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| Self-pierce riveting - the concept. All manufacturing industry has to join materials together. The importance and use of mechanical joining methods has increased significantly in recent years. The trend is towards the use of lightweight assemblies, galvanised and coated steels, high strenght steels, aluminium and plastics and combinations of these materials. Particularly in the sheet-metal industry,self-pierce riveting has turned out to be very promising as an alternative and/or an addition to the previously dominating joining methods. Self-pierce riveting is a process for a high strength mechanical joining of similar or combinations of materials whereby several layers can be joined without problem. Material layers are joined by a hardened semi-tubular rivet in a single step with no pre-drilling, little noise and no emissions, producing an interlocked friction joint. The rivet is designed to penetrate through the top material and is spread under the influence of a die positioned below the lower material. As this lower material is not pierced the resulting joint is localised and impervious to gas and liquid. | The advantages of RIVSET® self-pierce riveting at a glance
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