Cold metal transfer joining aluminum alloys-to-galvanized mild steel

Cao, Rui; Yu, Gang; Chen, J.H.; Wang, Pei-Chung

doi:10.1016/j.jmatprotec.2013.04.004

Cited by 187 publications

(79 citation statements)

References 14 publications

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“…Zhang et al joined aluminum alloy 2B50 and stainless steel 1Cr18Ni9Ti with Al-Si filler metal by MIG welding-brazing method, and showed that the thickness of the IMCs layer was varied from 5 lm to 15 lm relying on different heat input [8]. Cao et al studied the cold metal transfer joining of aluminum alloys to galvanized mild steel, and the results showed the joint strength depended much on the thickness of the IMCs layer, and sound joints with good performance could be obtained by properly controlling the heat input (i.e., 100-200 J/mm) [9].…”

Section: Introductionmentioning

confidence: 99%

Investigation of laser welding on butt joints of Al/steel dissimilar materials

Qi²,

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Investigation of laser welding on butt joints of Al/steel dissimilar materials

Qi²,

et al. 2015

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“…Aprovechando las condiciones ofrecidas por esta técnica fueron realizadas uniones disímiles aluminio-acero con resultados sobresalientes en cuanto a apariencia, ausencia de defectos y resistencia mecánica, atribuidos al excelente control de los parámetros de soldadura (Furukawa, 2006;Zhang et al, 2008). Esta técnica permitió la obtención de juntas soldadas con unión metalúrgica y ductilidad adecuada, gracias a la formación de una capa fina y homogénea de CIM, con espesor entre 5 y 10 μm (Zhang et al, 2009;Cao et al, 2013;Lin et al, 2013). Este resultado coincide con la afirmación de algunos autores que sostienen que es necesaria la formación de una capa fina de CIM que garantice la unión metalúrgica de ambos materiales, con un espesor tal que no comprometa substancialmente la ductilidad (Xue, et al, 2010;Zhang et al, 2011).…”

Section: Introductionunclassified

Inhibition of the formation of intermetallic compounds in aluminum-steel welded joints by friction stir welding

López¹,

Ramírez²

2015

REVMETAL

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RESUMEN:La unión de juntas aluminio-acero, sin la formación de fases deletéreas del tipo Fe x Al y , ha sido, por décadas, un desafío para los procesos de soldadura. La soldadura por fricción-agitación ha sido empleada para intentar reducir el aporte térmico y evitar la formación de compuestos intermetálicos. Usando esta técnica fueron soldadas juntas disimilares de aluminio 6063-T5 y acero AISI-SAE 1020. La soldadura fue acompañada de medidas de temperatura durante su ejecución. La interfase de las juntas soldadas fue caracterizada utilizando microscopía óptica, electrónica de barrido y electrónica de transmisión. Adicionalmente fueron realizadas medidas puntuales X-EDS y DRX. Los resultados experimentales revelan que la temperatura máxima en la junta es inferior a 360 °C. La caracterización microestructural en la interfase aluminio-acero demostró la ausencia de compuestos intermetálicos, condición atribuida al uso de parámetros de soldadura con bajo aporte térmico. ABSTRACT: Inhibition of the formation of intermetallic compounds in aluminum-steel welded joints by friction stir welding.Formation of deleterious phases during welding of aluminum and steel is a challenge of the welding processes, for decades. Friction Stir Welding (FSW) has been used in an attempt to reduce formation of intermetallic compounds trough reducing the heat input. In this research, dissimilar joint of 6063-T5 aluminum alloy and AISI-SAE 1020 steel were welded using this technique. The temperature of welded joints was measured during the process. The interface of the welded joints was characterized using optical microscopy, scanning and transmission electron microscopy. Additionally, composition measurements were carried out by X-EDS and DRX. The experimental results revealed that the maximum temperature on the joint studied is less than 360 °C. The microstructural characterization in the aluminum-steel interface showed the absence of intermetallic compounds, which is a condition attributed to the use of welding with low thermal input parameters.

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“…However, due to using fusion welding, the welding quality was poor compared with self-brazing welding. Also, the cold metal transfer welding was applied to weld galvanized steel and aluminum alloys [18]. This work applied edge lap joint with aluminum alloy lying on top and filled the consumable electrode to its edge.…”

Section: Introductionmentioning

confidence: 99%

GTAW of Zinc-Coated Steel and Aluminum Alloy

Borrisutthekul¹,

Seangsai²,

Paonil³

2018

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Abstract. In this study, effect of zinc-coated layer on steel sheet of dissimilar metals welding between SCGA270C steel and A5052 aluminum alloy by GTAW was investigated. In the experiments, two types of self-brazing welding; 1) welding between non-zinc-coated steel/aluminum alloy, and 2) welding between zinc-coated steel/aluminum alloy, were carried out. The lap joint configuration in which steel was lying on top of aluminum alloy was applied. From the results of zinc-coated steel case, the reaction between the lowmelting-point zinc with both molten and solid aluminum alloy provided larger welding width between two metal sheets. Moreover, zinc, which is heavier than aluminum alloy, was fallen down but not well mixed into molten aluminum alloy. Consequently, thick intermetallic compound layer near welding interface between steel/aluminum alloy was formed. Comparison of load resistance between non zinc-coated case and zinc-coated steel case, the wider welding width which consequently improvement the load resistance of the welds was obtained, when using low heat input. However, when applying higher, significant contraction of aluminum welding pool promoted crack along the non-uniform chemical composition zone in case of zinc-coated steel. These cracks were the cause of reduction of load resistance of the welds between zinc-coated steel/aluminum alloy.

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Cold metal transfer joining aluminum alloys-to-galvanized mild steel

Cited by 187 publications

References 14 publications

Investigation of laser welding on butt joints of Al/steel dissimilar materials

Investigation of laser welding on butt joints of Al/steel dissimilar materials

Inhibition of the formation of intermetallic compounds in aluminum-steel welded joints by friction stir welding

GTAW of Zinc-Coated Steel and Aluminum Alloy

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