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 …
A review of spatter in laser powder bed fusion additive manufacturing: In situ detection, generation, effects, and countermeasures
Spatter is an inherent, unpreventable, and undesired phenomenon in laser powder bed
fusion (L-PBF) additive manufacturing. Spatter behavior has an intrinsic correlation with the …
fusion (L-PBF) additive manufacturing. Spatter behavior has an intrinsic correlation with the …
Microstructure and mechanical properties of SiC-reinforced Inconel 718 composites fabricated by laser cladding
Laser cladding provides the feasibility for fabricating various ceramic-reinforced metal-matrix
composite coatings, where the reinforcement content plays a critical role in influencing the …
composite coatings, where the reinforcement content plays a critical role in influencing the …
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 …
Predictive process mapping for laser powder bed fusion: A review of existing analytical solutions
One of the main challenges in the laser powder bed fusion (LPBF) process is making dense
and defect-free components. These porosity defects are dependent upon the melt pool …
and defect-free components. These porosity defects are dependent upon the melt pool …
[HTML][HTML] Beam shaping technology and its application in metal laser additive manufacturing: A review
J Bi, L Wu, S Li, Z Yang, X Jia, MD Starostenkov… - Journal of Materials …, 2023 - Elsevier
Laser additive manufacturing (AM) technology is widely applied in manufacturing critical
components (eg, rocket fuel nozzles, satellite antenna mounts and human implants, etc.) in …
components (eg, rocket fuel nozzles, satellite antenna mounts and human implants, etc.) in …
The influence of novel beam shapes on melt pool shape and mechanical properties of LPBF produced Al-alloy
New generation of multi-core fiber laser sources provide in-source dynamic beam shaping.
Such sources can switch between Gaussian and ring beams, providing new irradiance …
Such sources can switch between Gaussian and ring beams, providing new irradiance …
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 …
Effect of beam energy density characteristics on microstructure and mechanical properties of Nickel-based alloys manufactured by laser directed energy deposition
Y Zhao, W Sun, Q Wang, Y Sun, J Chen, C Du… - Journal of Materials …, 2023 - Elsevier
The energy density distribution directly affects the molten-pool temperature gradient, cooling
and solidification rate of additive manufacturing (AM), which in turn affects the mechanical …
and solidification rate of additive manufacturing (AM), which in turn affects the mechanical …
Defects control of aluminum alloys and their composites fabricated via laser powder bed fusion: A review
Laser powder bed fusion (L-PBF) technique, as the mainstream technology in metal additive
manufacturing, enables the fabrication of aluminum alloys and their composite components …
manufacturing, enables the fabrication of aluminum alloys and their composite components …