One of the advantages which distinguishes the thermal riveting procedure from other assembly techniques is the safe form-fit. Another advantage: the thermoplastic cannot embrittle as in the case of ultrasonic welding. Apart from the well-established welding techniques for plastic parts in series, KLN Ultraschall AG also develops and produces in Heppenheim equipment for thermal riveting. This technique is still regarded as a very special procedure and has important advantages in comparison with ultrasonic, hot plate, vibration or spin welding. Thus it can be interesting for additional fields of application. This procedure is particularly applied for plastic parts having safety features. In contrast to the ultrasonic riveting, the thermal riveting can be applied without any problems for plate/ plastic assemblies, as no swinging tools are touching the plates which could endanger the assembly.