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Padded Self-Piercing Riveting (P-SPR) on Magnesium High Pressure Die Casting

Journal Article
2022-01-0249
ISSN: 2641-9637, e-ISSN: 2641-9645
DOI: https://doi.org/10.4271/2022-01-0249
Published March 29, 2022 by SAE International in United States
Padded Self-Piercing Riveting (P-SPR) on Magnesium High Pressure Die Casting
Sector:
Citation: Liu, Y., Wang, G., and Weiler, J., "Padded Self-Piercing Riveting (P-SPR) on Magnesium High Pressure Die Casting," SAE Int. J. Adv. & Curr. Prac. in Mobility 5(1):135-140, 2023, https://doi.org/10.4271/2022-01-0249.
Language: English

Abstract:

Padded self-piercing riveting (P-SPR) is a newly developed multi-material joining technology to enable less ductile materials to be joined by self-piercing riveting (SPR) without cracking. A deformable and disposable pad was employed to reduce the stress distribution on the bottom surface by supporting the whole bottom sheet continuously during rivet setting process. To verify the P-SPR process, 2.0mm thick 6061-T6 wrought aluminum was joined with 3.2mm thick coated AM60B magnesium high pressure die casting (HPDC) by using 1.0mm thick dual-phase 600 (DP600) steel as the pad. Regular SPR processes with 2 different die geometries were studied as a comparison. Compared to the regular SPR processes, P-SPR demonstrated advantages on coating protection, crack mitigation and joint strength.