A Review on Laser Beam Shaping Application in Laser‐Powder Bed Fusion

AR Bakhtari, HK Sezer, OE Canyurt… - Advanced …, 2024 - Wiley Online Library
Laser‐powder bed fusion (L‐PBF) is extensively adopted in the aerospace and automobile
industries for producing metallic components. The L‐PBF process involves rapid melting …

[HTML][HTML] Tailoring the microstructure of Fe-2.9 wt.% Si alloy in laser powder bed fusion using in-source beam shaping

F Galbusera, L Caprio, B Previtali, AG Demir - Optics & Laser Technology, 2024 - Elsevier
Tuning the irradiance profile of the laser beam opens up new possibilities in terms of
controlling the thermal field the material is subjected to during laser powder bed fusion (PBF …

Manipulating microstructure and mechanical property during laser powder bed fusion: Multi-material, in-situ alloying, and processing

M Chen, Y Ning, X Sun, T Liu, H Wei, K Zhang… - Journal of Alloys and …, 2024 - Elsevier
Laser powder bed fusion (L-PBF) has garnered significant interest since its inception as it
offers unparalleled advantages to fabricate complex-shaped metallic components. Due to its …

[HTML][HTML] Analytical modeling and characterization of ring beam profiles for high-power lasers used in industrial manufacturing

F Galbusera, L Caprio, B Previtali, AG Demir - Journal of Manufacturing …, 2024 - Elsevier
Active fibre lasers are widely used in the industry for different manufacturing applications
ranging from cutting, to welding and additive manufacturing. The recent introduction of the …

[HTML][HTML] Material dependent influence of ring/spot beam profiles in laser powder bed fusion

L Chechik, K Schwarzkopf, R Rothfelder… - Additive Manufacturing …, 2024 - Elsevier
In recent years, the topic of beam shaping for improved laser material processing has rapidly
grown influencing metal laser powder bed fusion (PBF-LB/M). Given the need to reduce the …

[HTML][HTML] Understanding precipitation during in-situ and post-heat treatments of Al-Mg-Sc-Zr alloys processed by powder-bed fusion

MS Mohebbi, S Nagy, Z Hájovská, M Nosko… - Additive …, 2024 - Elsevier
This study investigates the evolution of Sc-rich precipitates in Scalmalloy® processed using
Powder Bed Fusion (PBF) additive manufacturing. By combining microstructural analysis …

Identification of a descriptive beam size metric for complex beam shapes

L Chechik, M Schmidt - Procedia CIRP, 2024 - Elsevier
Traditionally, in laser processing, simple beam profiles such as Gaussian beam profiles or
top-hat profiles have been widely used. Recently, more complex beam shapes have been …

Optimal Beam Shapes: Fact or Fantasy?

L Chechik, K Schwarzkopf, R Rothfelder… - Available at SSRN … - papers.ssrn.com
In recent years, the topic of beam shaping for improved laser material processing has rapidly
grown influencing metal laser powder bed fusion (PBF-LB/M). Given the need to reduce cost …