Study on welding process and mechanical properties of resistance spot brazed pure aluminum 1060 to galvanized steel

被引：0

作者：

Zhang C. ^{[1
]}

Jin X. ^{[2
]}

Wang W. ^{[2
]}

Qin Z. ^{[2
]}

Rong C. ^{[2
]}

机构：

[1] State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou

[2] College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou

来源：

Hanjie Xuebao/Transactions of the China Welding Institution | 2019年 / 40卷 / 09期

关键词：

Galvanized steel; Mechanical properties; Microstructure; Pure aluminum; Resistance spot brazing;

D O I：

10.12073/j.hjxb.2019400252

中图分类号：

学科分类号：

摘要：

Resistance spot brazing of pure aluminum 1060 to SGCC hot-dip galvanized steel was investigated. The microstructure of the intermetallic compound (IMC) in the interfacial layer was analyzed, and the mechanical properties of the joint was tested. The results showed that the aluminum-silicon brazing filler metal had a well wettability, and the intermetallic compound with double-layer structure and uneven thickness less than 10 μm generated at the interface of the welded joint. When the welding current was 7.8 kA, the maximum tensile shear load of the joint was 4.72 kN, which was significantly higher than that of the resistance spot welding joint under the same process parameters. The fracture of the joint mostly occured on the side of aluminum plate, and it was mainly in the heat affected zone (HAZ) rather than the welding spot, indicating that the resistance point brazing joint was of good quality. However, the local incomplete brazing was found in the weld interface at the aluminum side, where the tensile stress was generated, and the weld interface tended to crack under the stress of the intermetallic compound. © 2019, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.

引用

页码：151 / 155

页数：4

共 12 条

[1]

Xie Q., Song Y., Lightening is the guarantee for the sustainable development of automobile industry, Light Alloy Fabrication Technology, 41, 12, pp. 14-16, (2013)

[2]

Santos J., Gouveia R.M., Silva F.J.G., Designing a new sustainable approach to the change for lightweight materials in structural components used in truck industry, Journal of Cleaner Production, 164, pp. 115-123, (2017)

[3]

Li Y., Wu N., Current Research Status of Steel/Aluminum Dissimilar Metal Welding, Welding & Joining, 3, pp. 5-12, (2010)

[4]

Li Y., Li Y., Lou M., Et al., Lightweighting of car body and its challenges to joining technologies, Journal of Mechanical Engineering, 48, 18, pp. 44-54, (2012)

[5]

Yang J., Li Y.L., Zhang H., Microstructure and mechanical properties of pulsed laser welded Al/steel dissimilar joint, Transactions of Nonferrous Metals Society of China, 26, 4, pp. 994-1002, (2016)

[6]

Winnicki M., Malachowska A., Korzeniowski M., Et al., Aluminium to steel resistance spot welding with cold sprayed interlayer, Surface Engineering, 34, 3, pp. 235-242, (2018)

[7]

Kimura M., Suzuki K., Kusaka M., Et al., Effect of friction welding condition on joining phenomena, tensile strength, and bend ductility of friction welded joint between pure aluminium and AISI 304 stainless steel, Journal of Manufacturing Processes, 25, pp. 116-125, (2017)

[8]

Ling Z., Luo Z., Feng Y., Et al., A combination joining technology of spot welding and riveting for aluminum and steel, Transactions of the China Welding Institution, 38, 2, pp. 101-104, (2017)

[9]

Qiu R., Satonaka S., Iwamoto C., Effect of interfacial reaction layer continuity on the tensile strength of resistance spot welded joints between aluminum alloy and steels, Materials and Design, 30, 9, pp. 3686-3689, (2009)

[10]

Qiu R., Satonaka S., Iwamoto C., The influence of reaction layer on the strength of aluminum/steel joint welded by resistance spot welding, Materials Characterization, 60, 2, pp. 156-159, (2009)

← 1 2 →