Pore defects in Laser Powder Bed Fusion: Formation mechanism, control method, and perspectives

C Du, Y Zhao, J Jiang, Q Wang, H Wang, N Li… - Journal of Alloys and …, 2023 - Elsevier
Laser powder bed fusion (LPBF) additive manufacturing (AM) technology has been applied
to manufacture complex components which have already been used in aerospace …

[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 …

Microstructure and mechanical properties of SiC-reinforced Inconel 718 composites fabricated by laser cladding

J Ning, Q Lan, L Zhu, L Xu, Z Yang, P Xu, P Xue… - Surface and Coatings …, 2023 - Elsevier
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 …

The influence of novel beam shapes on melt pool shape and mechanical properties of LPBF produced Al-alloy

F Galbusera, L Caprio, B Previtali, AG Demir - Journal of Manufacturing …, 2023 - Elsevier
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 …

In-situ experimental and high-fidelity modelling tools to advance understanding of metal additive manufacturing

L Wang, Q Guo, L Chen, W Yan - International Journal of Machine Tools …, 2023 - Elsevier
Metal additive manufacturing has seen extensive research and rapidly growing applications
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 …

Defects control of aluminum alloys and their composites fabricated via laser powder bed fusion: A review

H Yang, J Sha, D Zhao, F He, Z Ma, C He, C Shi… - Journal of Materials …, 2023 - Elsevier
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 …

[HTML][HTML] Process qualification of laser powder bed fusion based on processing-defect structure-fatigue properties in Ti-6Al-4V

SP Narra, AD Rollett, A Ngo, D Scannapieco… - Journal of Materials …, 2023 - Elsevier
The aim of this manuscript is to give a compact overview of the results that illustrate the
applicability of processing-structure-property relationships in the increasingly important …

[HTML][HTML] High frequency beam oscillation keyhole dynamics in laser melting revealed by in-situ x-ray imaging

Z Wu, G Tang, SJ Clark, A Meshkov… - Communications …, 2023 - nature.com
The metal additive manufacturing industry is actively developing instruments and strategies
to enable higher productivity, optimal build quality, and controllable as-built microstructure. A …

High fidelity model of directed energy deposition: Laser-powder-melt pool interaction and effect of laser beam profile on solidification microstructure

SA Khairallah, EB Chin, MJ Juhasz, AL Dayton… - Additive …, 2023 - Elsevier
Metal additive manufacturing technologies keep receiving a great deal of interest as well as
strong requests to develop methods to link the process science to printed parts performance …