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.
Hypertherm ‘Cut with Confidence’ 60 Seconds Video Contest
Here's Jim Colt telling us about a new video contest anyone with a Hypertherm product can easily enter. T-shirts for just entering and nice prizes, too. Check it out!
From the Web: Remembering Rosie; GM invests; new jobs; subpar growth; and Uber’s economic role - by Vicki Bell Web articles for fabricators—A tale of two Rosies; GM to invest billions; new jobs in Chattanooga; and the current and future economy.
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