MIG Welder History
  The popularity of MIG welding over other forms of welding is founded on the strides made over close to a century of continuous improvement in the MIG processes and which constitute a central part of the LONGEVITY MIG welder history. As early as the beginning of the twentieth century, innovators in the welding industry were trying various ways of improving the quality of their welds and one process that promised to deliver great results was MIG welding.

MIG is an acronym for Metal Inert Gas and it is also referred to as Gas Metal Arc Welding (GMAW). What sets MIG welding apart from the other forms of welding particularly stick and Oxy-Acetylene welding is the fact that the process makes use of inert gas to shield the area being welded from the contamination caused by air and which slows down the welding process and leads to poor quality welds.

Early attempts at using inert gas in MIG welding started bearing fruits in the 1940s and this is an important period in MIG welder history. The actual test for developing a useful MIG welder in the early days consisted in deciding on the gas to use for the creation of the protective shield. Attempts were made with various gases including carbon dioxide, hydrogen, carbon monoxide and argon. Each of these gases had their advantages and disadvantages. Carbon monoxide, for example, was found to be effective but presented serious risks to the welder.

Argon used in the early years of the MIG welder history had the disadvantage of being too expensive thereby making MIG welding less cost effective when compared to other forms of welding. With time however, technological advances have enabled the use of semi-inert gases which are less expensive than their inert counterparts and this has made MIG welding more cost effective.

The real breakthrough in the development of a practical MIG welder occurred in 1949 which is an important year in MIG welder history. In that year, three inventors from Airco patented a process for the use of a shielding gas by use of either argon or helium mixed with carbon dioxide. For quite a while, this remained the foremost way of creating protective shields for MIG welders.

The next major achievement in MIG welder history took place when the short circuiting MIG welder was developed. This happened in the 1960s and continuous improvement in the MIG welding processes enabled the reduction of spatter produced from MIG welding as well as the use of thinner sized wires. During this important period in MIG welder history, the ideal mixture of gases was established. This ideal mixture turned out to be a combination of argon, carbon dioxide and helium, with argon being the main gas

LONGEVITY MIG welders have continued to enjoy widespread use and acceptance with other advancements in MIG welder history particularly the development of advanced MIG welder designs which have made MIG welding applicable in varying situations. Today, LONGEVITY MIG welders are used by home owners for small repair jobs as well as by large corporations for major construction works.
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