PA position full penetration high power laser beam welding of up to 30 mm thick AlMg3 plates using electromagnetic weld pool support

Avilov, Vjaceslav; Gumenyuk, Andrey; Lammers, Marco; Rethmeier, Michael

doi:10.1179/1362171811y.0000000085

Cited by 89 publications

(27 citation statements)

References 12 publications

(24 reference statements)

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“…The electromagnetic weld pool support was demonstrated successfully for single-pass LBW [12] and for HLAW [24]. Figure 3 shows the AC electromagnetic weld pool support system used for the LBW or HLAW of thick metal parts.…”

Section: Electromagnetic Weld Pool Influencementioning

confidence: 99%

See 1 more Smart Citation

Improvement of Filler Wire Dilution Using External Oscillating Magnetic Field at Full Penetration Hybrid Laser-Arc Welding of Thick Materials

Üstündağ

Avilov

Gumenyuk

et al. 2019

Metals

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Hybrid laser-arc welding offers many advantages, such as deep penetration, good gap bridge-ability, and low distortion due to reduced heat input. The filler wire which is supplied to the process is used to influence the microstructure and mechanical properties of the weld seam. A typical problem in deep penetration high-power laser beam welding with filler wire and hybrid laser-arc welding is an insufficient mixing of filler material in the weld pool, leading to a non-uniform element distribution in the seam. In this study, oscillating magnetic fields were used to form a non-conservative component of the Lorentz force in the weld pool to improve the element distribution over the entire thickness of the material. Full penetration hybrid laser-arc welds were performed on 20-mm-thick S355J2 steel plates with a nickel-based wire for different arrangements of the oscillating magnetic field. The Energy-dispersive X-ray spectroscopy (EDS) data for the distribution of two tracing elements (Ni and Cr) were used to analyze the homogeneity of dilution of the filler wire. With a 30 • turn of the magnetic field to the welding direction, a radical improvement in the filler material distribution was demonstrated. This would lead to an improvement of the mechanical properties with the use of a suitable filler wire.

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Section: Electromagnetic Weld Pool Influencementioning

confidence: 99%

“…In such a case, the surface tension cannot compensate for the hydrostatic pressure, which leads to the formation of inadmissible root defects such as drop-outs. The stability criterion is therefore dependent on the geometrical sizes of the weld seam, and is defined in accordance with [12] as follows:…”

Section: Introductionmentioning

confidence: 99%

Improvement of Filler Wire Dilution Using External Oscillating Magnetic Field at Full Penetration Hybrid Laser-Arc Welding of Thick Materials

Üstündağ

Avilov

Gumenyuk

et al. 2019

Metals

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“…Due to the availability of a new generation of high brightness multi-kilowatt solid state lasers, high-power laser beam welding became a new stimulus. However, some new problems, for example, the weld defects of sagging and spatter, the intense plasma plume and turbulent molten pool flow, are accompanied during high-power laser beam welding [26][27][28]. That means that the application of high power single pass laser welding encounters a bottleneck.…”

Section: The Research Status Of Laser Welding Under Vacuummentioning

confidence: 99%

Laser Welding under Vacuum: A Review

2017

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Laser welding has been widely used in various industry fields. In order to further alter and broaden its applicability, a novel technology of laser welding under vacuum is introduced. The combination of high power laser and low ambient pressure provides an excellent welding performance and quality. In this paper, an overview on laser welding under vacuum is presented. It begins with a short introduction about the research status of laser welding under vacuum. Next, the equipment of laser welding under vacuum is introduced. Then, the fundamental phenomena of laser welding under vacuum, including penetration depth, weld geometry, plasma plume, molten pool and keyhole behaviors, are summarized in detail. Finally, the applications and prospects of laser welding under vacuum are proposed.

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“…A contactless inductive electromagnetic weld pool support system is used to prevent gravity dropout of the melt [14]. An AC power supply of 244 W at 460 Hz is necessary to completely suppress gravity dropout of the melt and eliminate sagging of the weld pool root side surface [15]. The outgassing effect in terms of a reduction of pores with electromagnetic field was investigated during laser welding.…”

Section: Introductionmentioning

confidence: 99%

Suppression effect of a steady magnetic field on molten pool during laser remelting

Wang

Yao

et al. 2015

Applied Surface Science

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PA position full penetration high power laser beam welding of up to 30 mm thick AlMg3 plates using electromagnetic weld pool support

Cited by 89 publications

References 12 publications

Improvement of Filler Wire Dilution Using External Oscillating Magnetic Field at Full Penetration Hybrid Laser-Arc Welding of Thick Materials

Improvement of Filler Wire Dilution Using External Oscillating Magnetic Field at Full Penetration Hybrid Laser-Arc Welding of Thick Materials

Laser Welding under Vacuum: A Review

Suppression effect of a steady magnetic field on molten pool during laser remelting

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