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GMAW welding or MIG welding is a welding process in which the heat source is the result of an electric arc. This arc is created by the consumable electrodes. These electrodes are made of metal. The arc created between them heats the workpiece. Inactive gases such as argon or helium are used in this process. Many construction and manufacturing industries require welding projects. Traditional welding costs about 69 to 85% of the project cost. As a result, welding techniques such as GMAW reduce this overhead by about 25%.
GMAW concept
GMAW is commonly referred to as welding (metal inert gas) or MIG (inert gas metal). Mig or Mag welding is a subset of GMAW welding. This welding process enables the welder to weld non-ferrous metals to each other. This method is called gas metal arc welding because a wire electrode is continuously consumed by a welding gun. There is also an inert gas tank during this operation. This gas forms a coating around the welding site. This gas is used to prevent external influences in order to ensure the comprehensiveness of welding during and after welding.
Applications of GMAW welding
The main uses of this welding are: • Pipe welding, pipe connection. • Car production line and its maintenance. • Constructions. • Rail connection. • Underwater welding. Although MIG welding was originally invented for welding aluminum and other non-ferrous materials, it is also used today for steel welding. This welding method requires less time than other welding methods. Because GMAW welding is used for many materials, this welding method is used in any type of construction industry that uses metals. The following is a list of common GMAW welding applications. The automotive industry uses MiG welding to manufacture and maintain automobiles. The robotic product line uses GMAW for processes that require time savings. MIG welding is used for pipe fittings during welding. • Railway construction industry uses MIG welding for fast connection and repair of railway parts.
Advantages of GMAW welding
This process can be fully automatic or semi-automatic. • Suitable for connecting thin and thin to thick parts. • The time required to clean the weld is very small. This type of welding is used in many horizontal, vertical, edge and موقعیت positions. As a result, flexibility is one of GMAW’s benefits. • MIG cost-effectiveness. • Fast welding process. • Low source wastage including consumable electrodes. One of the most important advantages of GMAW welding is its high quality welding. This type of welding is produced much faster than SMAW welding and TIG welding. • Since no powder (flux) is used, welding appendages do not remain in the weld metal. • There is a small amount of weld splash in it. It can be used in many metals and alloys, including aluminum, copper, manganese, nickel, iron and many of their alloys. This process can be done in various ways, including semi-automatic or fully automatic. GMAW welding has many advantages over other welding techniques. • MIG welding is not prone to corrosion. GMAW welding is used to weld thin materials without making holes in them. • Less hydrogen is used during welding, which increases the strength and comprehensiveness of the joint. GMAW welding has less electrode wastage. Because all the electrodes are consumed during welding. • Because GMAW welding uses the electrode continuously. As a result, there is no overhead when changing the electrode and it saves all the time. • The welding electrodes used in this process must be the same material as the material to be welded.
