自激励式电磁铆接放电电流分析

doi:10.7527/S1000-6893.2016.0271

材料工程与机械制造

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自激励式电磁铆接放电电流分析

邓将华, 程溧, 王林峰

福州大学机械工程及自动化学院, 福州 350116

收稿日期:2016-08-09 修回日期:2016-09-05 出版日期:2017-05-15 发布日期:2016-10-24
通讯作者: 邓将华 E-mail:jhdeng@fzu.edu.cn
基金资助:
国家自然科学基金（50905032）；福建省教育厅省高校自然基金青年重点项目（JZ160417）

Discharge current in self-excited electromagnetic riveting

DENG Jianghua, CHENG Li, WANG Linfeng

School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350116, China

Received:2016-08-09 Revised:2016-09-05 Online:2017-05-15 Published:2016-10-24
Supported by:
National Natural Science Foundation of China (50905032);Key Project of Provincial University Natural Foundation for Young Scholar of Fujian Provincial Department of Education (JZ160417)

摘要/Abstract

摘要：

电磁铆接是一种将电磁能转化为机械能的铆接工艺。传统感应式低电压电磁铆接存在能量利用率低、难以解决高强度大直径铆钉和难成形材料铆钉的铆接等问题。基于自激励式电磁铆接技术，建立放电电流分析模型，通过数值分析与工艺试验探讨自激励式电磁铆接进行大直径铆钉成形的可行性。研究结果表明建立的电磁铆接放电电流分析模型可实现传统感应式和自激励式电磁铆接放电电流分析，分析结果与试验吻合较好；放电能量相同时，自激励式电磁铆接的涡流斥力峰值要远大于感应式的涡流斥力，能有效提高能量利用率，是实现大直径铆钉成形的有效方式；在放电电压为320 V时，自激励式电磁铆接可实现直径为10 mm的45号钢铆钉的成形，其变形以绝热剪切的方式进行。

关键词: 电磁铆接, 自激励式, 放电电流, 大直径铆钉, 绝热剪切

Abstract:

Electromagnetic riveting is a riveting technology for transforming electromagnetic energy into mechanical energy. By traditional induction low voltage electromagnetic riveting, it is difficult to solve the problems of low energy efficiency, and riveting of high strength and large diameter rivet and hard forming material rivet. Based on self-excited electromagnetic riveting technology, the analysis model of discharge current is established. The feasibility of large diameter rivet forming is investigated by numerical analysis and process experiment. The results show that the model for discharge current analysis can realize the discharge current analysis of traditional induction and self-excited electromagnetic riveting. The analysis results are in good agreement with those of the experiment. When the discharge energy is the same, the eddy current repulsion peak of the self-excited electromagnetic riveting is much larger than that of the induction. The self-excited electromagnetic riveting can effectively improve the energy utilization rate, and is the effective way for the forming of large diameter rivets. When the discharge voltage is 320 V, self-excited electromagnetic riveting can deform the 45 steel rivet with 10 mm diameter, and the rivet deformation is carried out by adiabatic shearing.

Key words: electromagnetic riveting, self-excitation, discharge current, large diameter rivet, adiabatic shearing

中图分类号:

V262.4

邓将华, 程溧, 王林峰. 自激励式电磁铆接放电电流分析[J]. 航空学报, 2017, 38(5): 420669-420669.

DENG Jianghua, CHENG Li, WANG Linfeng. Discharge current in self-excited electromagnetic riveting[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(5): 420669-420669.

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自激励式电磁铆接放电电流分析

Discharge current in self-excited electromagnetic riveting

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