Role of porosity defects in metal 3D printing: Formation mechanisms, impacts on properties and mitigation strategies
Abstract Metal 3D printing (3DP), a state-of-the-art manufacturing technology that brings the
potential to fabricate complex structures at low cost and reduced energy consumption, has …
potential to fabricate complex structures at low cost and reduced energy consumption, has …
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 …
Keyhole fluctuation and pore formation mechanisms during laser powder bed fusion additive manufacturing
Keyhole porosity is a key concern in laser powder-bed fusion (LPBF), potentially impacting
component fatigue life. However, some keyhole porosity formation mechanisms, eg, keyhole …
component fatigue life. However, some keyhole porosity formation mechanisms, eg, keyhole …
Machine learning–aided real-time detection of keyhole pore generation in laser powder bed fusion
Porosity defects are currently a major factor that hinders the widespread adoption of laser-
based metal additive manufacturing technologies. One common porosity occurs when an …
based metal additive manufacturing technologies. One common porosity occurs when an …
Data-driven discovery of dimensionless numbers and governing laws from scarce measurements
Dimensionless numbers and scaling laws provide elegant insights into the characteristic
properties of physical systems. Classical dimensional analysis and similitude theory fail to …
properties of physical systems. Classical dimensional analysis and similitude theory fail to …
Pore defects in Laser Powder Bed Fusion: Formation mechanism, control method, and perspectives
Laser powder bed fusion (LPBF) additive manufacturing (AM) technology has been applied
to manufacture complex components which have already been used in aerospace …
to manufacture complex components which have already been used in aerospace …
MeltpoolNet: Melt pool characteristic prediction in Metal Additive Manufacturing using machine learning
Characterizing melt pool shape and geometry is essential in Metal Additive Manufacturing
(MAM) to control the printing process, and avoid defects. Predicting melt pool flaws based on …
(MAM) to control the printing process, and avoid defects. Predicting melt pool flaws based on …
In-situ experimental and high-fidelity modelling tools to advance understanding of metal additive manufacturing
Metal additive manufacturing has seen extensive research and rapidly growing applications
for its high precision, efficiency, flexibility, etc. However, the appealing advantages are still …
for its high precision, efficiency, flexibility, etc. However, the appealing advantages are still …
Mechanistic artificial intelligence (mechanistic-AI) for modeling, design, and control of advanced manufacturing processes: Current state and perspectives
Today's manufacturing processes are pushed to their limits to generate products with ever-
increasing quality at low costs. A prominent hurdle on this path arises from the multiscale …
increasing quality at low costs. A prominent hurdle on this path arises from the multiscale …
Additive manufacturing of tungsten, tungsten-based alloys, and tungsten matrix composites
Tungsten (W) materials are gaining more and more attention due to the extended
applications of metallic systems in the extreme environments. Given W's unique …
applications of metallic systems in the extreme environments. Given W's unique …