That's likely a myth. Even in space, cold welding doesn't happen under static loading: http://esmat.esa.int/Publications/Published_papers/STM-279.pdf http://es

That's likely a myth. Even in space, cold welding doesn't happen under static loading: http://esmat.esa.int/Publications/Published_papers/STM-279.pdf http://esmat.esa.int/Publications/Published_papers/STM-279.p... It requires impact of fretting, and even then there's a lot of debate over whether it's really cold welding or just more normal galling etc.