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J Weld Join > Volume 33(6); 2015 > Article
Research Paper
Journal of Welding and Joining 2015;33(6):55-59.
DOI: https://doi.org/10.5781/JWJ.2015.33.6.55    Published online December 31, 2015.
Design of Helical SPR for Joining Advanced High Strength Steel and Aluminum Alloy Sheets
Dongbum Kim*, Kwan-Woo Kim*, Hae-Yong Cho*
Correspondence:  Hae-Yong Cho,
Email: hycho@chungbuk.ac.kr
Abstract
Self-piercing riveting (SPR) is a sheet-joining method that can be used for materials that are difficult or unsuitable for weld, such as aluminum alloys and other steel sheet metals. The increased application of lightweight materials has initiated many investigations into new SPR conditions for riveting dissimilar materials. However, buckling of the semi-tubular rivet occurs during the riveting of AHSS. In this study, a helical SPR was designed for the riveting of AHSS and Al-alloy. In addition, the reinforced helical SPR which has straight parts was designed. The riveting of AHSS and Al-alloy was simulated. Simulated results were verified by comparison with experimental ones.
Key Words: Self-piercing riveting(SPR), Helical SPR, Advanced high strength steels(AHSS), SILAFONT, Finite element analysis(FEA), CP1470
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