Numerical and Experimental Studies on Electromagnetic Pulse Crimping of Joining D9 Steel Tube on SS316L (N) Plug
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Date
2025-08-26
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Abstract
Electromagnetic Pulse crimping process is an advanced technique that utilises high-intensity
electromagnetic forces to deform and join metallic components. This study investigates
numerical simulations and experimental work on the EM crimping process used to crimp the
D9 steel tube to SS316L (N) plug. Optimum values of tube impact velocity and displacement
at the D9 steel tube with SS316L (N) plug are determined using COMSOL© Multiphysics
simulations. Effects of process parameters such as current, magnetic field, plastic strain,
impact velocity and voltage levels are investigated for their effect on crimping of D9 tube.
In an EM Pulse crimping process experimental RLC setup was used for producing the
excitation current. Experiments are performed for different discharge voltages for D9 steel
tube, SS316L (N) plug, copper driver and field shaper setup. The metallurgical
characterisation was performed using optical microscopy to check the weld line for bonding.
The experimental and simulation data show good agreement for the deformation of the D9
tube. As voltage or energy input increases, keeping RLC constant, an increase in impact
velocity, effective plastic strain, deformation, and peak coil current is observed. At the same
time, the frequency of the current remains constant, which is favourable for EM Pulse
crimping.
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Keywords
Electromagnetic Pulse crimping, Voltage, Magnetic Flux density, Impact Velocity
Subjects based on RSWK
Crimpen, Magnetischer Fluss, Elektrische Spannung, Plastische Deformation, COMSOL Multiphysics, Experiment, Stahlrohr, Edelstahl