密封电磁铆接数值模拟分析

Numerical Simulation Analysis of Seal Electromagnetic Riveting

摘要: 本文通过数值模拟的方法，分析不同划窝形式、不同底孔直径、不同镦头形式和不同放电电压密封电磁铆接的等效应变云图和干涉量。双划窝形式接头干涉量优于单划窝和无划窝形式，不同孔底直径的干涉量变化趋势几乎一致，凸台形镦头的干涉量优于常规鼓形镦头，随着放电电压的增加干涉量增加。

Abstract: In this paper, by means of numerical simulation, the equivalent strain cloud images and interfer-ences of electromagnetic riveting with different groove forms, different diameters, different up-setting head forms and different discharge voltages are analyzed. The interferences of the joint in the form of double notched nests are better than those in the form of single notched nests and on notched nests. The variation trend of the interference is almost the same for different diameters of bottom hole. The interference of boss upsetting head is better than that of conventional drum up-setting head. The interface increases with the increase in discharge voltage.