Predictive process mapping for laser powder bed fusion: A review of existing analytical solutions

AK Agrawal, B Rankouhi, DJ Thoma - Current Opinion in Solid State and …, 2022 - Elsevier
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 …

[HTML][HTML] Understanding melt pool characteristics in laser powder bed fusion: An overview of single-and multi-track melt pools for process optimization

J Wang, R Zhu, Y Liu, L Zhang - Advanced Powder Materials, 2023 - Elsevier
Laser powder bed fusion (LPBF) has made significant progress in producing solid and
porous metal parts with complex shapes and geometries. However, LPBF produced parts …

Melting modes in laser powder bed fusion

S Patel, M Vlasea - Materialia, 2020 - Elsevier
Depending on processing conditions, laser powder bed fusion (LPBF) is known to have two
operational regimes–conduction mode and keyhole mode. Heat conduction is the dominant …

Methodology and experimental validation of analytical melt pool models for laser powder bed fusion

V Coen, L Goossens, B Van Hooreweder - Journal of Materials Processing …, 2022 - Elsevier
Abstract Laser Powder Bed Fusion (LPBF) is a frequently used Additive Manufacturing (AM)
technique for producing metal parts with complex shapes. One of the crucial factors in …

[HTML][HTML] Validated dimensionless scaling law for melt pool width in laser powder bed fusion

Y Yang, A Großmann, P Kühn, J Mölleney… - Journal of Materials …, 2022 - Elsevier
The melting process during laser powder bed fusion (LPBF) is accompanied by complex
physical phenomena, which can be rarely scaled with acceptable effort to utilize the melting …

Using design of experiments in finite element modeling to identify critical variables for laser powder bed fusion

L Ma, J Fong, B Lane, S Moylan, J Filliben, A Heckert… - 2015 - repositories.lib.utexas.edu
Input of accurate material and simulation parameters is critical for accurate predictions in
Laser Powder Bed Fusion (L-PBF) Finite Element Analysis (FEA). It is challenging and …

Measurements of melt pool geometry and cooling rates of individual laser traces on IN625 bare plates

B Lane, J Heigel, R Ricker, I Zhirnov… - Integrating materials and …, 2020 - Springer
The complex physical nature of the laser powder bed fusion (LPBF) process warrants use of
multiphysics computational simulations to predict or design optimal operating parameters or …

Analytical prediction of balling, lack-of-fusion and keyholing thresholds in powder bed fusion

W Wang, J Ning, SY Liang - Applied Sciences, 2021 - mdpi.com
Featured Application A complete analytical approach was proposed to predict the
occurrence of lack-of-fusion, balling, and keyholing defects in laser powder bed fusion. The …

Optimization of laser powder bed fusion processing using a combination of melt pool modeling and design of experiment approaches: Density control

M Letenneur, A Kreitcberg, V Brailovski - Journal of Manufacturing and …, 2019 - mdpi.com
A simplified analytical model of the laser powder bed fusion (LPBF) process was used to
develop a novel density prediction approach that can be adapted for any given powder …

Computational framework for the simulation of multi material laser powder bed fusion

C Tang, L Yao, H Du - International Journal of Heat and Mass Transfer, 2022 - Elsevier
With the capability to build components with freeform geometries, laser powder bed fusion (L-
PBF) is considered as one of the most promising techniques for industrial applications …