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Effect of welding sequence on residual stress distributions in GTA welding of AA5251 plate
International Journal of Materials Research, 2012 Abstract In this paper, a thermo-mechanical model has been used to predict the temperature history and residual stress distribution in gas tungsten arc welding of AA5251 plates. This model has also been utilized to estimate the residual stresses under different welding sequences, while in the model the effect of temperature on material ...
A. R. Kohandehghan, S. Serajzadeh
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Correlation between laser welding sequence and distortions for thin sheet structures
Science and Technology of Welding and Joining, 2017 Thin ultra-high strength steel shaped as 700â mm long U-beams have been laser welded in overlap configuration to study the influence of welding sequence on distortions.
Karl Fahlström +2 more
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Weld-Overlay Analyses: An Investigation of the Effect of Weld Sequencing
Volume 6: Materials and Fabrication, Parts A and B, 2008The weld overlay process has been developed and applied to repair of nuclear reactor pipe girth welds for many years in BWR plants. The objectives of such repairs were to induce compressive axial residual stresses on the pipe inside surface, as well as increase the pipe thickness with a weld material that is not susceptible to stress-corrosion cracking.
T. Zhang +6 more
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Influence of Welding Sequence on Welding Deformation of T-Joint
2020Aiming at carbon dioxide gas shielded welding of T-groove of low carbon steel sheets in ship compartments, three practical welding processes were simulated by welding software Simufact Welding, and the effect of welding sequence on welding deformation was studied.
Yong Qin +5 more
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The Influence of Welding Sequence on Welding Deformation of Sheet Metal Stamping
Key Engineering Materials, 2015Connection process of welding has many characteristics, such as high efficiency, simple and low cost. The change of welding sequence makes the stress and welding deformation changed, so welding sequence has larger influences for welding deformation. The proper welding sequence is important to reduce the deformation of the workpiece, improve the process
Jiang Feng Shen +2 more
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Influence of a welding sequence on the welding residual stress of a thick plate
Modelling and Simulation in Materials Science and Engineering, 2005The residual stress in one-groove welding using an ellipsoidal heat source is analysed. The results show that it can ameliorate the residual stress distribution and greatly decrease the peak value of residual stress after welding if the converse welding method is adopted between adjacent layers in a multi-layer weld, or between adjacent beads in every ...
S D Ji, H Y Fang, X S Liu, Q G Meng
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Effect of welding sequences on residual stresses
Computers & Structures, 2003Accurately predicting welding residual stresses and developing an available welding sequence for a weld system are pertinent tasks since welding residual stress is inevitably produced in a welded structure. This study analyzes the thermomechanical behavior and evaluates the residual stresses with various types of welding sequence in single-pass, multi ...
Tso-Liang Teng +2 more
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Optimizing welding sequence with genetic algorithm
Computational Mechanics, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kadivar, M. H. +2 more
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An evolutionary algorithm for welding task sequence ordering
1998In this paper, we present some of the results of an ongoing research project, which aims at investigating the use of the evolutionary computation paradigm for real world problem solving in an industrial environment. One of the problems targeted in the investigation is that of job sequence optimization for welding robots operating in a shipyard. This is
Damsbo, Martin, Ruhoff, Peder Thusgaard
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A study on the effect of welding sequence on welding distortion in ship deck structure
Ships and Offshore Structures, 2019In this paper, a numerical simulation based on finite element method is presented to study the effect of welding sequences on the magnitude and shape of distortion when welding several flat-bar sti...
Navid Azad +2 more
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