Welding processes are a fundamental part of modern engineering manufacturing. The
simulation of materials joining techniques requires the application of thermal models …

In arc welding based additive manufacturing, the surface topographies of deposited layer
are more complex than conventional welding, therefore, the distribution of the …

Arc-directed energy deposition (Arc-DED) with the vertical position offers significant potential
for in-situ fabrication of overhang structures. However, the vertical position application is …

A transient three-dimensional thermal-fluid-metallurgy model was proposed to study the
surface tension driven flow and welding metallurgical behavior during laser linear welding of …

A three-dimensional numerical simulation was performed using computational fluid
dynamics in the vertical-downward position. The molten pool dynamic behaviors play a …

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 …

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 …

Thick plates of 5083 aluminum alloy are welded with GMAW and GMAW-TW processes; the
influence of weld pool convection on porosity formation, microstructure, and mechanical …

Molten pool behavior plays an important role during bead formation in wire–arc direct
energy deposition (DED) processes. However, this pool is susceptible to external forces …

The weld forming characteristics of GMAW-based additive manufacturing on curved surface
are dramatically influenced by gravity. Large inclined angle of the forming surface would …