About MIG Welders
Generally regarded as the easiest form of welding to learn, MIG (or metal inert gas) welding was developed in the 1940s originally as a means of welding aluminium and other nonferrous metals, but later became widely used on steel. Today the principles involved in the process are roughly the same in that MIG welding uses an electric arc to create a short circuit between the wire fed welding equipment and the metal being worked on. The heat generated by this short circuit along with the inert or nonreactive gas, which shields the weld from airborne contaminants, melts the metals in a localised area and allows them to combine. Once cooled and solidified the resultant bond is a strong one.
Although MIG welding equipment is less portable than that used for arc welding and can only be used on metals ranging from thin to medium thickness, it does possess a number of advantages. For example, it does have the capability of bonding a number of different kinds of metals, such as stainless steel, carbon steel, copper, nickel, aluminium, silicon bronze and various other alloys. The MIG process also produces a good weld bead and only a minimum of splatter. Proper safety precautions should always be taken.
Available is a wide selection of used and new MIG welders, including those produced by the Murex, Clarke, Lincoln, Sebura and Sealey companies. Also offered are compact gas-less Mig welders. Also offered are spares such as replacement shrouds, nozzles and contact tips, and replacement parts such as torches.