Simulating molten pool features of shipbuilding steel subjected to submerged arc welding

M Zhong, L Jiang, H Bai, S Basu, Z Wang… - Journal of Iron and Steel …, 2023 - Springer
Submerged arc welding process has been simulated to investigate the molten pool features
of EH36 shipbuilding steel. One case only involved the surface tension model, and another …

Impact of driving forces on molten pool in gas metal arc welding

WI Cho, SJ Na - Welding in the World, 2021 - Springer
A numerical scrutiny was performed to analyze the effect of driving forces on molten pool in
gas metal arc welding. In addition to the basic governing equations required for a general …

Molten pool behaviors and their influences on welding defects in narrow gap GMAW of 5083 Al-alloy

C Zhu, J Cheon, X Tang, SJ Na, H Cui - … Journal of Heat and Mass Transfer, 2018 - Elsevier
The welding defects such as porosity and lack-of-fusion is more likely to occur in the narrow
gap gas metal arc welding (NG-GMAW) of aluminum alloy. In this study, a three-dimensional …

Analysis of heat transfer and material flow in hybrid KPAW-GMAW process based on the novel three dimensional CFD simulation

D Wu, S Tashiro, Z Wu, K Nomura, X Hua… - International Journal of …, 2020 - Elsevier
In this study, a novel electrode-arc-droplet-weld pool model considering the complex
interactive phenomena of arc, keyhole and weld pool is developed to investigate heat …

CFD based visualization of the finger shaped evolution in the gas metal arc welding process

J Cheon, DV Kiran, SJ Na - International Journal of Heat and Mass Transfer, 2016 - Elsevier
A CFD based numerical study of the gas metal arc welding process was used to visualize
momentum flow in the produced fingertip shaped molten pool. Arc process models were …

Study of steel-aluminium joining under the influence of current waveforms using advanced CMT process variants

T Kumar, DV Kiran, N Arora… - Materials and …, 2022 - Taylor & Francis
In the conventional GMAW process, increasing weld deposition increases the heat input,
which adversely affects the steel-aluminum joint performance due to the brittle IMC layer …

Numerical simulation of slag movement from Marangoni flow for GMAW with computational fluid dynamics

DW Cho, YD Park, M Cheepu - … Communications in Heat and Mass Transfer, 2021 - Elsevier
This study analyzed the behavior of molten slag, which is an oxide generated during spray
mode gas metal arc welding, with computational fluid dynamics. The molten slag, composed …

Analysis of molten pool behavior by flux-wall guided metal transfer in low-current submerged arc welding process

DW Cho, DV Kiran, SJ Na - International Journal of Heat and Mass Transfer, 2017 - Elsevier
A three-dimensional numerical heat transfer and fluid flow model is developed to
understand the temperature distribution and molten pool behavior in a low-current …

Effects of arc interaction on lack-of-fusion and porosity in tandem NG-GMAW of 5083 Al-Mg alloy

S Han, X Tang, G Liu, L Xu, H Cui, C Shao - Journal of Manufacturing …, 2022 - Elsevier
The tandem narrow-gap gas metal arc welding (NG-GMAW) is an advanced high efficient
technology for joining thick section metals. However, the common defects such as lack-of …

Three-dimensional finite element modeling of pulsed AC gas metal arc welding process

DV Kiran, J Cheon, N Arif, H Chung, SJ Na - The International Journal of …, 2016 - Springer
The behavior of the welding arc in the pulsed DC and AC gas metal arc welding processes
was studied using real-time recorded current, voltage waveforms, and synchronized high …