Any joining process that relies on passing an electrical current through a workpiece. The heat is generated by the metal’s resistance to the electrical current.
In the tube and pipe industry, high-frequency, noncontact electrical resistance welding is so common that the abbreviations HF and ERW are used interchangeably. However, high-frequency isn’t the only useful ERW process. Many frequencies are used, including direct current, which has no frequency at all, as is contact welding.
The Fabricator Blog
Still Building America—The proof is in the weld - by Josh Welton The measure of your success as a welder lies in the quality of your weld. For female welder Sam Riggin, the quality of her welds also has earned her respect in a male-dominated profession.
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