Welding mag

MAG welding, just like TIG welding, is one of the arc welding procedures.
A motor automatically unwinds a filler wire (2) from a reel and feeds it automatically towards the welding point. This wire is guided directly to the welding point by the contact sleeve (1).
Unlike tungsten inert gas welding (TIG) the filler wire melts. At the same time, shielding gas (3) is added through a nozzle, which protects the weld pool (4) against the effect of oxygen and therefore ensures oxidation-free joining of the metal parts (6). The finished weld is also called a weld run or bead (5).
For MAG welding (with active gases) a gas mixture of argon, carbon dioxide and oxygen is used. MAG welding is mainly used for unalloyed steels.
MAG Welding Specifications
Aluminium and aluminium alloys as well as low to high-alloy rustproof steels are materials which can be joined with MAG welding. MAG welding can only be used indoors in enclosed rooms. Wind and weather could blow the shielding gas away and the welding process would take place without oxidation protection.
Even in shipbuilding, it is difficult to image life without MAG welding. As, due to the fast welding speed, little deformation is to be expected, even in awkward or difficult positions, this arc welding procedure is primarily used for repairs and maintenance of thin metal sheets from 0.6 mm thick.
A differentiation is made between the following arcs:
Short arc welding
Used for thin sheets as well as in difficult positions. A fine droplet, low sputter, i.e. smooth material transition is produced.
Long arc welding
Used for thicker plates and sheets; A coarse droplet, non-short-circuit-free and spatter-intensive transition of the materials is produced.
Spray arc welding
Used for thicker plates and sheets; By using argon-based mixed gases, large melting and higher speeds are achieved for welding thicker sheet and plate thicknesses. A fine droplet, very low spatter and short-circuit free material transition is produced.
Pulsed arc welding
The intensity of the droplets created during welding can be set, depending on the requirements. This procedure can be used in all Welding positions. Due to these special advantages, it is now the most used welding procedure.
Advantages of MAG welding
The weld is protected against oxidation. This procedure can be used in all Welding positions. Due to these special advantages, it is now the most used welding procedure.
Disadvantages
Wind susceptibility-- metal shielding gas welding can not take place outdoors. MAG welding requires a great deal of experience and is not easy to control.



For MAG welding (with active gases) a gas mixture of argon, carbon dioxide and oxygen is used. MAG welding is mainly used for unalloyed steels.
Aluminium and aluminium alloys as well as low to high-alloy rustproof steels are materials which can be joined with MAG welding. MAG welding can only be used indoors in enclosed rooms. As, due to the fast welding speed, little deformation is to be expected, even in awkward or difficult positions, this arc welding procedure is primarily used for repairs and maintenance of thin metal sheets from 0.6 mm thick.