Question

Ultrasonic metal welding principle

Answer 1

Ultrasonic vibrations would refer to sound waves that have a frequency higher then human hearing. The vibration themselves would be the physical vibration of the molecules in the medium in which the sound is traveling.

Frequency Range= 20 kHz to 60 kHz

 That would be above 20 kHz, or 20,000 cycles per second.

Ultrasonic welding is an industrial technique whereby high-frequency ultrasonic acoustic vibrationsare locally applied to workpieces being held together under pressure to create a solid-state weld . It is commonly used for plastics , and especially for joining dissimilar materials . In ultrasonic welding, there are no connective bolts, nails, soldering materials, or adhesives necessary to bind the materials together.