flash butt welding

8.9

A process that joins two metal pieces by melting their ends with electricity, often used for rails or pipes

noun
/flæʃ bʌt ˈwɛldɪŋ/

Specialized

: soldadura por flash

The company used flash butt welding to join the steel rails seamlessly along the track.

Examples

Proper alignment is critical in flash butt welding to ensure a strong, uniform bond between the metal pieces.
The flash butt welding technique is efficient for metal pipes.
Advances in flash butt welding have improved the strength and reliability of pipeline joints.
Many industries rely on flash butt welding for strong joints.
Advances in flash butt welding have improved the strength and reliability of pipeline joints.
Proper alignment is critical in flash butt welding to ensure a strong, uniform bond between the metal pieces.
The company used flash butt welding to join the steel rails seamlessly along the track.

Synonyms

flash welding

vsflash butt welding

Specialized

7.1

To join two metal pieces by heating their ends with electricity until they melt and pushing them together

is the same process but expressed with a longer technical name

Surface Forms

flash butt welding singular

flash butt weldings plural

Morphology

flash + butt + welding

The parts 'butt' (an end-to-end joint) and 'welding' (joining metal) make it clear that this is a type of welding that joins ends, so a learner can infer the general idea. However, the specific role of 'flash' (a technical heating/electric-arc procedure) is specialized and not derivable from common senses of 'flash', so the full procedural meaning is not predictable to a B1 learner.

Etymology

Flash butt welding comes from a simple image: two metal butt ends face each other, a bright flash of electricity makes the ends melt, and then the pieces are pressed together. So, flash butt welding means 'a way to join metal ends' by melting them with a spark and pressing them into one.