Publication 2026 / Alternative to steel punch rivets: particle-reinforced aluminum for sustainable joining applications

Particle-reinforced aluminum rivets represent a promising alternative to conventional steel punch rivets in lightweight construction. They combine low weight, corrosion resistance, and recyclability with high mechanical performance. The development of particle-reinforced aluminum rivets for sustainable joining applications poses a particular challenge due to high requirements regarding strength, process stability, and geometric design. The Temconex® technology—a continuous powder extrusion process—enables an energy-efficient manufacturing route and results in homogeneous material structures. This paper outlines the entire process chain, from granulation and extrusion to the optimized rivet geometry and its mechanical evaluation within the punch riveting process.