Self Pierce Riveting

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Self Pierce Riveting or "SPR" is a process used to join two or more layers of material without a predrilled or punched hole by driving a rivet through the top layers of material and upsetting the rivet in the lower layer without piercing the layer to form a durable joint. 

Whether joining aluminum, steel, plastics, composites, or combinations of materials, SPR is an ideal process for joining sheet materials providing a watertight joint. SPR rivets are installed with a servo-driven tool enabling control of the rivet-setting process for uncompromised repeatability. This system provides process-monitoring capabilities to enable increased productivity and quality.