Defects and anomalies in powder bed fusion metal additive manufacturing
Metal additive manufacturing is a disruptive technology that is revolutionizing the
manufacturing industry. Despite its unrivaled capability for directly fabricating metal parts …
manufacturing industry. Despite its unrivaled capability for directly fabricating metal parts …
Towards the next generation of machine learning models in additive manufacturing: A review of process dependent material evolution
Additive manufacturing facilitates producing of complex parts due to its design freedom in a
wide range of applications. Despite considerable advancements in additive manufacturing …
wide range of applications. Despite considerable advancements in additive manufacturing …
Critical instability at moving keyhole tip generates porosity in laser melting
Laser powder bed fusion is a dominant metal 3D printing technology. However, porosity
defects remain a challenge for fatigue-sensitive applications. Some porosity is associated …
defects remain a challenge for fatigue-sensitive applications. Some porosity is associated …
Laser melting modes in metal powder bed fusion additive manufacturing
In the laser powder bed fusion additive manufacturing of metals, extreme thermal conditions
create many highly dynamic physical phenomena, such as vaporization and recoil …
create many highly dynamic physical phenomena, such as vaporization and recoil …
Laser additive manufacturing of steels
Despite strong interest from many industrial sectors driving demand and advancements in
laser additive manufacturing (LAM) of steels, some issues remain as barriers limiting the …
laser additive manufacturing (LAM) of steels, some issues remain as barriers limiting the …
In-situ characterization and quantification of melt pool variation under constant input energy density in laser powder bed fusion additive manufacturing process
Size and shape of a melt pool play a critical role in determining the microstructure in
additively manufactured metals. However, it is very challenging to directly characterize the …
additively manufactured metals. However, it is very challenging to directly characterize the …
Energy coupling mechanisms and scaling behavior associated with laser powder bed fusion additive manufacturing
In situ optical absorptivity measurements are carried out to clarify the physics of the laser‐
material interactions involved and to validate both finite element and analytical models …
material interactions involved and to validate both finite element and analytical models …
Building digital twins of 3D printing machines
Geometrical conformity, microstructure and properties of additively manufactured (AM)
components are affected by the desired geometry and many process variables within given …
components are affected by the desired geometry and many process variables within given …
Role of molten pool mode on formability, microstructure and mechanical properties of selective laser melted Ti-6Al-4V alloy
Relative densities, microstructures, microhardness and tensile properties of single-track and
cuboid Ti-6Al-4V samples produced by selective laser melting (SLM) are investigated to …
cuboid Ti-6Al-4V samples produced by selective laser melting (SLM) are investigated to …
Effect of processing parameters on the densification of an additively manufactured 2024 Al alloy
Understanding the densification behaviours and formation mechanisms of defects are
essential to fabricate high quality and high strength aluminium components using selective …
essential to fabricate high quality and high strength aluminium components using selective …