The influence of the gap size on the formation of a welded joint in hybrid laser-arc welding of angular joints and T-joints

Tsibulskiy, I.A.; Akhmetov, A.A.; Korsmik, Rudolf; Voropae, A A; Mendagaliye, R V; Eremeev, A D

doi:10.1088/1742-6596/1109/1/012033

Cited by 2 publications

(4 citation statements)

References 2 publications

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“…To verify the application a series of specimen with fillet and T-shaped welds were produced. The results of the experiment are given in [13]. To determine the geometry of the welded joints, macrosections of the samples were prepared for various welding parameters.…”

Section: Experiments Resultsmentioning

confidence: 99%

Аpplication Development for the Evaluation of Penetration in Laser and Laser-Arc Hybrid Welding of Tee and Corner Joints

Udin

Voropaev

Unt

2019

KEM

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Laser technologies deservedly take their place in modern mechanical engineering production. Using laser source for welding has already become common. However, the creation of critical welded constructions is impossible without extensive technological surveys, which can be greatly simplified by using a computational experiment. To achieve this goal, special programs are usually used. That can be unjustified difficult and thereby awkward for technological practice. The article describes an application built on the basis of a simplified model for calculating the temperature field for the cases of laser and laser-arc welding of internal fillet welds as well as single-sided T-joints and simultaneous double-sided welds. The results of calculations by the model and comparing them with experimental data have shown that it is sufficiently adequate for use in technological purposes. The developed application contemporaneously has a simple and intuitive interface, does not require significant computational resources and can be used for quick preliminary estimation of the result of welding for the selected type of weld.

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Section: Experiments Resultsmentioning

confidence: 99%

Аpplication Development for the Evaluation of Penetration in Laser and Laser-Arc Hybrid Welding of Tee and Corner Joints

Udin

Voropaev

Unt

2019

KEM

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“…Therefore, conformity in the imperfection assessment seems to predict a good weld quality. Similarly, a quality level B according to ISO 12932 [33] in the evaluation of internal and external defects was obtained by Tsibulskiy [25] on one side HLAW T-joints with 12.5 mm thickness welded on the flat position 1F. The experimental tests reported in [4] allowed authors to obtain weld seams on 14 mm T-joints from steel E36 using 14.5 kW laser power.…”

Section: Evaluation Of Imperfectionsmentioning

confidence: 99%

“…However, full penetration was not obtained in 10 mm thickness. Tsibulskiy et al [25] followed a similar approach to weld T-joints by HLAW with 1F position but on thicker plates of 12.5 mm using a welding speed of 1.2 m/min. Angular welds and T-joints in one pass and in two passes, respectively, were carried out immediately after laser cutting without further edge preparation.…”

Section: Introductionmentioning

confidence: 99%

“…Angular welds and T-joints in one pass and in two passes, respectively, were carried out immediately after laser cutting without further edge preparation. Gaps between flange and web were fixed from 0.1 to 1 mm, working with an angle of incidence of the laser with respect to the flange of 5 • [25]. This study revealed that a gap of 0.1 mm is optimal for welding T-joints.…”

Section: Introductionmentioning

confidence: 99%

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The Effects of HLAW Parameters for One Side T-Joints in 15 mm Thickness Naval Steel

Churiaque

Sánchez-Amaya

Porrúa-Lara³

et al. 2021

Metals

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The present contribution is the first research reporting full penetration HLAW joints in 15 mm thick EH36 steel butt T-welds with square grooves on 2F welding position by single-sided welding. The effects of welding parameters were investigated to increase the quality of the joints. Conditions leading to defect-free full penetration welds fulfilling naval regulations includes a laser power of 12.5 kW, a welding speed of 1.6 m/min and the vertical laser offset distance from the flange of 1 mm. Advanced characterization of selected welds included a microstructural identification by optical microscopy, SEM, and XRD, revealing the presence of acicular, polygonal and Widmanstätten ferrite, lath martensite, and some retained austenite at FZ. Hardness and microhardness mapping tests showed values of 155 HV at base metal and 200 to 380 HV at the fusion zone connecting the web to the flange.

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The influence of the gap size on the formation of a welded joint in hybrid laser-arc welding of angular joints and T-joints

Cited by 2 publications

References 2 publications

Аpplication Development for the Evaluation of Penetration in Laser and Laser-Arc Hybrid Welding of Tee and Corner Joints

Аpplication Development for the Evaluation of Penetration in Laser and Laser-Arc Hybrid Welding of Tee and Corner Joints

The Effects of HLAW Parameters for One Side T-Joints in 15 mm Thickness Naval Steel

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