The difference between electric fusion welding and resistance welding
Electric fusion welding is the joining of metals by heating the metal between one or several consumable electrodes and the workpiece.Electric resistance welding is a welding that uses a strong current to pass through the contact points of the electrode and the workpiece, and heat is generated by the contact resistance. The arc of the electric fusion weld melts the metal and the filler material without the need for pressurization, and the filler metal portion is entirely from the electrode. Electric resistance welding is a type of welding method that uses resistance heat as an energy source, including electroslag welding with slag resistance heat as energy source and electric resistance welding with solid resistance heat as energy source. Electric resistance welding often uses a large current. In order to prevent arcing on the contact surface and to forge the weld metal, pressure is always applied during the welding process. Extended information: Welding is achieve...