Cold press welding is a method of connecting non-ferrous metals and alloys by applying pressure without the need for electricity, heat, fillers, and flux during welding. implement There are two important factors in cold press welding: one is the application of a certain pressure between the workpieces, which causes local plastic deformation and atomic bonding of the metal necessary condition; Secondly, under pressure, the metal on the end face of the workpiece must have sufficient plastic cold pressing capacity, which is a sufficient condition for achieving welding.