Electric Resistance Welding


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What is Electric Fusion Welding (EFW) and Electric Resistance Welding (ERW)?

Electric fusion welding  (EFW)is the combination of metal and metal by heating one or several consumable electrodes and the workpiece. Resistance welding is a welding process that uses a strong current to pass through the contact point between the electrode and the workpiece to generate heat from t ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 1 day agoPress > Electric Resistance WeldingERW pipeEFW pipe

Differences Between Electric Resistance Welding and Electric Fusion Welding

ERW is the abbreviation of electric resistance welding . The welding method of ERW pipe and submerged arc welded pipe is significantly different. The pressure welding method without filler metal is adopted. The weld is not filled with other components, and the skin effect and the proximity effect o ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 3 months agoPress > Electric Resistance WeldingElectric Fusion WeldingEFW +1