Classification of gas shielded welding

Gas shielded welding is generally divided into non-melting electrode (tungsten electrode) inert gas shielded welding (TIG) and molten electrode gas shielded welding (GMAW) according to whether the electrode is melted and shielded gas.

Melted electrode gas shielded welding includes inert gas shielded welding (MIG), oxidized mixed gas shielded welding (MAG), CO2 gas shielded welding, tubular welding wire gas shielded welding (FCAW)

TIG:

Tungsten inert gas shielded welding (TIG) is a welding method that uses arc heat to melt the base metal and the filler wire to form a joint under the protection of argon gas.

Compared with manual welding, the arc and molten pool are visible and easy to operate; the thin plate structure of active metal can be welded; the quality of the weld is good, and the joint strength can reach 80% to 90% of the base material.

It can weld stainless steel, high temperature alloy, titanium alloy, aluminum alloy and other materials for nuclear energy, aerospace, shipbuilding, electronics, metallurgy and other industries.

CO2 gas shielded welding

Carbon dioxide gas shielded arc welding is one of the most important welding methods for ferrous materials. Simple operation in application, suitable for automatic welding and all-round welding. Poor wind resistance during welding, suitable for indoor operations.

Because of its low cost and easy production of carbon dioxide gas, it is widely used in enterprises of all sizes. Compared with the free transition of MIG welding, there is more spatter. However, if a high-quality welding machine is used and the parameters are properly selected, a very stable welding process can be obtained, which can reduce the spatter to a minimum.

 

 

 

 


Post time: Jun-28-2020
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