Joining of Aluminium Alloy and Steel by Laser Assisted Reactive Wetting

Liedl, Gerhard; Vázquez, Rodrigo Gómez; Murzin, Serguei P.

doi:10.1007/s40516-017-0049-8

Cited by 20 publications

(6 citation statements)

References 28 publications

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“…In order to improve the thermal contact between the pieces to be joined, a special clamping device was also developed by Liedl et al [19] to lap-join 6016 aluminum alloy to DC01 low-carbon steel. Additionally, the authors used different backing block materials (aluminum, steel and copper) to control the heat extraction from the joining zone, besides a water-cooled backing block to further improve heat extraction.…”

Section: Lap Jointsmentioning

confidence: 99%

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Recent Developments in Laser Welding of Aluminum Alloys to Steel

Wallerstein

Salminen

Lusquiños

et al. 2021

Metals

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The development of high-performance dissimilar aluminum–steel joints is necessary to promote the feasibility of multi-material design and lightweight manufacturing. However, joining aluminum to steel is a challenging task mainly due to the formation of brittle intermetallic compounds (IMC) at the joint interface. Laser welding is considered a very promising joining process for dissimilar materials, although its application in industry is still limited by the insufficient mechanical performance of the joints. The present paper aims to give a comprehensive review of relevant recent research work on laser joining of aluminum to steel, contributing to highlighting the latest achievements that could boost acceptance of laser joining of dissimilar materials by the modern industries. To this end, the most important challenges in laser joining of aluminum to steel are presented, followed by recent approaches to overcome these challenges, the state-of-art of comprehension of IMC formation and growth, and the different strategies to minimize them.

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Section: Lap Jointsmentioning

confidence: 99%

“…Thus, low-heat input welding processes facilitate controlling the formation and growth of the IMC layer, leading to better mechanical performance. In this context, laser welding stands out as a very precise technique [17,18], which enables accurate control of heat input [19] and high cooling rates due to its very high energy density [20].…”

Section: Introductionmentioning

confidence: 99%

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Wallerstein

Salminen

Lusquiños

et al. 2021

Metals

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“…This could result in different wetting dynamics as compared to those observed during slow heating. 10,12,14 These nonequilibrium effects, resulting in accelerated interfacial interactions at the solid− liquid (S/L) interface and triple line, determine the laser-induced wetting behavior in reactive systems. Moreover, it has been observed previously that the wetting time scales differ significantly between conventional heating (>100 s) and laser heating (a few seconds).…”

Section: ■ Introductionmentioning

confidence: 99%

“…However, dynamic information is essential as it provides insights into the structural and morphological changes occurring during the wetting that can enhance our understanding of the process. In addition, with the advancement in technology, laser processing of materials is being highly utilized in the manufacturing industries. − The dynamics involved in laser heating can significantly differ from those involved in conventional heating. ,, Therefore, it is crucial to understand the laser-induced dynamics of materials and the associated challenges for the fabrication of advanced composites.…”

Section: Introductionmentioning

confidence: 99%

Direct Visualization of Aluminum Particle Wetting on Carbon Using In Situ Laser Heating TEM

Kumari,

Ortalan

2023

J. Phys. Chem. C

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The fundamental understanding of aluminum particle wetting is critical for many industrial and military applications, such as nanocomposites, surface coatings, and explosives. In this study, the wetting behavior of aluminum particles on carbon is directly visualized using an in situ laser heating transmission electron microscope (ILH-TEM). Morphological, structural, and chemical analyses of the reaction products formed after laser irradiation of the aluminum−carbon system are characterized ex situ by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) using imaging, diffraction, and electron energy loss spectroscopy (EELS). Different stages of the wetting were captured for ex situ analysis by exposing the samples to a varying number of laser pulses. Additionally, molecular dynamics (MD) simulations were carried out using a reactive force field (ReaxFF) to obtain an atomistic perspective of the aluminum−carbon interactions. The results show that dissolution and reaction occur during the wetting process and the spreading front advancement results from the reaction between aluminum and carbon at the triple line. The complete mechanism of aluminum wetting is discussed in detail, i.e., the impact of laser heating, breakdown of the passivation layer, and interaction of aluminum and carbon, resulting in wetting enhancement.

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“…Wallerstein et al [30] reviewed the latest progress of laser welding between aluminum alloy and steel, and pointed out that connecting aluminum and steel is a challenging task, mainly because of the formation of brittle intermetallic compounds at the joint interface. Liedl et al [31] studied the laser welding of 1mm aluminum alloy and steel dissimilar metals. The experimental research shows that by adjusting the laser power and welding speed, the ultra-thin diffusion zone with the minimum intermetallic layer thickness can be obtained, and then the weld without defects such as cracks and pores can be obtained.…”

Section: Introductionmentioning

confidence: 99%

Innovations in Monitoring, Control and Design of Laser and Laser-Arc Hybrid Welding Processes

Cheng

Ning

et al. 2021

Metals

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With the rapid development of high power laser, laser welding has been widely used in many fields including manufacturing, metallurgy, automobile, biomedicine, electronics, aerospace etc. Because of its outstanding advantages, such as high energy density, small weld size, easy automation. Combining the two heat sources of laser and arc for welding can achieve excellent results due to the synergistic effect. Laser welding is a complicated physical and chemical metallurgical process, involving the laser beam and molten pool, keyholes and materials melting, evaporation and multiple physical process. Process monitoring and quality control are important content of research and development in the field of laser welding, which is the premise to obtain fine weld with high quality. Numerical simulation technology can describe many complex physical phenomena in welding process, which is very important to predict weld forming and quality and clarify the underline mechanism. In this paper, the research progress of process monitoring, quality control and autonomous intelligent design of laser and laser-arc hybrid welding based on numerical simulation were reviewed, and the research hotspots and development trends of laser welding in the future are predicted.

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Joining of Aluminium Alloy and Steel by Laser Assisted Reactive Wetting

Cited by 20 publications

References 28 publications

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Recent Developments in Laser Welding of Aluminum Alloys to Steel

Direct Visualization of Aluminum Particle Wetting on Carbon Using In Situ Laser Heating TEM

Innovations in Monitoring, Control and Design of Laser and Laser-Arc Hybrid Welding Processes

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