摘要
汽车生产中车身钢板与铝合金薄板的连接主要采用自冲铆接。基于仿真软件研究5754铝合金与双相钢的自冲铆接过程,采用上铝下钢的搭接组合,对比不同强度双相钢的铆接结果的变化,分析其铆接接头的形成过程和剪切拉伸过程。结果表明,最大剪切力与互锁值和底部最小厚度有关,随着双相钢强度的增加(DP450、DP600、DP800),铆接接头的互锁值变小,底部最小厚度变大,综合其拉伸性能,双相钢强度为DP600时,铆接接头性能最优。
Self-piercing riveting(SPR) technology has been widely used in the connection of steel sheets and aluminum alloy sheets of a variety of material car bodies. And self-piercing riveting simulation technology is an important means to study self-piercing riveting technology. Based on SORPAS software, This paper studies the self-piercing riveting process of five-series aluminum alloy 5754 and dual-phase steel by simulation. Upper aluminum sheet and lower steel sheet is used for the lapping combination. With the increase of the strength of dual-phase steel, the variation of riveting results and the formation process and the tensile shear process of the rivet joints are analyzed. The simulation results show that as the strength of dual-phase steel increases(DP450, DP600, DP800), the interlock value of the riveted joint decreases and the bottom minimum thickness increases. Considering its tensile properties, the performance of the riveted joint of DP600 is the best.
作者
伊日贵
张永强
李学涛
付参
YI Rigui;ZHANG Yongqiang;LI Xuetao;FU Can(Shougang Research Institute of Technical,Beijing 100043,China)
出处
《电焊机》
2022年第12期96-102,共7页
Electric Welding Machine
关键词
自冲铆接
5754铝合金
双相钢
数值模拟
self piercing riveting
5754 aluminum alloy
dual-phase steel
numerical simulation
