In the course of the current lightweight construction trend and the associated material usage ranging from aluminium to ultra high-strength steels, it is necessary to further develop the established self-pierce riveting technology beyond its tried and tested process limits.

This was the objective when developing the new RIVSET® HDX rivet. 

It meets the requirement of joining material mixes of ultra high-strength steels and more ductile materials with the known limits to setting force the setting device has. This is achieved by the combination of the optimal fastener geometry and the required hardness. Boellholf successfully realises joints using materials with a tensile strength of 1,600 MPa and a sheet thickness of 1.8 mm in the top layer. The HDX rivet can be used for established flange widths employing the RIVSET® self-pierce riveting method.