2A12-T4铝合金自冲摩擦铆焊接头力学行为研究

杨炳鑫; 马运五; 山河; 杨天豪; 孙靖; 李永兵

doi:10.7527/S1000-6893.2021.25111

航空学报 >

2022 , Vol. 43 >Issue 2: 625111 - 625111

DOI: https://doi.org/10.7527/S1000-6893.2021.25111

先进航空材料焊接/连接专栏

2A12-T4铝合金自冲摩擦铆焊接头力学行为研究

杨炳鑫 ,
马运五 ,
山河 ,
杨天豪 ,
孙靖 ,
李永兵

展开

1. 上海交通大学机械与动力工程学院, 上海 200240;
2. 上海航天设备制造总厂有限公司, 上海 200245

收稿日期: 2020-12-16

修回日期: 2020-12-25

网络出版日期: 2021-01-21

基金资助

国家自然科学基金（52025058，51805323）；装备发展部领域基金（61409230511）

收起

Mechanical performance of friction self-piercing riveted joint for 2A12-T4 aluminum alloy

YANG Bingxin ,
MA Yunwu ,
SHAN He ,
YANG Tianhao ,
SUN Jing ,
LI Yongbing

Expand

1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2. Shanghai Aerospace Equipment Manufacturer Co., Ltd., Shanghai 200245, China

Received date: 2020-12-16

Revised date: 2020-12-25

Online published: 2021-01-21

Supported by

National Natural Science Foundation of China(52025058, 51805323); Field Fund of Equipment Development Department(61409230511)

Fold

摘要

针对干涉配合铆接中预制孔工序带来的连接效率等问题，采用自冲摩擦铆焊（F-SPR）工艺，通过半空心铆钉高速旋转产生摩擦热软化铝合金，在无预制孔条件下获得机械-固相复合连接接头。根据接头成形质量确定F-SPR工艺合适的转换深度，分析了典型接头的微观组织特征，研究了进给速度对接头宏观形貌、硬度分布及力学性能的影响规律。试验结果表明，转换深度为3.5 mm时可消除多余物、间隙、张开不足及裂纹等缺陷，实现铆钉与板材紧密连接；进给速度主要通过影响接头中母材硬度，进而影响接头拉剪及正拉力学行为。F-SPR工艺接头的拉剪强度约为2A12-T4铝合金母材抗拉强度的80%，相比于电磁铆接及自动压铆工艺具有较大优势。

关键词： 自冲摩擦铆焊; 机械-固相复合连接; 2A12铝合金; 力学性能; 拉剪; 十字拉伸

本文引用格式

杨炳鑫 , 马运五 , 山河 , 杨天豪 , 孙靖 , 李永兵 . 2A12-T4铝合金自冲摩擦铆焊接头力学行为研究[J]. 航空学报, 2022 , 43(2) : 625111 -625111 . DOI: 10.7527/S1000-6893.2021.25111

Abstract

To solve the problem of low joining efficiency caused by the prefabricated hole process in interference fit riveting, the friction self-piercing riveting (F-SPR) process is adopted. By using the friction heat generated from high-speed rotation of the semi-hollow rivet for material softening, a mechanical-solid state hybrid joint is achieved without prefabricated holes. Firstly, an appropriate conversion depth of the F-SPR process is determined according to joint forming quality. Then, the microstructure characteristics of typical joints are analyzed, and the influence of feed rate on the macro morphology, hardness distribution as well as joint mechanical properties are studied. The results show that when the conversion depth is 3.5 mm, the defects such as burrs, gaps, insufficient flaring, and cracks can be effectively eliminated. After the F-SPR process, the rivet and the sheets achieved tight connection. The feed rate mainly affected the hardness of the base material in the joint, and then the tensile-shear and cross-tension strength of the joint. The tensile-shear strength of the F-SPR joint can reach about 80% of the tensile strength of the 2A12-T4 aluminum alloy material, showing that the F-SPR joint has great advantages over the joints made by the electromagnetic riveting and the automatic pressure riveting processes.

Key words： friction self-piercing riveting (F-SPR); mechanical-solid state hybrid joining; 2A12 aluminum alloy; mechanical property; tensile-shear; cross-tension

参考文献

[1] NIE B H, ZHENG Z, ZHAO Z H, et al. Effect of anodizing treatment on the very high cycle fatigue behavior of 2A12-T4 aluminum alloy[J].Materials & Design, 2013, 50:1005-1010.
[2] ZHANG Z H, LI W Y, LI J L, et al. Effective predictions of ultimate tensile strength, peak temperature and grain size of friction stir welded AA2024 alloy joints[J].The International Journal of Advanced Manufacturing Technology, 2014, 73(9-12):1213-1218.
[3] 王仲奇,常正平,郭飞燕,等. 大型飞机壁板无头铆钉干涉连接技术[J].航空制造技术, 2015(4):34-39. WANG Z Q, CHANG Z P, GUO F Y, et al. Interference fit technology of slug rivet in large aircraft panel[J].Aeronautical Manufacturing Technology, 2015(4):34-39(in Chinese).
[4] 常正平,王仲奇,王斌斌,等. 基于镦头不均匀变形的压铆力建模[J].航空学报, 2016, 37(7):2312-2320. CHANG Z P, WANG Z Q, WANG B B, et al. Riveting force computation model based on formed head inhomogeneous deformation[J].Acta Aeronautica et Astronautica Sinica, 2016, 37(7):2312-2320(in Chinese).
[5] 左杨杰,曹增强,杨柳,等. 基于对称加载的均匀干涉配合铆接方法[J].航空学报, 2016, 37(3):1049-1059. ZUO Y J, CAO Z Q, YANG L, et al. Interference-fit evenness riveting method based on symmetrical loading[J].Acta Aeronautica et Astronautica Sinica, 2016, 37(3):1049-1059(in Chinese).
[6] 李奕寰,曹增强,张岐良,等. 铆模倾角对铆接质量的影响研究[J].航空学报, 2013, 34(2):426-433. LI Y H, CAO Z Q, ZHANG Q L, et al. Effect study on riveting quality with different angles of riveting die[J].Acta Aeronautica et Astronautica Sinica, 2013, 34(2):426-433(in Chinese).
[7] DONG Y D, SUN L Q, WANG Q, et al. Influence of electromagnetic riveting process on microstructures and mechanical properties of 2A10 and 6082 Al riveted structures[J].Archives of Civil and Mechanical Engineering, 2019, 19(4):1284-1294.
[8] HOENSCH F, DOMITNER J, SOMMITSCH C. Modeling the failure behavior of self-piercing riveting joints of 6xxx aluminum alloy[J].Journal of Materials Engineering and Performance, 2020, 29(8):4888-4897.
[9] CAI W, WANG P C, YANG W. Assembly dimensional prediction for self-piercing riveted aluminum panels[J].International Journal of Machine Tools & Manufacture, 2005, 45(6):695-704.
[10] SADOWSKI T, KNEC M. Application of DIC technique for monitoring of deformation process of SPR hybrid joints[J].Archives of Metallurgy and Materials, 2013, 58(1):119-125.
[11] DURANDET Y, DEAM R, BEER A, et al. Laser assisted self-pierce riveting of AZ31 magnesium alloy strips[J].Materials & Design, 2010, 31:S13-S16.
[12] ZHAO X Z, MENG D, ZHANG J Y, et al. The effect of heat treatment on die casting aluminum to apply self-pierce riveting[J].International Journal of Advanced Manufacturing Technology, 2020, 109:2409-2419.
[13] JAECKEL M, GRIMM T, LANDGREBE D. Approaches for mechanical joining of 7xxx series aluminum alloys[C]//Proceedings of the 19th International ESAFORM Conference on Material Forming, 2016.
[14] WANG J W, LIU Z X, SHANG Y, et al. Self-piercing riveting of wrought magnesium AZ31 sheets[J].Journal of Manufacturing Science and Engineering-Transactions of the ASME, 2011, 133(3):031.
[15] 陆轶,赵运强,董春林,等. 6061-T6铝合金搅拌摩擦点焊接头微观组织与力学性能研究[J].热加工工艺, 2020, 49(5):12-24. LU Y, ZHAO Y Q, DONG C L, et al. Study on microstructure and mechanical Properties of 6061-T6 aluminum alloy friction stir spot welded joint[J].Hot Working Technology, 2020, 49(5):12-24(in Chinese).
[16] 黄永宪, 吕宗亮, 万龙, 等. 钛/铝异质金属搅拌摩擦焊技术研究进展[J].航空学报, 2018, 39(11):022154. HUANG Y X, LYU Z L, WAN L, et al. Review of dissimilar friction stir welding between titanium and aluminum[J].Acta Aeronautica et Astronautica Sinica, 2018, 39(11):022154(in Chinese).
[17] LI Z W, YUE Y M, JI S D, et al. Optimal design of thread geometry and its performance in friction stir spot welding[J].Materials & Design, 2016, 94:368-376.
[18] LIU H J, ZHAO Y Q, SU X Y, et al. Microstructural characteristics and mechanical properties of friction stir spot welded 2A12-T4 aluminum alloy[J].Advances in Materials Science and Engineering, 2013, 2013:719306.
[19] SCHILLING C, DOS S J. Method and device for linking at least two adjoining work pieces by friction welding:European. EP1230062A1[P]. 2002.
[20] LI G H, ZHOU L, WU X M, et al. Microstructural evolution and mechanical properties of refill friction stir spot welded alclad 2A12-T4 aluminum alloy[J].Journal of Materials Research and Technology, 2019, 8(5):4115-4129.
[21] Li Y B, WEI Z Y, WANG Z Z, et al. Friction self-piercing riveting of aluminum alloy AA6061-T6 to magnesium alloy AZ31B[J].Journal of Manufacturing Science and Engineering, 2013, 135(6):061007.
[22] LIU X, LIM Y C, LI Y X, et al. Effects of process parameters on friction self-piercing riveting of dissimilar materials[J].Journal of Materials Processing Technology, 2016, 237:19-30.
[23] MA Y W, HE G Z, LOU M, et al. Effects of process parameters on crack inhibition and mechanical interlocking in friction self-piercing riveting of aluminum alloy and magnesium alloy[J].Journal of Manufacturing Science and Engineering, 2018, 140(10):101015.
[24] MA Y W, LI Y B, LIN Z Q. Joint formation and mechanical performance of friction self-piercing riveted aluminum alloy AA7075-T6 joints[J].Journal of Manufacturing Science and Engineering, 2019, 141(4):041005.
[25] MA Y W, YANG B X, LOU M, et al. Effect of mechanical and solid-state joining characteristics on tensile-shear performance of friction self-piercing riveted aluminum alloy AA7075-T6 joints[J].Journal of Materials Processing Technology, 2020, 278:116543.
[26] 李永兵, 马运五, 楼铭, 等. 用于自冲摩擦铆焊的铆钉及其自冲摩擦铆焊连接系统:中国, ZL201610566456.3[P]. 2018-04-10. LI Y B, MA Y W, LOU M, et al. Rivet design and system development of the friction self-pierced riveting process. China, ZL201610566456.3[P]. 2018-04-10.
[27] 陈高强,史清宇. 搅拌摩擦焊中材料流动行为数值模拟的研究进展[J].机械工程学报, 2015, 51(22):11-21. CHEN G Q, SHI Q Y. Recent Advances in numerical simulation of material flow behavior during frictions stir welding[J].Journal of Mechanical Engineering, 2015, 51(22):11-21(in Chinese).
[28] KILPATRICK W, BROWN D, MCMURRAY R J, et al. The effect of serrated yielding on the determination of r-values in aluminium alloys and yield locus calibration[J].Materials Science and Engineering:A, 2010, 527(29-30):7557-7564.
[29] 王浩一,曹增强,梁琳,等. 基于手持式电磁铆接设备的无头铆钉干涉配合铆接工艺研究[J].机械科学与技术, 2010, 29(8):1017-1020. WANG H Y, CAO Z Q, LIANG L, et al. On headless rivet interference-fit riveting based on hand-held electromagnetic riveting equipment[J].Mechanical Science and Technology for Aerospace Engineering, 2010, 29(8):1017-1020(in Chinese).

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献