Torch brazing 3003 aluminum alloy with Zn—Al filler metal

Dai, Wei; Xue, Songbai; Lou, Ji-yuan; Lou, Yin-bin; Shuiqing, Wang

doi:10.1016/s1003-6326(11)61135-7

Cited by 31 publications

(22 citation statements)

References 14 publications

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“…As for the brazing seam, the results in Figure 14 showed that its hardness had increased when the flame time and temperature were increased. This happened because of the solid solution strengthening effect in the filler metal during the flaming process, as mentioned by Dai et al [40]. In this study, the low brazing seam hardness was related to the better joint strength, which was in agreement with the study by Suenger et al They reported that the joint with a low-hardness or high-ductility brazing seam would improve the joining ability of the filler to the base metals [41].…”

Section: Mechanical Propertiessupporting

confidence: 89%

Brazed Joint Interface Bonding Strength of AR500 Steel and AA7075 Aluminium Alloy

Muhamed

Omar

Abdullah

et al. 2018

Metals

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The joining of aluminium alloys to steels has been extensively studied, especially in the automotive sector. However, aluminium alloys are known to be difficult to join with steels when methods involving fusion welding are used because of the hot cracking problem. Hence, a high-strength joint between these dissimilar metals would be of benefit especially in reducing the weight of products. In this work, the torch-brazing method was applied to join AR500 steel with AA7075 aluminium alloy using Al–Si–Zn base filler metal at various flame times. The effects of the brazing work on the intermetallic phase formation and the mechanical strength of the joints were investigated. In this work, the maximum shear load obtained was 6460 N and the presence of the intermetallic phases had reduced the shear strength of the brazed joints. However, the torch-brazing process using Al–Si–Zn filler metal had successfully facilitated the joining of these dissimilar metals.

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Section: Mechanical Propertiessupporting

confidence: 89%

Brazed Joint Interface Bonding Strength of AR500 Steel and AA7075 Aluminium Alloy

Muhamed

Omar

Abdullah

et al. 2018

Metals

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“…The results in Figure 15 showed that the hardness of brazing seam had increased when the flame time and temperature were increased. This happened because of the solid solution strengthening effect in filler metal during flaming process [31]. The EDX analysis in Fig.…”

Section: Intermetallic Compound Layer Formationmentioning

confidence: 98%

Brazed Joint Interface Bonding Strength of AR500 Steel and AA7075 Aluminium Alloy

Muhamed

Omar²,

Abdullah³

et al. 2018

Preprint

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Joining of aluminium alloys to steels has been extensively studied, especially in the automotive sector. However, aluminium alloys are known to be difficult to join with steels when methods involving fusion welding are used because of hot cracking problem. Hence, a high strength joint between these dissimilar metals would be of benefit especially in reducing the weight of products. In this work the torch brazing method was applied to join AR500 steel with AA7075 aluminium alloy using Al-Si-Zn base filler metal at various flame times. The effect of the brazing work on the intermetallic phase formation and the mechanical strength of the joints were investigated. In this work, the maximum shear load obtained was 6460 N and the presence of the intermetallic phases had reduced the shear strength of the brazed joints. However, the torch brazing process using Al-Si-Zn filler metal had successfully facilitated the joining of these dissimilar metals.

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“…Many parameters such as selection of brazing filler metal, oxide and pre-joining cleaning process, composition of protective gas, flux and lubrication can influence the quality and reliability in vacuum brazing of metallic alloys [9,10] and ceramic joining [11][12][13]. In addition to the mentioned technological aspects of process, fluid mechanics-related factors like base metal/filler metal wettability, filler metal density, viscosity and temperature dependency of capillary motion of filler metal can significantly influence the approval of the final joint [9,14,15]. As the most important factors among all abovementioned items, the composition and related physical properties of Al-based filler metals plays a key role in the joining process.…”

Section: Introductionmentioning

confidence: 99%

Effect of process conditions on the evolution of microstructure and mechanical properties of AA3003 vacuum furnace brazing joints

Eivani

Ahmadian²,

Vafaeenezhad

2020

Mater. Res. Express

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In this study, vacuum furnace brazing was used for joining AA3003 alloy with different thicknesses of 0.6 and 3 mm using BALSI-4 filler metal. Firstly, the samples were degreased using water and soap and then cleaned with acetone. The set-up was assembled and pre-heated for two-steps at 235 and 339°C and subsequently, moved to furnace. Vacuum brazing was conducted at temperature range of 590 to 630°C for different holding times of 5 and 10 min followed by furnace cooling. After primary visual checking, three samples for each thickness were selected for evaluation of microstructure and mechanical properties. Results indicated that furnace temperature and holding time significantly influenced microstructural evolution and mechanical properties. This effect was attributed to the distribution of Si and its relevant eutectic and pro-eutectic phases. It was deduced that the amount and distribution of such phases together with joint assembling design controlled the mechanical and fracture behavior. Furthermore, it was found that the quantitative amounts of pro-eutectic Si and Al-Si eutectic phases significantly increased the hardness of the joint. Therefore, the joint brazed at 610°C and dwelling time of 10 min was identified to offer the optimal mechanical properties.

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Torch brazing 3003 aluminum alloy with Zn—Al filler metal

Cited by 31 publications

References 14 publications

Brazed Joint Interface Bonding Strength of AR500 Steel and AA7075 Aluminium Alloy

Brazed Joint Interface Bonding Strength of AR500 Steel and AA7075 Aluminium Alloy

Brazed Joint Interface Bonding Strength of AR500 Steel and AA7075 Aluminium Alloy

Effect of process conditions on the evolution of microstructure and mechanical properties of AA3003 vacuum furnace brazing joints

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