Gerald Weimer





Forge welding process diagram

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Electric resistance welding at a glance

June 13, 2002 | By Gerald Weimer, Ray Cagganello

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.

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