the welding of metal objects by extreme high pressure or by contact in a high vacuum with no application of heat.
verb (used with object)
to weld (metal objects) by extreme high pressure with no application of heat.
to weld (metal objects) by contact in a high vacuum, as in space.
) to join (two metal surfaces) without heat by forcing them together so that the oxide films are broken and adhesion occurs
Collins English Dictionary - Complete & Unabridged 10th Edition
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