This article provides an overview of electric resistance welding (ERW). It dicusses high-frequency ERW (contact and induction) and rotary wheel contact welding (AC, DC, and square wave). It describes the differences among the processes, as well as the power supplies and weld rolls.
October 11, 2001 | By Ray Cagganello
Proper clothing, training, procedures, troubleshooting, preparation, and equipment for HF welding are critical if you want to prevent workplace accidents.
February 19, 2001 | By Ray Cagganello
The basic steps of general preventive maintenance and troubleshooting for both vacuum tube and solid-state high frequency (HF) welders should assist in keeping welders online and producing pipe or tube.