The numerical analysis of rivet deformation when joining aluminum sheets using self-pierce riveting method

TL;DRAbstract

Self-piercing riveting (SPR) is becoming an important joining technique for the automotive applications of aluminum sheets. SPR is essentially a cold forming process, in which a semi-tubular rivet, pressed by a plunger, pierces through the thickness of the upper sheet and flares into the bottom sheet, forming a mechanical interlock between the two sheets. In this paper, the riveting process has been simulated numerically using the finite element code MSC Marc. The results show the capability to simulate the riveting process for different combination of rivet material and the joined sheet pressure conditions. The riveting analysis has been performed for joined aluminum sheets. Based on the numerical calculation results, the author explains the riveting process phenomena. The comparison analysis has been performed within the numerical experiment range to cover the effect of various riveting process parameters on the rivet deformation.

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