Differences Between Electric Fusion Welding and Electric Resistance Welding

Electric fusion welding is the welding of metal by heating the metal between one or more consumable electrodes and workpiece. Resistance welding is a kind of welding which uses strong current to pass through the contact point of electrode and workpiece and generate heat. Through contact resistance.
The arc of electric fusion welding can melt metal and filler material without pressure, and the filler metal part is completely from the electrode.


Resistance welding is a kind of welding method with resistance heat as energy source, including electroslag welding with resistance slag heat as energy source and resistance welding with solid resistance heat as energy source.
Resistance welding usually uses high current. In order to prevent the arc on the contact surface and forge the welding metal, the pressure is always applied during the welding process.


Extended information:
Welding is achieved in three ways:
1. Fusion welding - heat the workpiece to be joined so that part of it melts to form a molten pool. After the bath has cooled and solidified, it is combined. If necessary, it can be added to the packing. Suitable for all kinds of metal and alloy welding.  Pressure.
2. Pressure welding - during the welding process, pressure must be applied to the weldment, which belongs to the processing of various metal materials and some metal materials.
3. Brazing - the metal material with melting point lower than the base metal is used as the brazing material. The base metal is wetted by the liquid brazing material, filling the gap, and the base metal diffuses mutually to realize the connection of the weldment. It is suitable for welding of various materials and different metals or materials.