超声自冲铆复合连接成形性及力学行为研究  

Formability and mechanical behaviors of ultrasonic self-piercing riveting

作　　者：许龙 霍小乐 林森 周光平[2] 梁召峰[2] 赵升升[2] 罗义 赵伦 张亮 何晓聪[3] XU Long;HUO Xiaole;LIN Sen;ZHOU Guangping;LIANG Zhaofeng;ZHAO Shengsheng;LUO Yi;ZHAO Lun;ZHANG Liang;HE Xiaocong(College of Science,China Jiliang University,Hangzhou 310018,China;Institute of Intelligent Manufacturing Technology,Shenzhen Polytechnic,Shenzhen 518055,China;Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]中国计量大学理学院,杭州310018 [2]深圳职业技术学院智能制造技术研究院,深圳518055 [3]昆明理工大学机电工程学院,昆明650500

出　　处：《应用声学》2023年第2期386-392,共7页Journal of Applied Acoustics

基　　金：国家自然科学基金项目(12104324,12074354);中国博士后科学基金项目(2021M703392);深圳职业技术学院博士后启动基金项目(6021330001K)。

摘　　要：该文选用6061和2A12航空铝合金薄板材料,进行自冲铆接和超声自冲铆复合连接试验,基于拉伸-剪切和电子显微镜测试,研究超声自冲铆接成形性及力学行为。结果表明:超声自冲铆接头较自冲铆接头的内锁量提升了44.8%;其钉头高度下降了34.4%;超声自冲铆接头的静载强度提升了18.1%,缓冲吸震性能提升了17.5%;超声焊接致使自冲铆接头的铆钉颈部与上板接触区域、铆钉腿部与上板接触区域形成固相焊;超声焊接可有效提高自冲铆接头的稳定性。The 6061 and 2A12 aerospace aluminum alloy sheet materials are selected to conduct self-piercing riveting(SPR)and ultrasonic self-piercing riveting(USPR)composite joining tests.Based on tensile-shear and electron microscope tests,the forming quality and mechanical behaviors of USPR are studied in this paper.The results show that the interlock of the USPR joint is increased by 44.8%compared with that of SPR joint;the height of rivet head is reduced by 34.4%;the static strength of the USPR joint is increased by 18.1%,and the shock absorption performance is increased by 17.5%;the welding causes the contact area between the rivet neck and the upper plate of the SPR joint,and the contact area between the rivet leg and the upper plate to form solid phase welding;ultrasonic welding can effectively improve the stability of SPR joint.

关 键 词：超声自冲铆接 超声波金属焊接 自冲铆 成形质量 力学行为 

分 类 号：TB559[理学—物理]