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  • Orbital Vibration Welding
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Orbital Vibration Welding

Orbital vibration welding is a friction welding which means producing heat through mechanical friction between an orbital moving work piece and a stationary component. The orbital movement can be understood as a superposition of two linear movements resulting in linear, elliptical or circular motion. The motion stopped after sufficient material melted. Then the plastic solidifies and forms a permanent bond. Almost all thermoplastic can be welded as well as glass filled or fiber-reinforced material and some material combinations.


In orbital vibration welding the materials are placed in contact and put under pressure. An external vibration force is then applied to move the pieces relative to each other, perpendicular to the pressure being applied. The parts are vibrated through relatively small displacement amplitude, typically at 0.75 mm for a frequency of vibration of 200 Hz in the plane of the joint.

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The CMT (Controlled Motion Technology) developed from BRANSON opens a new range of applications. So every motion from linear to orbital of the plastic part relatively to the fixed one is possible. Based on joint design, best fitted motion can be selected to create an optimised weld. Orbital vibration combined with an infrared pre-heating process (VIB/IR) results in increased weld quality and strength. Metal foil emitters, mounted in a special ceramic, followed the contour of the weld and produce the heat just in the area where it is needed. Plastics will be preheated in weld area and vibration will be start in melt phase, resulting in homogenous weld flesh and nearly no particle emission during weld.

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Tooling and Applications

Our specialists in fixture construction ensure the optimal configuration and design of the holding fixtures. The electronic equipment of our vibration welding systems is modern, reliable, and user friendly.

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