Ultrasonic Battery Welding Machine It's an environment and easy operation machine ,it's your best choice! welding abilitycopper 0.15~2 ... or plating can be welded.4, the welding time is short, without any flux, gas, solder.5, no welding sparks, ... be water, gas-tight.ULTRASONIC THEORY Ultrasonic metal welding machine uses ultrasonic frequency vibration principle to change ultrasonic vibration energy ...