This is the resistance of the heat energy welding methods, including electroslag welding and slag resistance of heat energy to the solid resistance of the thermal energy resistance welding. Resistance spot welding, coating and welding, seam welding, high frequency welding, flash Welding Electrode, resistance welding, including: Electroslag welding with unique characteristics, so on to be described later. Introduces several solid resistance heat energy resistance welding, spot welding, seam welding, projection welding and butt welding. Resistance welding in general is to make the workpiece in a certain electrode under pressure and use of resistance heat generated by the current through the workpiece, the contact between the two workpiece surface melting and the connection of the welding method. Typically use a larger current. In order to prevent the arc and to forging the weld metal, the welding process is always to put pressure on the contact surface. This type of resistance welding, welders surface good and stable welding quality is of paramount importance. Therefore, the welding must be contact between the electrode and the workpiece and the workpiece and the workpiece surface to clean. Wu of spot welding,

Mig Welding Electrode

 and projection welding is the welding current (single phase) large (thousands to tens of amperes), power-on time is short (a few weeks wave to a few seconds), expensive equipment, complex, high productivity, and therefore suitable for large mass production. Mainly used for welding thickness less than 3mm sheet metal components. Various types of steel, aluminum, magnesium and other nonferrous metals and alloys, stainless steel can be welded