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Ultrasonic rubber cutting principle is through the ultrasonic generator 50 / 60Hz current into 20,30 or 40kHz power. The converted high frequency electrical energy is again converted into mechanical vibrations of the same frequency by means of transducers, which are then transmitted to the cutter through a set of amplitude modulator means which can vary the amplitude. The cutter transmits the received vibration energy to the cutting surface of the workpiece to be cut, in which the vibration energy is cut by activating the molecular energy of the rubber and opening the molecular chain.
link:https://www.altrasonicautomation.com/automation-ultrasonic-cutting-machine-elaine/ultrasonic-rubber-cutting/titanium-blade-40khz-rubber-cutting-process.html
Titanium Blade 40kHz Rubber Cutting Process Ultrasonic Tire Cutter Machine