Ultrasonic welding: Standard lifting machines, continuous process and spot welding
Standard lifting machines
For ultrasonic welding, standard lifting machines with component-specific changing devices are frequently used. The number and positioning of the sonotrodes on the fixture are individually adapted to the application. For high surface requirements, a foil tension can be integrated, which ensures a pressure-free welding. Due to the change-over devices, different components can be produced on the same machine with minimum set-up effort.
In addition to standard lifting machines, we also develop individual concepts. The ultrasonic unit, for example, can be integrated as a station on a rotary indexing table or in a transfer system.
Ultrasonic welding can also be used in an endless process. Endless products – such as textiles or extruded profiles – are combined. We not only take care of the assembly, but also the subsequent processes: from laser or punching to cutting and packaging or simply winding.
In spot welding, also known as riveting, individual points are formed by direct contact with the sonotrode in such a way that a positive connection is created. The advantage of this process is that only one of the components has to be thermoplastic.
Component-specific fixtures can also be designed for spot welding. Alternatively, the sonotrode is attached to the robot so that various components can be flexibly riveted.