In this welding process, the wire electrode also acts as the filler metal to create the weld. It is constantly fed through the welding gun as it melts. MIG also uses shielding gas that comes in the form of carbon dioxide, oxygen, helium, or argon. This gas traveling through the welding ...
welding electrodes, cast iron electrode, nickel and nickel alloy electrode, copper and copper alloy rods, aluminum and Aluminum Alloy electrode and electrode for special purposes. The selection principle of 3. electrode (1) selection and parent material chemical composition of the ...
Resistance welding, invented in 1877 by Elihu Thomson, was accepted long before arc welding for spot and seam joining of sheet. Butt welding for chain making and joining bars and rods was developed during the 1920s. In the 1940s the tungsten-inert gas process, using a nonconsumable tungsten...