Lap weld joint modelling and simulation of welding in programme SYSWELD

Konar, Radoslav; Mičian, Miloš; Zrak, Andrej

doi:10.1051/matecconf/201815702018

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…3. Weld macrostructure and its geometry [22] The shape of the molten area in the welding simulation can be achieved by correctly setting the Goldak model parameters. It is also possible to use several Goldak sources, mainly to define the irregular shape of the molten area.…”

Section: Numerical Simulation Of Welding Process In Sysweld ® Programmentioning

confidence: 99%

Numerical simulation of a temperature field during multi-beads surface welding

Konar¹,

Mičian²,

Málek³

et al. 2021

J. Appl. Math. Comput. Mech.

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The calculation results of the temperature field during multi-beads GMAW (Gas Metal Arc Welding) cladding of the S355 steel plate are presented in the paper. Numerical simulations were performed using the Sysweld ® program. Two of Goldak's heat source models were chosen for calculating the temperature field for each weld bead. The original article achievement is, by selecting the right heat source model and heat loading of the finite elements, obtaining an irregular shape of the fusion zone. This irregular shape of the fusion zone is very complicated to obtain using other commercial programs for numerical welding simulation. The calculation results were verified by the dimensions (critical temperatures) of the heat affected zones (HAZ) determined in the experiment, obtaining a satisfactory agreement.

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Section: Numerical Simulation Of Welding Process In Sysweld ® Programmentioning

confidence: 99%

Numerical simulation of a temperature field during multi-beads surface welding

Konar¹,

Mičian²,

Málek³

et al. 2021

J. Appl. Math. Comput. Mech.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The digital simulation can quickly design and optimize welding processes and structures, evaluate post-welding quality, and reduce trial/error costs. At present, the finite element method based on the thermo-elastic-plastic theory is mainly adopted to predict welding deformation, optimize welding process parameters, sequences, and fixtures [6][7][8]. This method has advantages on high calculation accuracy, and its calculation time is also acceptable with the improvement of computer abilities.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Electron Beam Welding Deformation for the Vacuum Vessel Lower Port Stub of 316L Stainless Steel

Tao

et al. 2022

Metals

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The China Fusion Engineering Test Reactor vacuum vessel has strict tolerances requirements and a large number of fully penetrated joints in the manufacturing and assembly processes. As the most complicated component of vacuum vessel, port stubs have stricter tolerance requirements, to guarantee the high assembly accuracy with the vacuum vessel. Due to the small deformation of electron beam welding, this method is adopted for the welding of port stub. However, welding deformation cannot be avoided, thus it is necessary to carry out finite element analysis to analyze and control the welding deformation of the port stub. In this paper, based on thermo-elastic–plastic theory, the double ellipsoid and cone-shaped hybrid heat source can accurately outline the electron beam weld pool contour of the 316L stainless steel with 50 mm thickness, which is further verified by the welding process experiment. The above hybrid heat source is applied to analyze the welding deformation of the lower port stub, and according to the deformation simulation results, the welding fixture is designed to reduce the welding deformation. The welding deformation analysis can effectively provide theoretical data support and practical guidance for the actual electron beam welding process of port stub.

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Numerical modelling on the influence of repair welding during manufacturing on residual stresses and distortions of T-joints

Kollár

2023

Results in Engineering

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Lap weld joint modelling and simulation of welding in programme SYSWELD

Cited by 4 publications

References 9 publications

Numerical simulation of a temperature field during multi-beads surface welding

Numerical simulation of a temperature field during multi-beads surface welding

Numerical Analysis of Electron Beam Welding Deformation for the Vacuum Vessel Lower Port Stub of 316L Stainless Steel

Numerical modelling on the influence of repair welding during manufacturing on residual stresses and distortions of T-joints

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