Difference between TIG welding and MIG welding

The difference between TIG welding and MIG welding is: TIG non-melting pole inert gas shielded arc welding, MAG welding is melting pole active gas shielded welding, often referred to as TIG welding. Gas shielded arc welding belongs to MIG welding or MAG welding according to the type of protective gas. The use of TIG welding and wire filling in TIG welding is often used in the bottom welding of pressure vessels. The reason is that the gas tightness of TIG welding can reduce the weld hole in the welding welding of pressure vessel. The heat source of TIG welding is DC arc, the working voltage is 10~95 volt, but the current can reach 600 a. The correct connection mode of the welding machine is the positive pole of the workpiece connected to the power supply, and the tungsten electrode in the torch is used as the negative electrode. Inert gases are generally argon. MIG welding is called arc welding by melting electrode, using external gas as arc medium, and protecting metal droplets, welding pool and high temperature metal in welding area. Inert gas (Ar or He) shielded arc welding with solid core is called inert gas shielded arc welding, or MIG welding. Expansion of information: 1. TIG is a kind of non-melting inert gas shielded welding, which uses the arc between the tungsten electrode and the workpiece to melt the metal and form a weld. Tungsten does not melt in welding process, it only acts as an electrode. At the same time, the nozzle of the torch is sent into argon for protection. Metal can also be added as needed. It is generally known as TIG welding in the world. Non-melting pole inert gas shielded arc welding is an excellent way to connect sheet metal and backing welding because it can control heat input well. This method can be used for metal bonding, especially for welding metals such as aluminum and magnesium, which form refractory oxides, and active metals such as titanium and zirconium. The welding quality of the welding method is high, but the welding speed is slow. Two, MIG melting pole inert gas shielded arc welding is used to use the arc as the heat source between the continuous feeding wire and the workpiece, and the inert gas protection arc sprayed by the torch nozzle to weld the arc. Gas shielded arc welding is usually used as protection gas: argon, helium or mixture of these gases. Argon or helium is used as protective gas when it is called inert gas shielded arc welding (in international short for MIG welding). The main advantage of the arc welding of the melting pole gas protection is that it can be conveniently welded in various positions. At the same time, it also has the advantages of fast welding speed and high deposition rate. 铜焊丝,Copper Welding Rods,铝焊丝,aluminium welding wire,镍焊条,Nickel electrode,药皮焊条,Flux Coated Brazing Welding Rods