CFD simulation of molten pool dynamic behavior on vertical-downward position in P-GMAW process

JH Park, DW Cho, HS Moon - … Communications in Heat and Mass Transfer, 2022 - Elsevier
A three-dimensional numerical simulation was performed using computational fluid
dynamics in the vertical-downward position. The molten pool dynamic behaviors play a …

A study on molten pool behavior in the one pulse one drop GMAW process using computational fluid dynamics

DW Cho, JH Park, HS Moon - International Journal of Heat and Mass …, 2019 - Elsevier
This study conducted three-dimensional transient numerical simulations of molten pool
behavior for the one pulse one drop mode in the gas metal arc welding process. A high …

Development of an automatic orbital welding system with robust weaving width control and a seam-tracking function for narrow grooves

D Baek, HS Moon, SH Park - The International Journal of Advanced …, 2017 - Springer
From a broad point of view, seam tracking has been one of the main challenges with respect
to welding automation. Several attempts at automation have been successful in seam …

Influence of gravity on molten pool behavior and analysis of microstructure on various welding positions in pulsed gas metal arc welding

JH Park, SH Kim, HS Moon, MH Kim - Applied Sciences, 2019 - mdpi.com
This study performed welding on various welding positions in the flat, overhead, and vertical
down positions using a pulsed gas metal arc welding (P-GMAW) process. Despite the same …

Advanced automatic welding system for offshore pipeline system with seam tracking function

JH Park, HS Moon - Applied Sciences, 2020 - mdpi.com
Automatic welding technology is a solution to increase welding productivity and improve
welding quality in offshore pipe welding. To increase welding productivity, it is necessary to …

[HTML][HTML] Machine learning for prediction of arc length for seam tracking in tandem welding

보욱서, 영철정, 영태조 - Journal of Welding and Joining, 2020 - e-jwj.org
A tandem welding process is frequently used in the welding of large structures with the aim
of improving productivity and deposition rate. However, in this process, considerable thermal …

High-deposition-rate position welding of Al 5083 alloy for spherical-type liquefied natural gas tank

C Kim, Y Ahn, KB Lee, D Kim - Proceedings of the Institution …, 2016 - journals.sagepub.com
High-deposition-rate welding is used in the fabrication of liquefied natural gas tanks from
thick aluminium plates because the weld defect generally increases and the productivity …

[PDF][PDF] Optimization of weld bead penetration in pulsed gas metal arc welding using genetic algorithm

KM Kanti, PS Rao, GR Janardhana - International Journal of …, 2013 - academia.edu
The weld quality is highly influenced by various process parameters involved in the process.
This can be achieved by meeting quality requirements of bead geometry. Inadequate depth …

Effect of process parameters on root pass welding and analysis of microstructure in V-groove pulsed gas metal arc welding for mild steel

JH Park, SH Kim, HS Moon, MH Kim… - The International Journal of …, 2020 - Springer
This study performed root pass welding with a V-groove using a pulsed gas metal arc
welding process for mild steel. Welding process parameters such as weaving, root gap size …

Linear mathematical model for seam tracking with an arc sensor in P-GMAW processes

W Liu, L Li, Y Hong, J Yue - Sensors, 2017 - mdpi.com
Arc sensors have been used in seam tracking and widely studied since the 80s and
commercial arc sensing products for T and V shaped grooves have been developed …