Numerical simulation and experimental study based on electromagnetic forming of array of micro channel

The finite element model of electromagnetic micro forming on metal foil was established based on the finite element simulation platform. The finite element simulation was performed on the array of micro channel formed by electromagnetic micro-forming. The distribution of magnetic stress of uniform stress coil and dynamic response process of typical points in different area were obtained in electromagnetic forming process. The simulation results show that the electromagnetic forming can provide uniform distribution stress on the deformation region. At the same time, various degrees of rebound phenomenon takes place on different typical dots on the component plane area after colliding with die surface. Electromagnetic micro-forming experiment was conducted on the array of micro channels by concave and convex mold. The filling ratio of the micro channels was 93% and 100% respectively. The relative error of filling ratio between micro channels was 0.014 8 and 0.019 6 respectively. Results show that array channel components with favorable consistency can be formed by the electromagnetic forming.