电磁成形金属薄板件应变的实验与数值研究

IF 3.3 Q2 ENGINEERING, MANUFACTURING Journal of Manufacturing and Materials Processing Pub Date : 2023-10-05 DOI:10.3390/jmmp7050180
Dorin Luca, Dorian D. Luca
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引用次数: 0

摘要

电磁成形适用于有色金属和有色金属材料的钣金件的成形。本文通过实验研究了铝合金、铜和钢板的电磁成形行为。随着变形能的增大,对圆盘状试样进行电磁自由胀形,得到了不同变形深度的零件。变形是在有和没有夹紧试样边缘运动的情况下完成的。这些样品被印上由直径线和同心圆组成的网格,具有预定的间距。网格用于确定试件变形后网格节点的位移,并以此计算轴向、径向和周向应变。对得到的实验数据进行统计相关和回归分析,建立了每种材料中3种主要应变的数学模型。AlMn0.5Mg0.5和Cu-OF零件的应变在中心处最大,且变化相似,而FeP04零件的应变在中心和边缘之间的中间区域最大。
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Experimental and Numerical Investigations on Strains of Metal Sheet Parts Processed by Electromagnetic Forming
Electromagnetic forming is applied to form metal sheet parts from both non-ferrous and ferrous materials. In this paper, the electromagnetic forming behavior of aluminum alloy, copper and steel sheets was investigated through experiments. The disk-shaped specimens were electromagnetically free bulged with increasing deformation energies and parts with different deformation depths were obtained. The deformation was done with and without clamping the movement of the specimens’ edges. The specimens were printed with a mesh of diametrical lines and concentric circles with a predetermined pitch. The mesh served to determine the displacements in the mesh nodes after the deformation of the specimens, with which the axial, radial and circumferential strains were then calculated. The experimental data obtained was subjected to statistical correlation and regression analyses, and the mathematical models for the three main strains in each material were established. The strains of AlMn0.5Mg0.5 and Cu-OF parts are maximum in the center and have a similar variation, while the FeP04 parts have the maximum strains in an intermediate zone between the center and the edge.
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来源期刊
Journal of Manufacturing and Materials Processing
Journal of Manufacturing and Materials Processing Engineering-Industrial and Manufacturing Engineering
CiteScore
5.10
自引率
6.20%
发文量
129
审稿时长
11 weeks
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