Abstract
In this work, electromagnetic riveting (EMR) of aluminum alloy rivet was investigated by numerical simulation and experiments. The numerical simulation was carried out by means of ANSYS and LS-DYNA software. The SPHB (Split Hopkinson Pressure Bar) test was performed for 2A10 aluminum alloy rivets, and Johnson-Cook material model was used to describe it. The sequential electromagnetic-thermal-mechanical coupling model was established to analyze magnetic pressures, adiabatic temperature rise, and deformation process. Experiments and microstructure observation were performed to verify the proposed model. The formation of adiabatic shear band and the effective strain distribution were simulated, and the maximum temperature rise was up to 252 °C. The dynamic recrystallization was observed by optical microscopy observation under a discharging voltage of 2.0 kV. The simulation result of rivet heading accorded with experiments.
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Zhang, X., Yu, H.P. & Li, C.F. Multi-filed coupling numerical simulation and experimental investigation in electromagnetic riveting. Int J Adv Manuf Technol 73, 1751–1763 (2014). https://doi.org/10.1007/s00170-014-5983-4
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DOI: https://doi.org/10.1007/s00170-014-5983-4