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Evaluation for Angular Distortion of Welding Plate
2021Welding is essential in our life. It is crucial to nurture welding skills in Japan nowadays. The experts have to evaluate the many beginners' welding. Since the experts' burden is critical, a computational assistant for evaluating beginners' welding is required. This paper describes a simple evaluation system of welding plates by beginners. The authors
Shigeru Kato +6 more
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Influences of welding parameters on distortion
International Journal of Microstructure and Materials Properties, 2010Laser beam welding (LBW) is an established serial process in manufacturing of parts for aircraft industries, which is characterised by the advantages of weight reduction and shortened process time compared to conventional riveting techniques. However distortions can occur after LBW. Depending on the intensity the distortions impair, e.g., assembly work
Kai Schimanski +2 more
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Distortion Analysis of Welded Stiffeners
Journal of Ship Production, 2001This paper presents a welding distortion analysis approach for T-stiffeners with a particular emphasis on welding-induced buckling instabilities. Two-dimensional thermomechanical welding process simulations are performed to determine the residual stress and angular distortion.
O. A. Vanli, P. Michaleris
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Effect of Transformation Temperature of Weld Metal on Welding Distortion
Volume 5: Materials Technology; CFD and VIV, 2008Welding distortion during welding is an inevitable outcome of weld metal shrinkage due to non-uniform heating and cooling in welded joints. Several studies have investigated methods of estimating and controlling welding distortion in order to construct steel structures correctly, easily and efficiently.
Yasushi Morikage +5 more
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Distortion Control during Welding
2014The local material expansion and contraction involved in welding result in permanent deformations or instability i.e., welding distortion. Considerable efforts have been made in controlling welding distortion prior to, during or after welding. Thermal Tensioning (TT) describes a group of in-situ methods to control welding distortion.
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Welding Residual Stress and Distortion
2016The panels, subassemblies and assemblies being welded are subjected to thermal cycles of heating followed by cooling. It causes shrinkage forces to develop in the welded panels. The shrinkage forces tend to cause different degrees of distortion.
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Numerical Methods to Predict Distortion in Welded Components
Volume 6: Materials and Fabrication, Parts A and B, 2008Numerical methods have been established to simulate welding processes. Of particular interest is the ability to predict residual stress fields. These fields are often used in support of structural integrity assessments where they have the potential, when accurately characterised, to offer significantly less conservative predictions of residual profiles
Leggatt, Neil A +3 more
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Effect of Weld Groove Area on Distortion of Butt Welded Joints in Submerged Arc Welding
International Journal of Manufacturing, Materials, and Mechanical Engineering, 2018This article describes how welding is the most prominent process for joining components into complex assemblies or structures. The various distortions induced by the welding process due to the inherent local non-uniform heating and cooling cycles associated with the joining processes.
Mahendramani G, Lakshmana Swamy N
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The effect of tack welding on numerically calculated welding-induced distortion
Journal of Materials Processing Technology, 2012Abstract A single-layer pulsed gas metal arc weld of structural steel S355J2+N with a thickness of 5 mm is experimentally and numerically investigated. Two tack welds are considered in the numerical simulation into two different ways. First, the tack welds are represented by elements belonging to the initial material. This implies that the “tack weld
C. Heinze, C. Schwenk, M. Rethmeier
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Welding residual stress and distortion
1992A characteristic of application-oriented analysis of welding residual stress and distortion is the mainly decoupled representation of the thermal, mechanical and microstructural processes (illustrated by the line arrows in Fig. 3). The basis of stress and distortion analysis is the temperature field during welding, determined numerically or by ...
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