The flash butt welding technique is widely used in the construction industries to weld boilers. One of the main advantages of flash butt welding is that it provides high welding quality due to solid fusion and also the process is fully automated without any manual effort.
In addition to this, no consumables or shield gas are used in flash butt welding thereby reducing the chances of materials getting contaminated.
The flash butt welding is used to join work piece of metals, railway tracks, rail chains and pipes, by welding the ends of the material using electric heating and electric arc. The welding process is conducted in three sections. The initial process called as pre heating is carried out under low welding pressure and in the flashing process which is the second phase the metal surfaces are burnt off. Finally in the upsetting of material phase, the irregular surfaces are finned removing the oxidized material.
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