how does cold welding work?

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how does cold welding work?

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What’s the difference between two things and one thing?
There is something in-between.

Normally there’s air or dirt or something in-between if you put things together.
In a vacuum there is nothing, so if you put two things together it becomes one thing.
If it’s a metal or alloy, the molecules don’t know which piece they’re a part of.

If you are talking about cold welding as in cold welding machines they are a junk scam, do a quick YouTube search about cold welders.