Brochure

Vibration Welding
Vibration welding creates high-strength, leakproof hermetic seals with most thermoplastics
and is useful for assembling irregularly shaped parts. The solid weld flash makes this technique
attractive for industrial parts assembly. It is economical and fast for high-volume production,
and flexible for multiple tool changeouts in the same machine.
The process creates friction/heat at the joint interface of the parts to be mated, until the right
molten state is reached. The plastic then solidifies under clamping pressure and forms a
permanent bond. In addition to linear vibration welding, only Branson offers orbital vibration
technology, increasing joint welding opportunities to meet a wider range of requirements.
Hybrid Process for Clean Vibration Joints
Hybrid welding combines infrared and vibration processes, offering more options and applications for smart
molding joint design. Branson’s innovative technology incorporates localized broadband infrared preheating into
the vibration weld tooling. Proprietary metal foil emitters melt the joint area’s surface before the vibration process
starts, minimizing particles generated during the vibration weld phases and producing clean, high-strength joints,
with reduced residual stresses, material-specific friction and welding time.
Spin Welding
Spin welding is ideal for joining thermoplastics where the part-to-part interface is round.
The process brings the part interfaces together, under pressure, with a circular motion.
Frictional heat is generated, causing the joint area to melt and fuse together into a strong,
hermetic seal. Spin welding is highly economical, relatively quiet, adaptable to automation,
and provides fast cycle times.
Fully controlling plastic’s ability to melt and flow into an extended shape,
thermal welding enables molten plastic to capture another component,
imbed an insert into a part, and connect a plastic part to other parts such
as metal or glass-filled resins. This process is gentle and won’t damage
fragile components. Its uses include heat staking, insertion, swaging,
degating, and date stamping.
Thermal Welding