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[–] kugupu 0 points 11 points (+11|-0) ago 

No. Cold welding also requires a vacuum, which would not be present on the surface of Earth. Earth has basically always had some type of atmosphere, even before oxygen.

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[–] vuke69 0 points 2 points (+2|-0) ago  (edited ago)

It also requires a significant amount of pressure (in the thousands of psi) to be applied to a joint.

Edit: The high pressures are to get a stable joint as strong as the source materials, minimal pressures are required to get materials to just "stick" together.

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[–] Spacehuman [S] 0 points 0 points (+0|-0) ago  (edited ago)

So molecules or atoms (e.g. nitrogen) in the atmosphere are enough to create a barrier to prevent the atoms in the metal from 'connecting' in a similar manner as a layer of oxidation does in space?