Other welding equipment
Introduction
MIG/MAG* welding (Metal Inert Gas or Metal Active Gas, depending on the gas injected) also called GMAW (Gas Metal Arc Welding or "gas and metal arc welding") is an arc welding process under protective gas with a consumable electrode. The arc is produced by an electrode formed by a continuous wire and the pieces to be joined, this being protected from the surrounding atmosphere by an inert gas (MIG welding) or by an active gas (MAG welding). It is an arc fusion welding that uses a solid electrode wire, in which the arc and the welding bath are protected from the atmosphere by means of gas supplied by an external source.
MIG/MAG welding is intrinsically more productive than MMA welding where productivity is lost every time there is a stop to replace the consumed electrode. The use of solid and tubular wires has increased the efficiency of this type of welding up to 80%-95%.
MIG/MAG welding is a versatile process, being able to deposit metal at high speed and in all positions. This procedure is widely used in small and medium thicknesses in steel and aluminum alloy structures, especially where great manual work is required.
The introduction of cored wires is particularly favorable for the production of heavy structures where high welding strength is needed.
Metal inert gas (MIG) welding uses a metal electrode that serves as a filler material for the weld and is consumed during welding.
Argon is also the primary gas used in MIG welding, often mixed with carbon dioxide.
MIG welding was developed for non-ferrous metals, but can be applied to steel.
Advantages of MIG/MAG welding
The main advantages offered by the MIG/MAG process are:
Welding processes
Contenido
Se pueden distinguir tres variedades de este tipo de soldadura:.