Defects and anomalies in powder bed fusion metal additive manufacturing

A Mostafaei, C Zhao, Y He, SR Ghiaasiaan… - Current Opinion in Solid …, 2022 - Elsevier
Metal additive manufacturing is a disruptive technology that is revolutionizing the
manufacturing industry. Despite its unrivaled capability for directly fabricating metal parts …

[HTML][HTML] A review of multi-scale and multi-physics simulations of metal additive manufacturing processes with focus on modeling strategies

M Bayat, W Dong, J Thorborg, AC To, JH Hattel - Additive Manufacturing, 2021 - Elsevier
Numerical simulations have recently shown their potential as a robust, cheap and reliable
tool for predicting the quality of components produced by metal additive manufacturing …

[HTML][HTML] Influence of particle morphology and size distribution on the powder flowability and laser powder bed fusion manufacturability of Ti-6Al-4V alloy

SE Brika, M Letenneur, CA Dion, V Brailovski - Additive Manufacturing, 2020 - Elsevier
Laser powder bed fusion (LPBF) additive manufacturing technology is sensitive to variations
in powder particle morphology and size distribution. However, the absence of a clear link …

A critical review of powder-based additive manufacturing of ferrous alloys: Process parameters, microstructure and mechanical properties

H Fayazfar, M Salarian, A Rogalsky, D Sarker… - Materials & Design, 2018 - Elsevier
Additive manufacturing (AM) is an advanced manufacturing technology, enabling production
of complex shapes by adding material layer-upon-layer, as distinct from conventional …

Prediction of lack-of-fusion porosity for powder bed fusion

M Tang, PC Pistorius, JL Beuth - Additive Manufacturing, 2017 - Elsevier
A geometry-based simulation is used to predict porosity caused by insufficient overlap of
melt pools (lack of fusion) in powder bed fusion. The inputs into the simulation are hatch …

Laser powder bed fusion additive manufacturing of metals; physics, computational, and materials challenges

WE King, AT Anderson, RM Ferencz… - Applied Physics …, 2015 - pubs.aip.org
The production of metal parts via laser powder bed fusion additive manufacturing is growing
exponentially. However, the transition of this technology from production of prototypes to …

Process phenomena and material properties in selective laser sintering of polymers: A review

F Lupone, E Padovano, F Casamento, C Badini - Materials, 2021 - mdpi.com
Selective laser sintering (SLS) is a powder bed fusion technology that uses a laser source to
melt selected regions of a polymer powder bed based on 3D model data. Components with …

Simulation of melt pool behaviour during additive manufacturing: Underlying physics and progress

PS Cook, AB Murphy - Additive Manufacturing, 2020 - Elsevier
Reliable computational models of metal additive manufacturing will assist in optimising part
quality, and are likely to play a role in component qualification. A key component of these …

In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing

US Bertoli, G Guss, S Wu, MJ Matthews… - Materials & Design, 2017 - Elsevier
Detailed understanding of the complex melt pool physics plays a vital role in predicting
optimal processing regimes in laser powder bed fusion additive manufacturing. In this work …

Modeling of additive manufacturing processes for metals: Challenges and opportunities

MM Francois, A Sun, WE King, NJ Henson… - Current Opinion in Solid …, 2017 - Elsevier
With the technology being developed to manufacture metallic parts using increasingly
advanced additive manufacturing processes, a new era has opened up for designing novel …