Any thing in the vibration will sound, any sound by vibration occurs. Human ears perceive only within a certain range of sound, the maximum to18000(18K ) Hz. Higher frequency of the sound we called it the ultrasonic. Ultrasound can produce high frequency vibration, the vibration, we make it easy for non ferrous metal welding. Ultrasonic wire welding machine ultrasonic metal welding machine derivative equipment. Mainly used in automotive wiring harness, motorcycle harness such as welding copper, aluminum welding. Is often called a harness car welding machine.

Ultrasonic metal welding is the use of high frequency vibration wave is delivered to the two welding metal surface, under pressure, so that the two metal surface friction and the formation of the bond between the molecular layer, the utility model has the advantages of fast, energy-saving, high strength, good electrical conductivity of fusion, without spark, close to the cold processing; defect welding pieces of metal are not too thick (generally less than or equal to 5mm ), not too big, need joint pressure. Ultrasonic metal welding is eighteen thirties discovered by accident. At the current spot welding electrode with ultrasonic vibration test, found no current can also be welded, therefore the development of ultrasonic metal welding technology. Ultrasonic welding although found earlier, but so far, the mechanism is not very clear. It is similar to the friction welding, but differentiated, ultrasonic welding time is very short, below the recrystallization temperature and pressure welding; it is not the same, because the static pressure pressure welding is much smaller than. The ultrasonic welding process in the initial stage, the tangential vibration out surface of metal oxides, and the protruding part is a rough surface produced by repeated micro welding and the destruction process and make the contact area is increased, while the welding temperature, welding interface in plastic deformation. In the contact pressure, close to atomic attraction can occur when the distance, i.e. to form the solder joint. Welding time is too long, or ultrasonic amplitude Congress to make the welding strength decreased, and even the destruction of.

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