Joining aluminum to steel dissimilar metals using novel resistance spot welding process

被引：16

作者：

Li, Mingfeng ^{[1
,2
]}

Yang, Shanglu ^{[1
,3
]}

Wang, Yanjun ^{[1
]}

Tao, Wu ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

来源：

MATERIALS LETTERS | 2022年 / 318卷

关键词：

Aluminum alloys; Press hardened steel; Welding; Microstructure; Intermetallic compounds;

D O I：

10.1016/j.matlet.2022.132215

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Reliable welding of aluminum to steel dissimilar metals is of great significance in the automotive industry, which promotes lightweight automobile body structure. Here we propose an innovative resistance spot welding process to weld the AA6016 aluminum alloy and press hardened steel. Experimental results shown that the expulsion pulse, intentionally set, can instantly pushed out the molten aluminum from the interface in the form of expulsion. Furthermore, the locking plate contacts the steel workpiece and/or even achieve micro-connection through forming a small steel weld nugget. After the welding current pulse was applied, the locking plate and the steel workpiece were strongly joined together and produce a large steel weld nugget with a diameter greater than 5 mm. Moreover, the aluminum workpiece was tightly locked between the locking plate and the steel, thus achieving an effective joint between aluminum and steel.

引用

页数：5

共 8 条

[1] Migration behavior of IMC layer in twin-spot laser welding-brazing of aluminum to steel [J].

Deng, Shengjie ;

Yuan, Rui ;

Tang, Xinhua ;

Lu, Fenggui .

MATERIALS & DESIGN, 2020, 188

[2] Effect of composition, annealing temperature, and high pressure torsion on structure and hardness of Ti-V and Ti-V-Al alloys [J].

Gornakova, Alena S. ;

Straumal, Alexandr B. ;

Khodos, Igor I. ;

Gnesin, Ivan B. ;

Mazilkin, Andrey A. ;

Afonikova, Natalia S. ;

Straumal, Boris B. .

JOURNAL OF APPLIED PHYSICS, 2019, 125 (08)

[3]

Li M.F., 2021, Chinese patent application, Patent No. [CN113857637A, 113857637]

[4] Resistance rivet welding of magnesium/steel dissimilar materials [J].

Niu, Sizhe ;

Lou, Ming ;

Ma, Yunwu ;

Yang, Bingxin ;

Shan, He ;

Li, Yongbing .

MATERIALS LETTERS, 2021, 282

[5] Formability behavior of Al/steel MIG arc brazed-fusion welded joint [J].

Qin, Guoliang ;

Ao, Zhiyong ;

Chen, Yong ;

Zhang, Cunsheng ;

Geng, Peihao .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2019, 273

[6]

STRAUMAL BB, 1995, INTERFACE SCI, V3, P127, DOI 10.1007/BF00207014

[7] Bonding mechanism of Al/steel interface formed by laser-TIG welding assisted riveting technology [J].

Wang, Hongyang ;

Yang, Fan ;

Zhang, Zhaodong ;

Liu, Liming .

MATERIALS TODAY COMMUNICATIONS, 2020, 25

[8] Metallic bump assisted resistance spot welding (MBaRSW) of AA6061-T6 and bare DP590: Part I-printing of metallic bump [J].

Zhang, Guotao ;

Zhao, Hang ;

Xu, Xianghe ;

Qiu, Guohua ;

Li, Yongbing ;

Lin, Zhongqin .

JOURNAL OF MANUFACTURING PROCESSES, 2019, 44 :427-434

← 1 →