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  

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 Qiu Li;He Qin;Liu Hongchi(College of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443002,China;State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002 [2]华中科技大学先进电磁工程与技术国家重点实验室,湖北武汉430074

出　　处：《锻压技术》2023年第5期245-253,共9页Forging & Stamping Technology

基　　金：国家自然科学基金资助项目(51877122,51507092)。

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.

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[电气工程—电工理论与新技术]