Textiles, even the heavy external awnings materials can, for the first time, be easily cut and sealed with this technology

The cutting tools are excited with ultrasound, which requires significantly less cutting force. The ultrasonic blades cut like a hot knife through butter. This process involves a microscopic sawing movement. On the one hand, this allows cutting materials which are difficult to separate and, on the other hand, prevents substances from adhering to the tool by reducing the friction. In this way, tough materials such as rubber or cheese can be cut without sticking and material distortion. Depending on the design of the tool, a local temperature increase at the cutting edge may occur, so that the cutting edges are simultaneously sealed when cutting. During this, the tool remains cool.

During the ultrasonic welding of plastics and textiles, the thermoplastic constituents of the workpieces are heated locally above the softening point within a very short time. This creates an inseparable weld during compression. The local heating is generated by the contact pressure and the high pressure fluctuations that the sonotrode exerts on the workpiece. The tool and the surrounding components remain relatively cold. Due to the operation in resonance, the ultrasonic welding is one of the most energy-efficient joining processes because almost all the energy is introduced into the joining zone.