粘接剂对酸性环境中自冲铆接头静力学性能的影响

周路; 邢保英; 何晓聪; 曾凯; 靳文豪

doi:10.13433/j.cnki.1003-8728.20200559

粘接剂对酸性环境中自冲铆接头静力学性能的影响

doi: 10.13433/j.cnki.1003-8728.20200559

昆明理工大学机电工程学院，昆明　650500

基金项目: 国家自然科学基金项目（51565022）与云南省应用基础研究计划青年项目（14051848）

详细信息

作者简介:
周路（1996−），硕士研究生，研究方向为薄板材料连接，1174158432@qq.com

通讯作者:
邢保英，副教授，硕士生导师，xbb0808@163.com

中图分类号: TH131.1
计量
- 文章访问数: 170
- HTML全文浏览量: 48
- PDF下载量: 12
- 被引次数: 0
出版历程
- 收稿日期: 2020-11-20
- 刊出日期: 2023-02-25

Effect of Adhesives on Static Properties of Self-piercing Riveted Joints under Acidic Environment

Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China

摘要

摘要: 以AA5052-AA5052自冲铆接头（MJ）和AA5052-AA5052粘-铆复合接头（ZM）为研究对象，0.02 mol/L的NaHSO₃溶液作为腐蚀液，通过干湿周浸实验、静力学测试和能谱分析，对失效载荷、失效形式以及形貌变化进行分析，对比两组接头的静力学性能。结果表明：粘接剂的使用，对接头静强度有一定的促进作用；由于腐蚀产物的影响，接头静强度均呈现先减小后增大的趋势；粘接剂减小接头的能量吸收值，腐蚀时间对接头缓冲吸震的能力未产生较大影响；MJ失效形式均为T型失效，ZM分为T型和C型失效，接头失效形式也受粘接剂的影响；板材表面成分和铆钉腐蚀后也发生明显变化。
- 自冲铆 /
- 腐蚀 /
- 粘接剂 /
- 静力学性能
Abstract: The self-piercing riveted joint of AA5052-AA5052 (MJ) and adhesive-riveting composite joint of AA5052-AA5052 (ZM) were studied. Using 0.02 mol/L NaHSO₃ solution as corrosion condition, the failure load, failure mode and morphology were analyzed by cyclic wet-dry immersion corrosion test, statics test and energy dispersive X-ray. The static properties of the two sets of joints were compared. The results show that the adhesive has a promoting effect on the static strength of the joint. Due to the influence of the corrosion products, the static strength of the joint decreases first and then increases. The adhesive reduces the energy absorption value of the joint, and the corrosion time has no great influence on the capacity of the joint to buffer and absorb vibration. The failure mode of MJ is T type failure, and ZM presents T type failure and C type failure, thus failure mode of the joint is also affected by the adhesive. The surface composition of sheet and rivet also changed obviously after corrosion.
- self-piercing riveting /
- corrosion /
- adhesive /
- static performance

HTML全文

图 1 结构示意图

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图 2 载荷-位移-刚度曲线

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图 3 接头失效载荷

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图 4 能量吸收值

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图 5 接头失效形式

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图 6 板材表面及铆钉表面形貌变化

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图 7 试件表面能谱分析

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