Self-piercing riveting (SPR)
Product Category: Car Body Joining Engineering (Welding, Riveting, Gluing)
Self-piercing riveting (SPR) is a cold joining technique that eliminates the need for pre-drilled holes. The rivet penetrates the upper layer of material and undergoes plastic deformation in the lower layer to form a mechanical interlock. This technology is widely applied in automotive lightweighting, aerospace, and the manufacturing of multi-material composite structures.