In vibration welding, the plastics parts to be joined are vibrated (rubbed)
against each other at a chosen frequency, amplitude and pressure which results
in frictional heating of the surfaces, causing the polymer to melt at the
interface. The molten polymer flows out of the weld-zone giving rise to flash.
When vibration stops, the weld cools down and solidifies.Vibration welding is
a cost-effective process, with short cycle times.
Vibration welding has the advantage that the polymer melt at the interface is
not exposed to open air, which can be important for materials that are
susceptible to thermooxidative degradation. With this process, strong
connections can be made. However, the product is exposed to vibrations during
welding, which can be a disadvantage for certain applications.
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