Influence of die geometry on self-piercing riveting of aluminum alloy AA6061-T6 to mild steel SPFC340 sheets

Deng, Jiang; Lyu, F.; Chen, Ruming; Fan, Zhisong

doi:10.1007/s40436-019-00250-9

Cited by 31 publications

(8 citation statements)

References 18 publications

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“…Based on the above established FEM to study the effect of CFRP plate thickness on joint forming cross-section and shear strength, four types of lay-up CFRP plates (10,11,12, and 13 layers) were selected for simulation analysis. The corresponding thicknesses of the four types CFRP plates were approximately (1.6, 1.8, 2.0, and 2.2 mm).…”

Section: Effect Of Cfrp Plate Thicknessmentioning

confidence: 99%

“…It was concluded that preheating the magnesium alloy plate before riveting can reduce the cracks generated during joint forming and the joint strength increased with increasing preheating temperature. Deng et al 12 performed riveting of Al and mild steel plates by using 1 SPR and concluded that a tapered section die with moderate convexity can ensure good section quality of the joint during SPR. Lim et al 13 investigated the possibility of joining CFRP to magnesium alloy AZ31B using frictional self-punching riveting (F-SPR).…”

Section: Introductionmentioning

confidence: 99%

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Study on the forming process and shear mechanical behavior of CFRP/Al self-piercing riveting employed 3D modeling

Kong

Wang

Zhang

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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In this work, a 3D finite-element model (FEM) was developed to accurately predict the mechanical behavior of CFRP/Al self-piercing riveting (SPR) during the forming and shearing process. A continuous damage model based on the modified Hashin failure criterion was proposed to model the CFRP, and a cohesive model considering the traction-separation criterion was used to capture the delamination between CFRP layers. The simulation results were in good agreement with the experimental results. Based on the developed FEM, the damage of CFRP in the SPR forming process, the shear mechanical properties and damage of joints in the SPR shearing process, the effects of CFRP plate thickness and rivet length on the SPR forming cross-section and shear strength were investigated. The results showed that, the maximum interlock value of 0.46 mm was obtained when the rivet length was 6.5 mm and the CFRP plate thickness was 1.6 mm. The maximum shear peak load of 3611.98 N was obtained when the rivet length was 6.5 mm and the CFRP plate thickness was 2.2 mm. The interaction between rivet length and CFRP plate thickness should be considered in the actual SPR connection.

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Section: Effect Of Cfrp Plate Thicknessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the forming process and shear mechanical behavior of CFRP/Al self-piercing riveting employed 3D modeling

Kong

Wang

Zhang

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Table 1 shows the friction coefficients implemented in FE models of the SPR process in recently published literature. A uniform friction coefficient was used between different contact parts in some FE models [26][27][28]. This can effectively reduce the difficulty of identifying the suitable friction coefficient with the inverse method.…”

Section: Clampingmentioning

confidence: 99%

Experimental and Numerical Investigations on the Impact of Surface Conditions on Self-Piercing Riveted Joint Quality

Zhao

Han²,

Liu

et al. 2023

Coatings

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In this study, experimental and numerical investigations were carried out to achieve a comprehensive understanding of the impact of surface conditions on self-piercing riveting (SPR) joint quality. Oil lubrication and sandpaper grinding were employed in experimental tests to change surface conditions at rivet/top sheet, top/bottom sheets and bottom sheet/die interfaces. A finite element (FE) model for the SPR process was also adopted to numerically assess the impact of surface conditions. Variations in surface conditions were modelled by changing friction coefficients at contact interfaces. The results revealed that the friction coefficient between the rivet and top sheet (μ1) imposed significant influences on the interlock (I1) by affecting the deformation of the rivet shank and top sheet. The friction coefficient between the rivet and bottom sheet (μ2) showed a lower influence on the joint quality because of a smaller contact area and shorter interaction time. The friction coefficient between the top and bottom sheets (μ3) led to opposite changing trends of remaining bottom sheet thickness at the joint centre (tc) and under the rivet tip (ttip). The friction coefficient between the bottom sheet and die (μ4) demonstrated crucial influences on the remaining bottom sheet at the joint centre. The riveting force was significantly influenced throughout the whole riveting process by the μ1, but only affected at the end of the joining process by the other three friction coefficients.

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“…Deng et al used different die geometries for the self-piercing riveting process of AA6061-T6 and SPFC340 sheet materials. Higher shear stress and energy absorption values were achieved in the joints made using a single conical section die [17]. Abe et al joined three sheets on top of each other with a self-piercing riveting and mechanical riveting method by using 1 piece of 5000 series aluminium alloy sheet and two pieces of 980 MPa ultra-high-strength steel sheet materials.…”

Section: Introductionmentioning

confidence: 99%

Triple joining of different sheets with self-pierce riveting method

Çavuşoğlu

Bakırcı

Dinkçi

et al. 2022

Science and Technology of Welding and Joining

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Self-piercing riveting (SPR) is a high-speed mechanical joining technique for sheet metal materials. In this study, the mechanical properties of DC04 steel and AA5182 aluminium alloy in triple combinations joined by the SPR method were investigated. For this purpose, triple-joining processes were performed in different combinations, and macro-structural analysis and tensile shear tests were carried out by comparing their mechanical properties. As a result of the study, the highest shear forces were obtained in FFA (DC04-DC04-AA5182) and AFF (AA5182-DC04-DC04) combinations. As the number of aluminium layers increases, the probability of tearing increases in triple joining. Higher spread ratios were generally measured under conditions with hard materials in the upper layers and soft materials in the lower layers.

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Influence of die geometry on self-piercing riveting of aluminum alloy AA6061-T6 to mild steel SPFC340 sheets

Cited by 31 publications

References 18 publications

Study on the forming process and shear mechanical behavior of CFRP/Al self-piercing riveting employed 3D modeling

Study on the forming process and shear mechanical behavior of CFRP/Al self-piercing riveting employed 3D modeling

Experimental and Numerical Investigations on the Impact of Surface Conditions on Self-Piercing Riveted Joint Quality

Triple joining of different sheets with self-pierce riveting method

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