Amazing hot stuff!
"... Cold welding, also known as contact welding, involves joining two or metal parts made from the same material, which are in direct contact while under the pressure of a vacuum. ...
This is why the two or more pieces of metal that need to be cold-fused together have to be thoroughly cleaned and brushed to remove the rust — it’s there even if you can’t see it with the naked eye — and other impurities. Besides cleaning, another requirement is that the metals have to be ductile (the ability of a metal to withstand permanent deformation without fracturing). Non-ferrous metals like copper, lead, gold, and aluminum are some of the most commonly used ductile metals for cold welding.
Once prepared, the two metal parts are brought into contact at high pressure under a vacuum and at ambient temperature. ...
Cold welding is great when you need to join dissimilar metals, meaning metals and alloys that have widely different properties. ...
Cold welding is also preferable when laying underground wires inside dangerous hot spots such as tunnels brimming with inflammable gas that may catch fire from head-inducing welding. ..."
No comments:
Post a Comment