??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??.