Ultrasonic metal welding technology, mainly for non-ferrous metals, copper aluminum braided wire and many alloy materials, is the most advanced processing technology. It is a kind of cold phase joint that enables surface molecules to be matched and doped through ultrasonic high-frequency vibration and high-speed friction to form a firm and stable metallographic structure. There is no melting, annealing or metallographic change, and no pretreatment or flux is required. Generally, the same metal or dissimilar metal can be welded within a few seconds to a few seconds.