3D Numerical simulation method of electromagnetic forming for low conductive metals with a driver
3D Numerical simulation method of electromagnetic forming for low conductive metals with a driver
复制标题
带驱动器的低导电金属电磁成形3D数值模拟方法
DOI：
10.1007/s00170-012-4124-1
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发表时间：
2013-02-01
影响因子：
3.4
通讯作者：
Fang, Yang
中科院分区：
文献类型：
--
作者：
Li, Fenqiang;Mo, Jianhua;Fang, Yang
电磁成形是一种能抑制翘曲、减小回弹、改善材料室温成形性能的高速成形工艺。通常，电磁成形工艺应用于高导电性金属，如铜、铝及其合金。为了解决钛合金成形性差的问题，可以采用电磁成形工艺对钛合金进行成形。在使用电动势工艺之前，必须研究对钛和其他低导电性金属成形性能的影响。为此，本文提出了一种工具：带驱动的电磁成形三维数值模拟方法。首先，利用有限元分析软件Ansys/EMAG计算了电磁场的分布和电磁力。然后将得到的数据导入ABAQUS/EXPLICIT软件进行机械分析。虽然电磁场计算没有考虑毛坯的变形，但计算结果准确地反映了毛坯的变形规律。这种方法特别适用于包含小变形的情况，例如管子压缩和压花。该计算还可用于模拟驱动件与毛坯之间的冲击成形过程。
Electromagnetic forming (EMF) process is a high-speed forming process which can inhibit warping, reduce springback, and improve the formability of material at room temperature. In general, the electromagnetic forming process is applied to high-conductive metals such as copper, aluminum, and their alloys. In order to solve the problem of the low formability of titanium alloy, the electromagnetic forming process can be applied to form titanium alloy. The effects on the forming properties of titanium and other low-conductive metals must be studied before the EMF process is used. To that end, this paper presents a tool: a 3D numerical simulation method of electromagnetic forming with a driver. First, the electromagnetic field distribution and electromagnetic forces are calculated using the ANSYS/EMAG software. The resulting data are then imported to ABAQUS/Explicit software to carry out mechanical analysis. Although the electromagnetic field calculation does not take the deformation of the blank into account, the results accurately reflect the law of the deformation. This method is especially suitable for cases involving small deformations, such as tube compression and embossing. The calculation can also be used to simulate the impact forming process between the driver and the blank.