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Date of Publication:2022-10-06

Journal:华中科技大学学报 自然科学版

Affiliation of Author(s):运载工程与力学学部

Issue:1

Page Number:92-97

ISSN No.:1671-4512

Abstract:Aiming at the forming of complex curved hull aluminium alloy plate ,a technology of elec‐tromagnetic force assisted line heating (EFALH) for aluminium alloy plate was proposed .Firstly ,the device and experimental procedure of EFALH process were introduced ,and the auxiliary effect of e‐lectromagnetic force was proved by experimental data . Secondly , with regard to the process of EFALH for the 5083 aluminium alloy plate , the 3D numerical simulation was conducted by the ANSYS FEM software .Thirdly ,based on numerical simulation ,the influence rule of electromagnetic force assisted time and current amplitude was investigated ,and on this base ,the formation mechanism of aluminium sheet during the EFALH was analyzed from the cyclicity of electromagnetic force and e‐lectromagnetic stress loading cycles and unloading cycles .

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