Modeling and analysis of thin-walled Al/steel explosion welded transition joints for shipbuilding applications

Boroński, Dariusz; Skibicki, Andrzej; Maćkowiak, P.; Płaczek, Dominka

doi:10.1016/j.marstruc.2020.102843

Cited by 19 publications

(16 citation statements)

References 22 publications

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“…Experimental analyses of S355J2+N steel and AA5083 aluminum alloy welded structural joints employing explosion welded transition joints were performed in [138], showing that the strength of the welded joint resulted in being equal to 87-95% of the base material (AA5083) strength; furthermore, rupture never occurred in the explosion welded joint but only in correspondence of the Al/Al welded zone, confirming once again the reliability of the EXW transition joints. However, it should be highlighted that a higher thickness of the EXW transition joints was used for the experiments, according to the recommendations of the major classification societies and clad producers.…”

Section: Future Developments Of Welded Joints In Marine Structuresmentioning

confidence: 74%

“…The metals are bonded due to plastic deformations that take place at the collision front of the metals faces by means of a chemical explosive charge. Various experimental studies are described in the literature [130,[138][139][140]. The interface morphology and weld strength deeply depend on impact velocity and impact angle [130], and it is very common to use an intermediate plate due to the difficulty of directly welding aluminum alloy and steel.…”

Section: Future Developments Of Welded Joints In Marine Structuresmentioning

confidence: 99%

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Review of Fatigue Assessment Approaches for Welded Marine Joints and Structures

Corigliano

Crupi²

2022

Metals

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Welded joints are widely used in many sectors and represent the main joining technique also in the marine industry. The welded joints are sites of high stress concentrations and are subject to severe conditions for the marine environment. The design of marine welded joints has to consider the effects from wave loads, ship motions and loading/unloading operations and corrosion effects. The aim of this scientific work is to discuss about the state of the art of the standards and the approaches for predicting the fatigue life of welded joints used for the marine industry. Several approaches are examined in order to provide an overview and highlight the advantages and limitations of each method. Furthermore, recent advances in welding of dissimilar metals and autonomous welding are considered.

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Section: Future Developments Of Welded Joints In Marine Structuresmentioning

confidence: 74%

Section: Future Developments Of Welded Joints In Marine Structuresmentioning

confidence: 99%

Review of Fatigue Assessment Approaches for Welded Marine Joints and Structures

Corigliano

Crupi²

2022

Metals

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“…The chemical composition of the AlMg4.5Mn0.7 aluminum alloy used in this experiment is given in Table 1. Such types of alloys are usually used in the production of parts and elements for aircraft, ships and railway vehicles [25,26]. The mechanical and physical properties of the alloy used in this experiment are given in Tables 2 and 3.…”

Section: Methodsmentioning

confidence: 99%

Optimization of Synchropulsed MIG Welding Process Parameters for Welding of AW 5083 Sheets

et al. 2022

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Metal inert gas (MIG) welding is one of the processes most commonly used for joining metals, especially for joining aluminum and its alloys. The application of a pulsed current in an electric arc allows better controllability of the molten droplets and the arc transition, which subsequently leads to welds with characteristic flaky joints of better quality. In this paper, the optimization of parameters for welding aluminum alloys using the synchropulse welding process is investigated. By observing the input variables that have the greatest influence on the change in appearance of the welding current characteristics (delta wire feed from 0.1 to 6.0 m/min, frequency F from 0.5 to 3 Hz, duty cycle from 10% to 90%), it is possible to perform an optimization to achieve the desired output values. The output variables of the experiments are defined as insufficient/excessive throat thickness (mm), depth of penetration (mm), and weld width (mm); and for the desired quality of the welded joint the most acceptable range of its values is selected, the numerical optimization implementation. The experiment has shown that the delta wire feed has the greatest effect on the observed properties, while the influence of frequency F and duty cycle is somewhat smaller, but the factors responsible for the observed output properties are still significant. From all this, it is possible to select specific values of these input variables to define the best possible observed properties and to determine the characteristics of the defined mathematical models.

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“…Aluminium and steel, as the two most common metal materials, are extremely widely used in engineering [1][2][3][4]. Aluminium has excellent ductility, corrosion resistance and tolerance to copper and magnesium [5][6][7]. When single material cannot adopt the application requirements, aluminium/steel composite plate with low density, corrosion resistance and high strength is attracting more and more attention [8,9].…”

Section: Introductionmentioning

confidence: 99%

Copper plating on bonding properties of aluminium/steel explosive welded composite plate

Yang

et al. 2023

Materials Science and Technology

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In order to reduce critical impact velocity and enlarge weldability window of aluminium/steel explosive welding, a chemical copper plating layer as interlayer was proposed to carry out aluminium/steel explosive welding. The results showed that the interface of the 1060/Q235 composite plate had good bonding performance, and no obvious defects such as cracks and pores were found. Copper plating as intermediate layer could enlarge aluminium/steel weldability window. The thickness of solidified melt was much thicker than that of diffusion zone. The molten copper particles participated in the formation of re-entry jet, which rotated under the action of initial jet. The presence of the Cu layer reduces the occurrence of excessive melting during welding and improves the properties of the interface.

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Modeling and analysis of thin-walled Al/steel explosion welded transition joints for shipbuilding applications

Cited by 19 publications

References 22 publications

Review of Fatigue Assessment Approaches for Welded Marine Joints and Structures

Review of Fatigue Assessment Approaches for Welded Marine Joints and Structures

Optimization of Synchropulsed MIG Welding Process Parameters for Welding of AW 5083 Sheets

Copper plating on bonding properties of aluminium/steel explosive welded composite plate

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