Effect of interfacial reaction layer continuity on the tensile strength of resistance spot welded joints between aluminum alloy and steels

Qiu, Ranfeng; Satonaka, Shinobu; Iwamoto, Chihiro

doi:10.1016/j.matdes.2009.02.012

Cited by 96 publications

(49 citation statements)

References 3 publications

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“…Therefore, the resistance spot welding of aluminum alloy has been widely investigated recently. However, the resistance spot welding between the two kinds of materials accompanies some difficulties, because of the large difference in physical and thermal properties between aluminum alloy and steel, and the formation of brittle reaction products at the welding interface [1][2][3] . Hence, solid state welding methods have been studied in the last few years to acquire a sound joint, such as explosion welding [4] , diffusion welding [5] , friction stir welding [6] .…”

Section: Introductionmentioning

confidence: 99%

Resistance Spot Welding between Steel and Aluminum Alloy

Li-hu¹,

Qiu²,

Hou³

et al. 2015

Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

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a hekeda131@126.com, b qiurf1221@163.com KEYWORD: Aluminum alloy; Mild steel; Resistance spot welding ABSTRACT: Aluminum alloy A6061 and mild steel Q235 sheets were welded by resistance spot welding. The interfacial microstructure was observed and the feature and distribution of the interfacial reactant were analyzed and the effects of welding current on the nugget size and tensile shear strength of the joint were investigated. The results indicate that both the tensile shear strength and nugget diameter of the joint increase with the increasing of welding current in some degree. When welding current exceeds a certain range, the nugget diameter of the joint tends towards stability and the tensile shear strength decreases. The joint with the maximum tensile shear load of 1.5 kN is obtained at the condition of 12 kA welding current. The interfacial reaction layer thickness decreased from central joints region to surrounding area.

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Section: Introductionmentioning

confidence: 99%

Resistance Spot Welding between Steel and Aluminum Alloy

Li-hu¹,

Qiu²,

Hou³

et al. 2015

Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

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“…EDS analysis of selected cross-section locations (see Fig. 13 The structure of the studied transition zone between aluminium and steel and its thickness corresponds to the data published in the papers [17,18].…”

Section: Obtained Resultsmentioning

confidence: 84%

“…the joints [7,8,17,18]. Of course, they are also affected by the occurrence of defects at the interface between sheets, such as pores and lack of fusion (Figs.…”

Section: Obtained Resultsmentioning

confidence: 99%

Optimization of RSW parameters by joining galvanized steel HZ 220 BD-Z100 MB with aluminium AV 1050A

Sejč¹,

Gábrišová²

2018

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The main trend in the automotive industry today is the reduction in vehicle weight. The problem is addressed first and foremost by the use of different types of light and high strength materials in the production of the car body. Although galvanized steel sheet is still the basic construction material, nowadays aluminium alloy sheets are increasingly used in the production of vehicles. This paper is focused on the optimization of process parameters by resistance spot welding dissimilar materials: galvanized steel sheet and sheet made of aluminium.K e y w o r d s : resistance spot welding, steel/aluminium joints, weld nugget, properties

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“…Qui et al applied Electron Microprobe Analysis (EMPA) imaging of A5052 Al-cold rolled steel fracture surfaces to show that fracture occurred in the base Al material when the IMC layer was thinner than 1.5 mm and having a discontinuous morphology, but fractured in the reaction layer for greater thicknesses which had a continuous morphology [188]. However, within the range of discontinuous IMC, the tensile strength increased with increased discontinuous reaction layer fraction [190]. Another challenge is to understand the relative impact of the IMC layer on different mechanical tests.…”

Section: Resistance Spot Weldingmentioning

confidence: 99%