锻压技术

镁-铝异种合金自冲铆接接头的力学性能

英文标题：Mechanical properties of self-piercing riveted joint for Mg-Al dissimilar alloys

作者：卢杰豪1 2 赵伦1 3 张俊凯2 雷乐1 李承旺1 刘高宇1 刘纪元1 Md Shafiqul Islam4

单位：（1.深圳职业技术大学超声技术研究所广东深圳 518055 2.辽宁科技大学材料与冶金学院辽宁鞍山 114051 3.云南开放大学机电工程学院云南昆明 650599 4.瑞典布京理工学院机械学院瑞典卡尔斯克鲁纳 37179)

分类号：TH131.1

出版年,卷(期):页码：2024,49(9):157-163

摘要：

镁合金材料在车身轻量化制造方面具有巨大的潜力和应用空间，选取不同厚度的AZ31B镁合金和5083铝合金薄板材料进行自冲铆接，并通过拉伸实验和扫描电镜分析接头的静力学性能及微观组织。结果表明：自冲铆接能实现对AZ31B镁合金和5083铝合金薄板的有效连接；板厚搭配均匀的自冲铆接接头的整体力学性能最优；镁板厚度较小的自冲铆接接头的失效形式均为上板断裂，其余两组自冲铆接接头的失效形式均为下板拉脱；3组不同镁板厚度组合的自冲铆接接头断口均呈脆性断裂形貌。

Magnesium alloy have great potential and application space in lightweight manufacturing of car body. Therefore, AZ31B magnesium alloy and 5083 aluminum alloy thin plates with different thicknesses for the self-piercing riveting were selected, and the static properties and microstructure of joints were analyzed by tensile test and scanning electron microscopy (SEM) test. The results show that the self-pierce riveting can achieve effective connection between AZ31B magnesium alloy and 5083 aluminum alloy thin plates. The overall mechanical properties of the self-piercing riveting joints with uniform plate thickness are optimal. The failure mode of the self-piercing riveting joints with smaller magnesium plate thickness is the fracture of upper plate, and the failure mode of the other two sets of the self-piercing riveting joints is the pulling off of lower plate. The fracture surface of the self-piercing riveting joints with three different magnesium plate thicknesses shows brittle fracture morphology.

基金项目：

基金项目:国家自然科学基金资助项目（12104324）；高层次人才科研启动项目（6022310046k）；深职大-新栋力超声波焊接技术研发中心（602331009PQ）；深圳职业技术大学博士后出站后期资助项目(4103-6023271014K1);云南省教育厅科学研究基金资助项目（2022J0599）

作者简介：卢杰豪（1998-），男，硕士研究生 E-mail：13229438230@163.com 通信作者：赵伦（1988-），男，博士，副研究员 E-mail：zhaolun@szpt.edu.cn

参考文献：

\[1］戴云鹏.汽车轻量化中自冲铆连接技术的工艺特点\[J］.机电技术,2017(1):61-63.

Dai Y P. Process characteristics of self-pierce riveting connection technology in automotive lightweighting\[J］. Mechatronics,2017(1):61-63.

\[2］谢贵山,黄宗斌,赵肖斌,等.汽车车身的轻量化设计探讨\[J］.汽车零部件,2023,176(2):80-84.

Xie G S,Huang Z B,Zhao X B,et al. Discussion on lightweight design of automobile body\[J］.Automobile Parts,2023,176(2):80-84.

\[3］张娜,李海鹏,葛广跃,等.车身轻量化设计方法及应用\[J］.汽车实用技术,2022,47(10):179-183.

Zhang N, Li H P, Ge G Y, et al. Lightweight design methods and applications of body\[J］. Automotive Practical Technology,2022,47(10):179-183.

\[4］田萌.多材料结构汽车车身的轻量化设计研究\[J］.汽车实用技术,2021,46(17):134-136.

Tian M. Research on lightweight design of automobile body with multi material structure\[J］. Automobile Applied Technology, 2021,46(17):134-136.

\[5］雷乐,赵伦,高山凤，等.铝钛异种薄板冷连接工艺及力学性能研究\[J］.锻压技术,2023,48(7):100-106.

Lei L,Zhao L,Gao S F,et al.Cold joining process and mechanical property study for Al-Ti dissimilar plates\[J］.Forging & Stamping Technology, 2023,48(7):100-106.

\[6］杜越,王明星,刘忠侠,等.摩擦加热AZ31镁合金板材的自冲铆接\[J］.热加工工艺,2011,40(15):152-156.

Du Y,Wang M X,Liu Z X,et al. Self-piercing riveting of friction-heated AZ31 alloy sheet\[J］.Hot Working Technology,2011,40(15):152-156.

\[7］郭兴伍,陈娟,李晔,等.镁/钢异种板自冲铆连接及耐腐蚀性能研究\[J］.机械设计与制造,2023,383(1):116-119.

Guo X W,Chen J,Li Y,et al. Study on high speed self-piercing riveting connection of magnesium/steel dissimilar plates and its corrosion resistance\[J］.Machinery Design ＆ Manufacture,2023,383(1):116-119.

\[8］ Li Y,Lim Y C,Chen J, et al. Mechanical joint performances of friction self-piercing riveted carbon fiber reinforced polymer and AZ31B Mg alloy\[J］. Journal of Magnesium and Alloys,2022,10(12):3367-3379.

\[9］ Easton M,Beer A, Barnett M,et al. Magnesium alloy applications in automotive structures\[J］.JOM,2008,60(11):57-62.

\[10］刘洋,何晓聪,邓聪.铝合金-泡沫铜“三明治”结构自冲铆接可连接性研究\[J］.力学季刊,2017,38(4):801-806.

Liu Y,He X C,Deng C. Study on the connectability of self-piercing riveted joints in aluminum alloy-copper foam “sandwich” structure\[J］.Chinese Quarterly of Mechanics,2017,38(4):801-806.

\[11］杜爱民,陈垚伊,韩业扬.三层板自冲铆接各层厚度组合对铆接质量的影响\[J］.机械,2022,49(4):1-6.

Du A M,Chen Y Y,Han Y Y. Influence of thickness combination of three-layer plate self-piercing rivetingon riveting quality\[J］.Machinery,2022,49(4):1-6.

\[12］GB/T 16957—2012,复合钢板焊接接头力学性能试验方法\[S］.

GB/T 16957—2012,Clad teel plats—Mechanical technical tests on welded joints\[S］.

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