Pressing and clinching
Fasteners are pressed into a component with high axial power.
Within the joining process of clinching and pressing there is a basic distinction between clinching and self-piercing fasteners. While clinching fasteners are pressed into a pre-drilled component, this process is not necessary for self-piercing fasteners (a slug is formed during the setting process). In both cases, the component instead of the fastener will be deformed (in opposition to the fastening process with rivet nuts). The material of the component merges with indentations on the fastener, which leads to a tight fit. Thereby, it is possible to achieve high push-out and high torque.
Cross-section of a clinch nut and spacer combination in a closed profile
Multiple connections within limited space - clinch nut and spacer in closed profile
High-strength connection of a clinch nut and spacer in closed profile
clinching stud / screw
Clinching studs set in a metal sheet part, view from above
Clinching studs set in a metal sheet part, view from below
Clinch nut and spacer combination
The combination of clinch nut and spacer is ideal for high-strength structural connections. The clinch nut handles very high loads due to its large diameter and height. We developed a spin-pull process that enables automated assembly of clinch nuts in combination with a spacer in closed profiles with one-sided accessibility.