VIEW ISO 9000 CERTIFICATE

THE ULTRASONIC TORSIONAL WELDING PROCESS

With the ultrasonic torsional welding process the limitations of the linear ultrasonic welding process already mentioned can be eliminated for ring welds. By an appropriate design of the electro-mechanical resonance system weld tools can be built which vibrate in a torsional mode and hence produce circular amplitudes. This results in constant amplitudes along a ring weld over the whole circumference resulting in an even, high quality weld.

As a result of firstly the coincidence of the axes of the weld force direction and secondly the vibration system, there are no bending moments of the vibration system which would lead to unparallelisms between the weld tool face and the weld material. The observance of narrow parallelism tolerances is particularly important for large ring welds, because parallelism faults cause different specific welding forces along the ring seam and hence would adversely affect the weld quality.

ULTRASONIC TORSIONAL WELDING SYSTEMS

Welding || Metal welding || Techniques || Advantages || Continous Welding
Applications || Linear ultrasonic welding || Ring welding