Numerical simulation of the temperature field, weld profile, and weld pool dynamics in laser welding of aluminium alloy

A Duggirala, P Kalvettukaran, B Acherjee, S Mitra - Optik, 2021 - Elsevier
A transient 3-d thermo-fluid model is developed to simulate the heat transfer and weld pool
dynamics during the deep penetration laser welding of aluminium alloy AA2024. Numerical …

Sulfur-induced transitions of thermal behavior and flow dynamics in laser powder bed fusion of 316L powders

Z Li, X He, S Li, X Kan, Y Yin, G Yu - Thermal Science and Engineering …, 2023 - Elsevier
Abstract A three-dimensional (3D) powder-scale model is developed to analyze the melt
pool dynamics in laser powder bed fusion (L-PBF) of 316L powders considering the …

Analysis of surface tension driven flow and solidification behavior in laser linear welding of stainless steel

Z Li, G Yu, X He, S Li, C Tian, B Dong - Optics & Laser Technology, 2020 - Elsevier
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 …

Parameter-process-structure relationships of stray grains (SGs) formation in laser direct energy deposition of single crystal (SX) superalloy

Z Li - Journal of Manufacturing Processes, 2024 - Elsevier
Abstract Laser Direct Energy Deposition (LDED) emerges as a promising technology to
repair damaged single crystal (SX) superalloy components with superior properties due to …

Dissimilar laser welding of commercially pure copper and stainless steel 316L

K Antony, TR Rakeshnath - Materials Today: Proceedings, 2020 - Elsevier
This research work mainly focuses on the mechanical and metallurgical studies on
commercially pure copper and stainless steel 316L dissimilar joints produced by laser …

Numerical simulation of the melting and alloying processes of elemental titanium and boron powders using selective laser alloying

W Ye, S Zhang, LL Mendez, M Farias, J Li, B Xu… - Journal of Manufacturing …, 2021 - Elsevier
Abstract Titanium Diboride (TiB 2) has excellent performances in terms of hardness,
mechanical strength, wear resistance, and corrosion resistance, but its application is still …

Probing thermocapillary convection and multisolute dilution in laser welding of dissimilar miscible metals

Z Li, G Yu, X He, C Tian, S Li, H Li - International Journal of Thermal …, 2022 - Elsevier
Coupled with convection flow, multisolute dilution was investigated by an improved
numerical model during laser dissimilar welding of 304 stainless steel and nickel. Thermal …

Fluid flow and solute dilution in laser linear butt joining of 304SS and Ni

Z Li, G Yu, X He, S Li, Z Li - International Journal of Heat and Mass Transfer, 2020 - Elsevier
Laser linear welding combined with advanced auto-control technology is a promising joint
method of dissimilar metals. In this study, an improved three-dimensional model was …

Mass transport and solidification phenomenon in dissimilar metals arc welding

F Hejripour, BT Helenbrook, DT Valentine… - International Journal of …, 2019 - Elsevier
A 3D transient numerical simulation is developed to study the arc welding of dissimilar
metals for three sets of processing parameters. The model is used to investigate the fluid …

Surface tension-driven flow and its correlation with mass transfer during L-DED of Co-based powders

Z Li, G Yu, X He, S Li, Z Shu - Metals, 2022 - mdpi.com
Laser direct energy deposition (L-DED) is one of the most promising additive manufacturing
methods, which has been paid more and more attention in recent years. An improved heat …