Three-dimensional numerical simulation of flow and splash behavior in an oxygen coal combustion melting and separating furnace
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Iron and Steel Research International"
DOI: 10.1007/s42243-021-00615-0
Abstract: The change of bubbles and the position of the tuyere in an oxygen coal combustion melting and separating furnace affect the flow and splash behavior of the molten pool. To analyze this problem further, a… read more here.
Keywords: splash behavior; numerical simulation; molten pool; flow ... See more keywords
Role of operating and environmental conditions in determining molten pool dynamics during electron beam melting and selective laser melting
Sign Up to like & getrecommendations! Published in 2020 at "Additive manufacturing"
DOI: 10.1016/j.addma.2020.101559
Abstract: Abstract Electron beam melting (EBM) and selective laser melting (SLM) are representative powder bed fusion additive manufacturing methods. Because EBM and SLM have different operating and environmental conditions, such as ambient pressure of the chamber,… read more here.
Keywords: molten pool; laser; pool dynamics; pool ... See more keywords
Phase-field investigation of dendrite growth in the molten pool with the deflection of solid/liquid interface
Sign Up to like & getrecommendations! Published in 2019 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2019.109128
Abstract: Abstract The solidification process in the molten pool significantly determines the microstructures of weld metal. The motion of heat source makes the solidification parameters, temperature gradient G and growth rate R, changing continuously across the… read more here.
Keywords: pool; solidification; deflection; molten pool ... See more keywords
Mesoscopic study of thermal behavior, fluid dynamics and surface morphology during selective laser melting of Ti-based composites
Sign Up to like & getrecommendations! Published in 2020 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2020.109598
Abstract: Abstract A mesoscopic simulation based on the randomly packed powder bed model was developed to study the thermal behaviors during selective laser melting (SLM) of Ti-based composites. Effects of processing parameters on the thermal behavior,… read more here.
Keywords: fluid; molten pool; laser; surface morphology ... See more keywords
Sensitivity of driving forces on molten pool behavior and defect formation in high-speed gas tungsten arc welding
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2016.11.025
Abstract: Abstract The effect of multi-coupled driving forces on molten pool behavior and defect formation in high-current and high-speed gas tungsten arc welding is investigated quantitatively and systematically through combination of sensitivity analysis and experimentally validated… read more here.
Keywords: high speed; molten pool; defect formation; formation ... See more keywords
Study of molten pool dynamics and porosity formation mechanism in full penetration fiber laser welding of Al-alloy
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2019.119089
Abstract: Abstract To study molten pool dynamics, root hump formation, periodic keyhole behavior in full penetration laser welding (FPLW) of aluminum alloy, a numerical simulation was carried out, in which volume of fluid (VOF) method and… read more here.
Keywords: porosity; alloy; molten pool; study molten ... See more keywords
A lumped parametric analytical model for predicting molten pool temperature and clad geometry in pre-placed powder laser cladding
Sign Up to like & getrecommendations! Published in 2021 at "Optik"
DOI: 10.1016/j.ijleo.2021.168015
Abstract: Abstract Pre-placed powder laser cladding is one of the simplest laser-based deposition techniques, having high material usage efficiency and capable to provide sound clad quality. However, the quality along with the geometrical aspects of the… read more here.
Keywords: molten pool; laser; pre placed; pool temperature ... See more keywords
Heat transfer and fluid flow of molten pool during selective laser melting of AlSi10Mg powder: Simulation and experiment
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Manufacturing Processes"
DOI: 10.1016/j.jmapro.2017.02.009
Abstract: Abstract Numerical simulation of heat transfer and fluid flow during selective laser melting (SLM) under point exposure scan of AlSi10Mg powder is performed. The influence of exposure time and point distance on temperature field, velocity… read more here.
Keywords: transfer fluid; molten pool; heat transfer; fluid flow ... See more keywords
Finite element simulation of thermal behavior in single-track multiple-layers thin wall without-support during selective laser melting
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Manufacturing Processes"
DOI: 10.1016/j.jmapro.2019.04.019
Abstract: Abstract The huge instantaneous energy is inputted in the powder layer during selective laser melting (SLM), which results in the transient high temperature and the complex temperature distribution. The temperature distribution and cooling rate of… read more here.
Keywords: molten pool; thin wall; temperature; layer ... See more keywords
Monitoring molten pool temperature, grain size and molten pool plasma with integrated area of the spectrum during laser additive manufacturing
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Manufacturing Processes"
DOI: 10.1016/j.jmapro.2021.01.040
Abstract: Abstract A new approach is presented in this paper to link the integrated area of the spectral curve with the molten pool temperature, the grain size and molten pool plasma during laser additive manufacturing. A… read more here.
Keywords: integrated area; molten pool; temperature; pool temperature ... See more keywords
Suppression mechanism of weld appearance defects in tandem TIG welding by numerical modeling
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Materials Research and Technology"
DOI: 10.1016/j.jmrt.2021.06.042
Abstract: Abstract In high-speed tungsten inert gas (TIG) welding, the premature solidification of liquid metal in low-temperature zone of molten pool results in the formation of weld appearance defects (WADs) such as undercut and humping weld.… read more here.
Keywords: liquid metal; molten pool; tig welding; tig ... See more keywords