Booster (welding technology)
The booster (also: translation piece or amplitude transformation piece ) in ultrasonic welding systems has the function of changing the amplitude (oscillation amplitude ) provided by the converter and forwarding it to the sonotrode . Depending on the design of the booster, the amplitude can be reduced or increased.
As a rule, however, the boosters used in ultrasonic welding increase the amplitude provided by the converter, because the plastics to be welded require larger amplitudes. The gear ratios of the boosters used are usually between 1: 1.5 and 1: 2.5. They are often stored using a clamping ring.
Another function of the booster in many ultrasonic welding systems is the storage of the entire welding unit (consisting of converter, booster and sonotrode).
Boosters are made of aluminum or titanium - other materials are rather rare.
There are special forms of welding units in which the functions of the converter, the booster and the sonotrode are integrated in a single workpiece.