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Just to solve the confusion, MIG welding (Metal Inert Gas) and GMAW (Gas Metal Arc Welding) is but one as well as the same. MIG refers to the welding process created in the initial half of the twentieth century and is also presently the most utilized and favoured welding processes. They produce and also quality welds, and that's why they are frequently used by car makers and so on.
The MIG equipment is consisting of a welding gun, a wire electrode as well as a shielded gas supply, with the equipment being linked to an energy supply, normally a dc reverse polarity type because they have stable arcs that bring about low spatter and great weld bead - these are the response to the inert gas (generally argon) which provides for a shield to guard the type of material from being contaminated.


Apart from this, there are more great benefits of employing MIGs. For starters, MIG welders produce welds faster and better compared to a stick welder. Having an [http://www.feedbooks.com/user/1774204/profile mig welder tips and tricks], you can produce continuous welds and never have to worry about the electrodes used up permitting maximum efficiency and more productivity - as both versions are crucial for just about any industry big or small alike. This is especially true in cases where the metal being welded is of soft material like aluminum (MIG welders came about being a solution for the need of a welding way to weld soft metals like aluminum along with other non-ferrous materials). 
Secondly, since these welders will not require the use of any flux whatsoever, the opportunity for slag to get kept in the metal being welded is zero. This ends in strong and sturdy welds.
Obviously, where you can find advantages, there are also disadvantages.
MIG welders really are a bit complex material and not all people have the expertise to dabble from it. Before acquiring and using such equipment, it's best to educate yourself with the different items it can be combined with as well as the necessary skills to control it properly. As an example, the electrodes found in this specific welding process can be found in sizes, all of these are made from varying metal types. You should be aware of such since there is no-one size fits all type. Certain types perform best for just one application and never for your other. Also, welding techniques needs to be learned and mastered, because most general and common techniques tend not to apply by using this welder. MIG welders cannot be employed in a vertical welding position, nor can it be employed to weld overhead materials. Lastly, since MIG welders make us of inert or semi-inert gas, they can not be utilized to develop outdoor projects (specially in windy locations and times) since air can literally blow away the shielding gas, making this useless.
These type of welders are some of the best developments with the Twentieth century, revolutionizing the way the people assist metals - specifically soft and non-ferrous metals. Thanks to this equipment, we can easily enjoy several things crafted beyond metal - that wouldn't be possible or existent if not of these welders.