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Current frequency effect on electromagnetic tube expansion
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2020The frequency of capacitor discharge current is an important parameter in the electromagnetic forming process. In the present work, simulation and experimental study of electromagnetic expansion is carried out on aluminium tubes (Al 5052). The aim is to obtain the optimum frequency of discharge current that gives maximum tube expansion at constant ...
Shantaram Dond
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IEEE Transactions on Applied Superconductivity, 2018
At present, the cylindrical coil is used to generate the electromagnetic force in electromagnetic tube expansion process. The obtained radial electromagnetic force in the end of the tube is less than the one in the middle of the tube for the end effects. Hence, the tube deformation is inhomogeneous in the axial direction.
Qi Xiong, Li Qiu, Xiaotao Han
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At present, the cylindrical coil is used to generate the electromagnetic force in electromagnetic tube expansion process. The obtained radial electromagnetic force in the end of the tube is less than the one in the middle of the tube for the end effects. Hence, the tube deformation is inhomogeneous in the axial direction.
Qi Xiong, Li Qiu, Xiaotao Han
exaly +2 more sources
Numerical and experimental investigation in electromagnetic tube expansion with axial compression
International Journal of Advanced Manufacturing Technology, 2019In conventional electromagnetic tube expansion (EMTE), the wall thickness of the tube decreases significantly because the electromagnetic force is mainly in the radial direction. To solve this problem, this paper proposes a new method named electromagnetic tube expansion with axial compression (EMTEAC).
Yantao Li, Pan Su, Qi Xiong
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Numerical Modeling of Electromagnetic Tube Expansion and Formability Assessment
Key Engineering Materials, 2013In the present paper, an EMF numerical model has been developed following an uncoupled approach, being the Lorentz forces acting on the workpiece estimated by solving Maxwells equations and then transferred to solve the mechanical problem. For formability analysis, a fracture indicator based on the linear forming limit diagram was applied through the ...
Inês Oliveira, Pedro Teixeira, Ana Reis
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