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cold welding

From Wiktionary, the free dictionary

English

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Etymology 1

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From cold +‎ welding. From being a form of welding not requiring adding heat.

Noun

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cold welding (uncountable)

  1. A phenomenon where in a vacuum, two clean oxide-less uncoated metal surfaces will fuse/weld/merge together when they come into contact with each other, without any other action required (without fusion heating).
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See also

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Etymology 2

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From cold weld +‎ -ing.

Verb

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cold welding

  1. present participle and gerund of cold weld