T.F. Flint
YOU?
Author Swipe
View article: Numerical modelling of phase changes in laser materials processing using OpenFOAM
Numerical modelling of phase changes in laser materials processing using OpenFOAM Open
Numerical modelling is an important tool for understanding laser processing. It allows clarification of the involved physics, which is difficult or even impossible to measure and observe during experiments. Modelling of laser material proc…
View article: Simulating chemical mixing and molten pool shape in dissimilar welds using thermal fluid dynamics
Simulating chemical mixing and molten pool shape in dissimilar welds using thermal fluid dynamics Open
Estimating the properties of dissimilar metal welded joints made using modern high-energy beam techniques presents significant challenges due to the complex nature of the process. These complexities arise from the different thermal and mec…
View article: A fundamental investigation into the role of beam focal point, and beam divergence, on thermo-capillary stability and evolution in electron beam welding applications
A fundamental investigation into the role of beam focal point, and beam divergence, on thermo-capillary stability and evolution in electron beam welding applications Open
In this work a novel mathematical framework, that fully describes fusion and vapourisation state transitions in multi-component substrates, has been applied to assist in understanding the fundamental mechanisms of thermo-capillary (keyhole…
View article: A numerical study of processing parameters and their effect on the melt-track profile in Laser Powder Bed Fusion processes
A numerical study of processing parameters and their effect on the melt-track profile in Laser Powder Bed Fusion processes Open
Mathematical models provide valuable insight into the Laser Beam Powder Bed Fusion (PBF-LB) process. Numerical modelling of the PBF-LB process and the influence of the process parameters on the melt pool topology are presented in this stud…
View article: laserbeamFoam: Laser ray-tracing and thermally induced state transition simulation toolkit
laserbeamFoam: Laser ray-tracing and thermally induced state transition simulation toolkit Open
The application of high energy density photonic sources to the surface of metallic substrates causes localised topological evolution as the interface deforms due to hydrodynamic forces through fusion and vapourisation state transitions. Un…
View article: A fundamental analysis of factors affecting chemical homogeneity in the laser powder bed fusion process
A fundamental analysis of factors affecting chemical homogeneity in the laser powder bed fusion process Open
In this work a novel mathematical framework, that fully describes the fusion and vapourisation state transitions in multi-component systems, has been applied to assist in understanding the fundamental mechanisms of defect formation and che…
View article: A thermal fluid dynamics framework applied to multi-component substrates experiencing fusion and vaporisation state transitions
A thermal fluid dynamics framework applied to multi-component substrates experiencing fusion and vaporisation state transitions Open
The fluid dynamics of multi-component alloy systems subjected to high energy density sources of heat largely determines the local composition, microstructure, and material properties. In this work a multi-component thermal fluid dynamics f…
View article: Prediction of Dilution and Its Impact on the Metallurgical and Mechanical Behavior of a Multipass Steel Weldment
Prediction of Dilution and Its Impact on the Metallurgical and Mechanical Behavior of a Multipass Steel Weldment Open
A three-pass groove weld made by gas-tungsten arc welding in a 20-mm thick SA508 steel plate is modeled to predict the thermal, metallurgical, and mechanical behavior. The dilution for each pass is estimated as the proportion of base mater…
View article: Characterisation and modelling of tempering during multi-pass welding
Characterisation and modelling of tempering during multi-pass welding Open
Weld-induced in-process tempering of martensite/bainite was studied through characterisation and modelling. Three-pass gas tungsten arc (GTA) and submerged arc (SA) welds were produced in grooved plates made from a low-alloy ferritic (SA50…
View article: A semi-analytical solution for the transient temperature field generated by a volumetric heat source developed for the simulation of friction stir welding
A semi-analytical solution for the transient temperature field generated by a volumetric heat source developed for the simulation of friction stir welding Open
The accurate prediction of transient temperature fields, induced in alloysystems during advanced manufacturing processes, is critical. These fields influence the magnitude and distribution of residual stresses, the evolution ofmaterial mic…
View article: Effects of dilution on alloy content and microstructure in multi-pass steel welds
Effects of dilution on alloy content and microstructure in multi-pass steel welds Open
Dilution represents the contribution from base material to weld metal and its important effects are complicated for multi-pass steel welds. In this study, the dilution was determined for each bead in a 3-pass gas tungsten arc (GTA) weld an…
View article: Semi-analytical solutions for the transient temperature fields induced by a moving heat source in an orthogonal domain
Semi-analytical solutions for the transient temperature fields induced by a moving heat source in an orthogonal domain Open
A semi-analytical solution has been derived for the transient temperature eldsthat are generated in a three-dimensional solid body when it is subjected toone or more moving heat sources. The solution was derived using the Green'sfunction m…