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首页> 外文期刊>Journal of Manufacturing Processes >Investigation of the electromagnetic attractive forming utilizing a dual-coil system for tube bulging
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Investigation of the electromagnetic attractive forming utilizing a dual-coil system for tube bulging

机译：利用双线圈系统进行鼓胀的电磁吸引成形研究

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The electromagnetic force between the tube and the coil is generally dominated by repulsive Lorentz force in the existing electromagnetic tube forming systems. In these cases, the coil has to be placed inside the tube for tube bulging, which makes it difficult to achieve when the inner space of the tube is not large enough to accommodate the coil. To solve this problem, a new electromagnetic tube bulging process with an external dual-coil system was developed in this work. According to both numerical and experimental studies, it has been demonstrated that the AA6061-O aluminum alloy tube with a diameter of 33 mm and a thickness of 1 mm can be attracted toward the coil, and the maximum deformation is more than 4 mm after a single discharge. Meanwhile, the tube deformation can be significantly increased by multiple discharges using the attractive forming process. Furthermore, a series of simulations and experiments were carried out to systematically investigate the attractive forming behavior of the tube under different discharge conditions, showing that the discharge voltages of the two coils and the current waveform controlled by a crowbar circuit have a great impact on the tube forming.
机译：在现有的电磁管成型系统中，管和线圈之间的电磁力通常由洛伦兹排斥力控制。在这些情况下，必须将线圈放置在管子内部以使管子鼓出，这使得当管子的内部空间不足以容纳线圈时很难实现。为了解决这个问题，这项工作开发了一种带有外部双线圈系统的新型电磁管鼓胀工艺。根据数值和实验研究，已经证明，直径为33 mm，厚度为1 mm的AA6061-O铝合金管可以被吸引到线圈上，经过A的最大变形大于4 mm。单次放电。同时，采用引人注目的成型工艺，多次放电可显着增加管的变形。此外，进行了一系列模拟和实验，系统地研究了在不同放电条件下管子的吸引成形行为，结果表明，两个线圈的放电电压和由撬棍电路控制的电流波形对管的影响很大。管成型。

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