Detecting keyhole pore defects and monitoring process signatures during laser powder bed fusion: A correlation between in situ pyrometry and ex situ X-ray …

JB Forien, NP Calta, PJ DePond, GM Guss… - Additive …, 2020 - Elsevier
… In addition, careful analysis of pyrometer signal reveals a … We directly measured the
location of pores by ex situ X-ray … were performed using an open architecture system (Aconity3D, …

reAM250—An open-source research platform for process monitoring and control in Powder Bed Fusion of Metals using a laser beam

DL Wenzler, D Rauner, H Panzer, T Mair… - Procedia CIRP, 2024 - Elsevier
… Microstructure and hardness response of novel 316L stainless steel composite with TiN addition
… An openarchitecture metal powder bed fusion system for in-situ process measurements. …

In-situ Data Acquisition and Tool Development for Additive Manufacturing Metal Powder Systems

N Calta, P Collins, A Martin, M Matthews, JN Weker… - 2019 - osti.gov
addition to this project team have begun work on in situ X-ray measurements to study laser
powder bed fusion … Moore, AJ An openarchitecture metal powder bed fusion system for in-situ

In situ measurements of layer roughness during laser powder bed fusion additive manufacturing using low coherence scanning interferometry

PJ DePond, G Guss, S Ly, NP Calta, D Deane… - Materials & Design, 2018 - Elsevier
… an open architecture laser powder bed fusion machine while height measurements are made
in-line along the process … In addition to overhangs printed with fixed power reductions over …

Characterization of in-situ measurements based on layerwise imaging in laser powder bed fusion

F Caltanissetta, M Grasso, S Petrò, BM Colosimo - Additive Manufacturing, 2018 - Elsevier
… an LPBF prototype system with an open architecture that … addition to the variability source
decomposition, the bias between in-situ and ex-situ sample mean dimensional measurements

Detecting keyhole porosity and monitoring process signatures in additive manufacturing: an in situ pyrometry and ex situ X-ray radiography correlation

J Forien, N Calta, P DePond, G Guss, T Roehling… - Additive …, 2020 - osti.gov
… performed using an open architecture system (Aconity3D, … powder bed fusion of stainless
steel 316L alloys measured by X… laser powder bed fusion additive manufacturing process, Addit

In situ microstructure analysis of Inconel 625 during laser powder bed fusion

F Schmeiser, E Krohmer, C Wagner, N Schell… - Journal of Materials …, 2021 - Springer
… Using a custom-built LPBF machine designed for in situ diffraction measurements, experiments
… In addition, they acknowledge Helmholtz-Zentrum Hereon for the provision of laboratory …

Process optimization of complex geometries using feed forward control for laser powder bed fusion additive manufacturing

CL Druzgalski, A Ashby, G Guss, WE King… - Additive …, 2020 - Elsevier
… based on previously measured in situ pyrometry and finite … , an open architecture laser powder
bed fusion metal printer … files generated by the process optimization software described in …

Process modeling in laser powder bed fusion towards defect detection and quality control via machine learning: The state-of-the-art and research challenges

P Wang, Y Yang, NS Moghaddam - Journal of Manufacturing Processes, 2022 - Elsevier
… LPBF including process modeling, in-situ process monitoring… In addition to the process
parameters, the surface topology of … established PINN method in estimating the melt pool length, …

[HTML][HTML] Fluid and particle dynamics in laser powder bed fusion

P Bidare, I Bitharas, RM Ward, MM Attallah, AJ Moore - Acta Materialia, 2018 - Elsevier
system We have previously reported the design and characterisation of an open architecture
PBF system for in-situ measurements … it contains plasma in addition to metal vapour, which …