Laser Welded Corrugated Steel Panels in Industrial Applications

Kananen, Markku; Mäntyjärvi, Kari; Keskitalo, Markku; Järvenpää, Antti; Holappa, Kalle; Saine, Kari; Teiskonen, J.

doi:10.1016/j.phpro.2015.11.044

Cited by 13 publications

(10 citation statements)

References 7 publications

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“…Laser welding can provide significant advantages over traditional welding methods. Especially in the welding of lap joints, laser welding is almost the only method that can be used to make joints costeffectively when a large number of welds are needed to weld the structure [6]. Laser welding has several significant advantages as small heat input, which leads to a very narrow heat-affected-zone (HAZ) compared to traditional welding methods [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Use of Adhesive Tape in Laser Welded Ultra-High-Strength Steel Lap Joints

Hietala,

Keskitalo,

Järvenpää

2024

KEM

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In this study, use of adhesive double-sided tape in laser welded ultra-high-strength steel lap joints was evaluated. The test material in the study was abrasion resistant steel (AR400). Optical microscopy was used to investigate macroscopic morphologies of the welds and hardness profiles were measured. Static properties of the joints were evaluated by performing tensile shear strength tests. Fatigue strength of the joints were evaluated by conducting axial fatigue tests. The use of tape resulted in a gap between the welded plates which has several advantages. The gap between the plates markedly increased the width of the weld at the interface of the plates. According to the hardness measurements the hardness of the weld metal was 12% higher compared to the hardness of the AR steel base material. The gap between the plates increased the strength of the joint by up to 20%. The adhesive tape itself did not have a significant effect on the shear strength of the joints. The main advantages of using the tape were a constant air gap and its function as a fastener in welding, so that separate fasteners are not needed.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Use of Adhesive Tape in Laser Welded Ultra-High-Strength Steel Lap Joints

Hietala,

Keskitalo,

Järvenpää

2024

KEM

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“…With the development of the manufacturing technique, laser welding gets more attention due to its advanced weld quality and less welding induced imperfections [19][20][21][22][23][24]. Recent research [25][26][27][28][29][30][31][32][33][34] shows that the sandwich panel can absorb large proportion of impact energy through plastic deformation when it is compressed, which provides more effective and lightweight solutions.…”

Section: Introductionmentioning

confidence: 99%

Structural response of the U-type corrugated core sandwich panel used in ship structures under the lateral quasi-static compression load

Liu

Zong

et al. 2022

Marine Structures

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“…In vehicles, weight reduction is directly utilized as a way to lower emissions due to lower fuel consumption. The mass reduction of structures is achieved by employing thin sheets of high-strength steel [ 1 , 2 ].…”

Section: Introductionmentioning

confidence: 99%

Dissimilar Laser Welding of Austenitic Stainless Steel and Abrasion-Resistant Steel: Microstructural Evolution and Mechanical Properties Enhanced by Post-Weld Heat Treatment

et al. 2021

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In this study, ultra-high-strength steels, namely, cold-hardened austenitic stainless steel AISI 301 and martensitic abrasion-resistant steel AR600, as base metals (BMs) were butt-welded using a disk laser to evaluate the microstructure, mechanical properties, and effect of post-weld heat treatment (PWHT) at 250 °C of the dissimilar joints. The welding processes were conducted at different energy inputs (EIs; 50–320 J/mm). The microstructural evolution of the fusion zones (FZ) in the welded joints was examined using electron backscattering diffraction (EBSD) and laser scanning confocal microscopy. The hardness profiles across the weldments and tensile properties of the as-welded joints and the corresponding PWHT joints were measured using a microhardness tester and universal material testing equipment. The EBSD results showed that the microstructures of the welded joints were relatively similar since the microstructure of the FZ was composed of a lath martensite matrix with a small fraction of austenite. The welded structure exhibited significantly higher microhardness at the lower EIs of 50 and 100 J/mm (640 HV). However, tempered martensite was promoted at the high EI of 320 J/mm, significantly reducing the hardness of the FZ to 520 HV. The mechanical tensile properties were considerably affected by the EI of the as-welded joints. Moreover, the PWHT enhanced the tensile properties by increasing the deformation capacity due to promoting the tempered martensite in the FZ.

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Laser Welded Corrugated Steel Panels in Industrial Applications

Cited by 13 publications

References 7 publications

Evaluation of the Use of Adhesive Tape in Laser Welded Ultra-High-Strength Steel Lap Joints

Evaluation of the Use of Adhesive Tape in Laser Welded Ultra-High-Strength Steel Lap Joints

Structural response of the U-type corrugated core sandwich panel used in ship structures under the lateral quasi-static compression load

Dissimilar Laser Welding of Austenitic Stainless Steel and Abrasion-Resistant Steel: Microstructural Evolution and Mechanical Properties Enhanced by Post-Weld Heat Treatment

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