Steel Weldability Investigation by Single and Double-Pass Weld Thermal Cycle Simulation

Dunđer, Marko; Samarđžić, Ivan; Šimunović, Goran; Konjatić, Pejo

doi:10.2507/ijsimm19-2-510

Cited by 5 publications

(6 citation statements)

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“…because of small width of HAZ [8]. For example, in our previous contribution to the understanding of the different microstructures in welded joints of Inc 738 LC super alloy using the thermal cycle simulation [9], we found that the obtained microstructures by thermal cycle simulation of welding correspond to those observed in the same zone of the real welded joint realized by TIG welding.…”

Section: Rdms000812 13(3)2020mentioning

confidence: 60%

“…

However, the investigation of the HAZ in the real weldments is not easy, because it is not possible to obtain an appropriate specimen at very narrow locations in the HAZ [6,7].Weld thermal cycle simulation can be used for optimizing the welding technology since it enables some mechanical testing for properties that cannot be made on real welded joints

…”

mentioning

confidence: 99%

“…However, the investigation of the HAZ in the real weldments is not easy, because it is not possible to obtain an appropriate specimen at very narrow locations in the HAZ [6,7].…”

mentioning

confidence: 99%

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Investigation by Thermal Cycle Simulation of Heat Affected Zone in Welded AA2014 Aluminum Alloy

Boumerzoug

2020

RDMS

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Section: Rdms000812 13(3)2020mentioning

confidence: 60%

“…

…”

mentioning

confidence: 99%

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Investigation by Thermal Cycle Simulation of Heat Affected Zone in Welded AA2014 Aluminum Alloy

Boumerzoug

2020

RDMS

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“…It has been found that the study of the HAZ of real welded joints is not easy because of the narrowness of the HAZ [11]. Welding simulation is the appropriate technique to determine the different sub-zones in HAZ.…”

Section: Methods Of Investigation Of Hazmentioning

confidence: 99%

Heat Affected Zone in Welded Metallic Materials

Boumerzoug

2020

MCMS

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Welding is used extensively for pipe welding, aerospace, aviation, biomedical implants, fabrication of race cars, choppers, etc. Generally, the metallurgy of the welded joint performed by thermal fusion joining process can be categorized into two major regions, the fusion zone (FZ) and the heat-affected zone (HAZ). The heat-affected zone (HAZ) is a region that is thermally affected by the welding treatment. The main difficulty associated with welding is the prevention of unexpected deterioration of properties as a result of the microstructure evolutions which reduce the resistance to brittle fracture in the heat-affected zone (HAZ). Properties of the HAZ are different from those of the base material. According to the literature, the HAZ is the most problematic area in the high strength steels weld. For this reason, many research works investigated this critical zone in welded joint. The main research questions and results related to the HAZ will be presented.

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“…Then, the maximum residual stress can be reduced by taking measures, like process optimization, to effectively decrease the weldment reject rate. However, the prediction accuracy is affected by many factors (e.g., actual welding conditions and parameters) during the numerical simulation of welding [5,6].…”

Section: Introductionmentioning

confidence: 99%

Control of Welding Residual Stress and Deformation for the Rod Support of a Crane

Zhou¹,

Zhu²,

Sun³

et al. 2022

Int. j. simul. model.

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The counter jib and rod support are the main stress-bearing parts of crane due to large load. But the long weld seams of their joints produce great residual stress and deformation affecting the welding strength. In order to reduce the residual stress and the deformation simultaneously, an optimal welding procedure was proposed considering the effective length of welding seam. Firstly, a theoretic model of welding seam was built as T-joint of Q355 steel. The accuracy of model was verified by the welding experiments. By numerical simulation, the appropriate welding process parameters were obtained. Four welding procedures were designed to investigate the influence of the welding sequence. Results show that the welding sequence has a great influence on residual stress and deformation of the long welding seam. The welding quality can be improved by segmented welding and simultaneous welding. The optimized welding procedure of long welding seam can reduce the residual stress by 8.04 % and the maximum deformation by 74.1 % considering welding sequence. Therefore, it is recommended in the actual welding process of crane.

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Steel Weldability Investigation by Single and Double-Pass Weld Thermal Cycle Simulation

Cited by 5 publications

References 0 publications

Investigation by Thermal Cycle Simulation of Heat Affected Zone in Welded AA2014 Aluminum Alloy

Investigation by Thermal Cycle Simulation of Heat Affected Zone in Welded AA2014 Aluminum Alloy

Heat Affected Zone in Welded Metallic Materials

Control of Welding Residual Stress and Deformation for the Rod Support of a Crane

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