I was looking for. It is very useful for my assignment.

  2. Hi Terry

    I am glad you found the article useful.
    If you have any further questions please do not hesitate to contact Frost on 01706 758 258 or email


  3. I second that, brilliant info, thanks for sharing it.

  4. Arc welding processes have almost completely taken over in production welding. For most welding applications, there’s an arc welding process which will turn out good welds faster than oxyfuel welding.

  5. Mig welding is a process of using electricity to melt and join pieces of metals together. Its been regarded one of the most simplest form of welding. Mig welder equipments are utilized to conduct this process. This welding is also referred to as hot glue gun in welding industry. Mig welding is quite useful as you can use it to weld diverse sort of metals like aluminium, copper, nickel, magnesium and so on. I am sharing a website where you can check out a huge selection of welding equipments for sale at an affordable price ratio. Here is that website :