flash welding

noun

1. a method of welding metal edge-to-edge with a powerful electric flash followed by the application of pressure.

Example Sentences

The old pipeline was forged using flash welding, which introduces impurities into steel that can cause cracks and corrosion.

From Wall Street Journal

“It’s basically exposure to UV rays, UVC rays in particular, without protection. So when you see someone flash welding, they’re using a mask. If they weren’t, this is the condition they would have,” he said.

From Los Angeles Times