Finite-element Simulation of Heat Transfer in Electroslag Welding

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Goldar Ali; Ranjbarnodeh Eslam; Cheraghi Rizi Emad

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: JOURNAL OF MECHANICAL ENGINEERING AMIRKABIR (AMIRKABIR) Year:2024 | Volume:56 | Issue:9 Page(s): 1121-1136

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Information Journal Paper

Title

Finite-element Simulation of Heat Transfer in Electroslag Welding

Author(s)

Goldar Ali | Ranjbarnodeh Eslam | Cheraghi Rizi Emad | Issue Writer Certificate

Keywords

Finite-Element Simulation

heat transfer

Electroslag welding

Welding parameters

Abstract

Electroslag welding is widely used in column joints. However, the process of Electroslag welding has a higher heat input than other welding processes, which results in dramatic changes in microstructure and mechanical properties, especially grain size and toughness. These connections are very vulnerable when subjected to dynamic loads and earthquakes. Therefore, the study of heat transfers and its effect on the mechanical properties of these joints is important. Considering the importance of this, in the present study, a finite element model is proposed to study the thermal behavior of this process, then the accuracy of the model is measured according to the practical experiments of the microcontroller. For verification, several practical examples of welding were performed and then, to evaluate the size of the pit pool, welded sections of the macrovar were prepared to confirm the assumptions of the model. In the next step, the validated model is used to study the thermal behavior of the system and the distribution of temperature according to the variables of current, voltage and speed. In this regard, due to the complexity of the process, it is not possible to carry out all simulations with software menus, so much of the simulation was written with the language of the ANSYS software.

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