In ultrasonic welding, tuning refers to the process of adjusting the frequency of the ultrasonic vibration to match the resonance frequency of the horn or sonotrode. The tuning range in ultrasonic welding typically refers to the range of frequencies over which the equipment can be adjusted to achieve optimal performance.
The tuning range of an ultrasonic welding machine depends on several factors, including the design and construction of the equipment, the materials being welded, and the frequency of the transducer. Generally, the tuning range of ultrasonic welding equipment falls within the range of 15 kHz to 70 kHz, with some equipment capable of operating at even higher frequencies.
The specific tuning range for a particular application will depend on the materials being welded and the design of the joint. Different materials and joint configurations may require different frequencies to achieve optimal weld strength and quality. In general, higher frequencies are better suited for welding thinner materials, while lower frequencies are better suited for welding thicker materials.
It is important to carefully select the appropriate frequency and tuning range for each specific application to ensure a strong and reliable weld. This may involve testing and optimization of the welding parameters, such as frequency, amplitude, and pressure, to achieve the desired results. The tuning range of the equipment is an important factor to consider when selecting ultrasonic welding equipment for a particular application.
Ultrasonic stack components (horns and boosters) are designed to be tuned to a specific frequency. There is an allowable range at each frequency.
Here are the tuning ranges:
1) 15 kHz – 14,965Hz to 15,035 Hz
2) 20 kHz – 19,959 Hz to 20,050 Hz
3) 30 kHz – 29,950 Hz to 30,050 Hz
4) 40 kHz – 9,900 Hz to 40,100.
Horns and boosters are tuned to frequency not length.