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 …

Scanning strategy in selective laser melting (SLM): a review

H Jia, H Sun, H Wang, Y Wu, H Wang - The International Journal of …, 2021 - Springer
During the additive manufacturing (AM) process, energy is transferred from the energy beam
to the processed material. The high-energy input and uneven temperature distribution result …

Understanding keyhole induced-porosities in laser powder bed fusion of aluminum and elimination strategy

L Guo, H Wang, H Liu, Y Huang, Q Wei… - International Journal of …, 2023 - Elsevier
Laser powder bed fusion (LPBF) technology has the potential to revolutionize the fabrication
of complex metal components in the aerospace, medical, and automotive industries …

Heat transfer and fluid flow and their effects on the solidification microstructure in full-penetration laser welding of aluminum sheet

S Geng, P Jiang, X Shao, L Guo, X Gao - Journal of Materials Science & …, 2020 - Elsevier
Understanding the behaviors of heat transfer and fluid flow in weld pool and their effects on
the solidification microstructure are significant for performance improvement of laser welds …

Microscale interaction between laser and metal powder in powder-bed additive manufacturing: Conduction mode versus keyhole mode

H Wang, Y Zou - International Journal of Heat and Mass Transfer, 2019 - Elsevier
Metal additive manufacturing (AM) techniques, particularly laser powder-bed methods, have
shown tremendous advantages for producing high-value, complex, and customized …

A comprehensive model to quantify the effects of additional nano-particles on the printability in laser powder bed fusion of aluminum alloy and composite

L Guo, H Wang, Q Wei, H Liu, A Wang, Y Wu… - Additive …, 2022 - Elsevier
At present, it is recognized that nanoparticles can improve the printability of many metals in
fusion additive manufacturing, obtain finer microstructures and higher mechanical …

Laser beam and laser-arc hybrid welding of aluminium alloys

I Bunaziv, OM Akselsen, X Ren, B Nyhus, M Eriksson - Metals, 2021 - mdpi.com
Aluminium alloys are widely used in many industries due to their high strength-to-weight
ratios and resistance to corrosion. Due to their specific thermophysical properties and …

Overview of laser absorptivity measurement techniques for material processing

R Indhu, V Vivek, L Sarathkumar, A Bharatish… - Lasers in Manufacturing …, 2018 - Springer
During laser surface treatment, the beam absorption can vary considerably depending on
the surface quality, temperature and environment. The metallic surfaces exhibit higher …

Selective electron beam melting of Al0. 5CrMoNbTa0. 5 high entropy alloys using elemental powder blend

VV Popov, A Katz-Demyanetz, A Koptyug… - Heliyon, 2019 - cell.com
Abstract High Entropy Alloys (HEAs) is a novel promising class of multi-component materials
which may demonstrate superior mechanical properties useful for high-temperature …

Progresses on new generation laser direct writing technique

S Wang, Z Zhou, B Li, C Wang, Q Liu - Materials Today Nano, 2021 - Elsevier
Laser direct writing (LDW) system is a maskless, highly efficient, and cost-effective micro-
/nanofabrication tool and has been widely used in many fabrication fields such as Micro …