Overview
Ultrasonic welding is carried out by means of an ultrasonic generator, which converts a 50/60 Hz current into 15, 20, 30 or 40 KHz electrical energy. The converted high-frequency electrical energy is converted into mechanical motion of the same frequency again through a transducer, and then the mechanical motion is transmitted to the sonotrode through a set of amplitude changing lever devices that can change the amplitude.
The sonotrode transmits the received vibration energy to the joint area of the workpieces to be welded, where the vibration energy is converted into heat energy by means of friction, melting the plastic parts in a welding method.
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