Abstract
Electromagnetic crimping is a high-speed joining by forming method that deforms electrically conducting materials using an electromagnetic field. This paper explores the finite element modelling of electromagnetic crimping of Cu-SS tube-to-tube joint with the use of LS-DYNA™ software which utilizes finite element method combined with the boundary element method. Simulations are performed at five different discharge energy values and stand-off distance, as well as the overlapped length of the tube is kept constant. Effect of discharge energies on the magnetic field, radial displacement and impact velocity and effect of plastic strain have been studied. The maximum magnetic field of 17 T is obtained at 6.2 kJ of discharge energy. The developed model can be used as a primary study to investigate interference-fit tube-to-tube joining by electromagnetic forming.
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