锻压技术

基于磁场变换器的管件电磁压缩电磁力分布及变形均匀性分析

英文标题：Analysis on electromagnetic force distribution and deformation uniformity for tube electromagnetic compression based on magnetic field converter

作者：邱立1 2 何琴1 刘洪池1

单位：1. 三峡大学电气与新能源学院 2. 华中科技大学先进电磁工程与技术国家重点实验室

关键词：电磁成形磁场变换器电磁压缩电磁力变形均匀性

分类号：TM154

出版年,卷(期):页码：2023,48(5):245-253

摘要：

针对传统管件在电磁压缩过程中变形不均匀的问题，提出了基于磁场变换器的管件电磁压缩新方法，通过磁场变换器改变传统单线圈的电磁力分布，进而改善管件的变形均匀性。建立管件电磁压缩的电磁-结构耦合模型，探究磁场变换器的几何参数对电磁力的影响，并对比分析了传统单线圈与新方法在电磁力分布和变形均匀性方面的优劣。结果表明：磁场变换器的引入能够改变电磁力的峰值位置，其结构参数能够对电磁力的大小和方向进行调控，管件的变形均匀性较传统线圈提高了4倍。因此，基于磁场变换器的加载方式能够有效解决管件电磁压缩过程中的变形均匀性问题，促进了电磁成形的发展。

For the problem of non-uniform deformation of traditional tube in the process of electromagnetic compression, a new electromagnetic compression method of tube based on magnetic field converter was proposed, which through the magnetic field converter to change the electromagnetic force distribution of the traditional single coil, and then improved the deformation uniformity of tube. The electromagnetic-structure coupling model of electromagnetic compression for tube was established, the influences of the geometric parameters of magnetic field converter on the electromagnetic force were studied, and the advantages and disadvantages of the traditional single coil and the new method in electromagnetic force distribution and deformation uniformity were compared and analyzed. The results show that the magnetic field converter can change the peak position of electromagnetic force, its structure parameters can control the magnitude and direction of electromagnetic force, and the deformation uniformity of tube is four times higher than that of the traditional coil. Therefore, the loading method based on magnetic field converter can effectively solve the problem of deformation uniformity of tube during electromagnetic compression process, and promote the development of electromagnetic forming.

基金项目：

国家自然科学基金资助项目（51877122,51507092）

作者简介：邱立（1984-），男，博士，副教授,E-mail：Doctor_QiuL@163.com;通信作者：刘洪池（1997-），女，硕士研究生,E-mail：844270214@qq.com

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