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In linear 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 0.9 mm for a frequency of vibration of 240 Hz (high frequency), or 2 mm at 100 Hz (low frequency), in the plane of the joint.

Branson informs about Linear Vibration Welding

In linear 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 0.9 mm for a frequency of vibration of 240 Hz (high frequency), or 2 mm at 100 Hz (low frequency), in the plane of the joint.

Typical welding time is 2 to 10 sec which leads to a complete cycle time of 20 to 45 sec including handling and machine movements.

Linear vibration welding is an established technique in automotive industries and white goods. Several applications like dashboards, door panels, air intake manifolds, geo grid, coffee machines, washer sprayer and washer drums are welded by linear vibration machines of BRANSON.

Linear friction welding requires more complex machinery than other techniques e.g. spin welding, but has the advantage that parts of nearly any shape can be joined.

Nearly every thermoplastic can be welded. Amorphous and reinforced material like Polyamide with glass fiber, even material combinations like thermoplastic with wood or textile.

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