On the use of spatter signature for in-situ monitoring of Laser Powder Bed Fusion

G Repossini, V Laguzza, M Grasso, BM Colosimo - Additive Manufacturing, 2017 - Elsevier
… of the spattering behaviour via in-situ signal analysis. … of spatter-related information acquired
in-situ via high-speed machine vision for the development of in-process monitoring tools. …

A review of spatter in laser powder bed fusion additive manufacturing: In situ detection, generation, effects, and countermeasures

Z Li, H Li, J Yin, Y Li, Z Nie, X Li, D You, K Guan… - Micromachines, 2022 - mdpi.com
… on the build area, a long-exposure near-infrared in situ monitoring associated with image
analysis was employed to determine the exact locations using the EOS EOSTATE Exposure …

[HTML][HTML] In-situ detection of redeposited spatter and its influence on the formation of internal flaws in laser powder bed fusion

C Schwerz, A Raza, X Lei, L Nyborg, E Hryha… - Additive …, 2021 - Elsevier
… detect spatter redeposits via in-situ monitoring and to couple the detections to lack of fusion.
In-situ monitoring of spatter has mainly been used to elucidate the formation mechanisms …

In situ monitoring of selective laser melting using plume and spatter signatures by deep belief networks

D Ye, JYH Fuh, Y Zhang, GS Hong, K Zhu - ISA transactions, 2018 - Elsevier
laser melting (SLM) manufactured components. This study provides a flexible and integrated
method for in situ process monitoring … (b) spatter condensates on the powder bed at laser

In-situ measurement and monitoring methods for metal powder bed fusion: an updated review

M Grasso, A Remani, A Dickins… - Measurement …, 2021 - iopscience.iop.org
signatures', ie measurable quantities, and we leave the discussion of 'derived signatures',
ie … thermal history of the process and its by-products, such as spatters and plume emissions. …

A statistical learning method for image-based monitoring of the plume signature in laser powder bed fusion

M Grasso, BM Colosimo - Robotics and Computer-Integrated Manufacturing, 2019 - Elsevier
signatures to design and implement statistical monitoring … a methodology to monitor the LPBF
process via in-situ infrared (IR) … use of spatters and plume properties as process signatures

[HTML][HTML] In-situ sensing, process monitoring and machine control in Laser Powder Bed Fusion: A review

R McCann, MA Obeidi, C Hughes, É McCarthy… - Additive …, 2021 - Elsevier
Laser plume and plasma emissions, splatter ejection and ambient gas pressure and flow
can have an impact on the IR emission and thus contribute a source of error to thermal …

Monitoring and detection of meltpool and spatter regions in laser powder bed fusion of super alloy Inconel 625

L Yang, L Lo, S Ding, T Özel - Progress in Additive Manufacturing, 2020 - Springer
In situ monitoring of LPBF process is essential to detect the … in-process monitoring of laser
powder bed fusion process using … the time signature of the meltpool and its vicinity during laser

In-situ monitoring and detection of spatter agglomeration and delamination during laser-based powder bed fusion of Invar 36

M Yakout, I Phillips, MA Elbestawi, Q Fang - Optics & Laser Technology, 2021 - Elsevier
… the laser melting process. This paper presents an in-situ monitoring setup for detecting
spatters and … The size, shape, count, and cooling rate of spatter particles are evaluated using a …

Process defects and in situ monitoring methods in metal powder bed fusion: a review

M Grasso, BM Colosimo - Measurement Science and Technology, 2017 - iopscience.iop.org
… tools for in situ monitoring of powder bed fusion (PBF) … most relevant process signatures and
the in situ sensing approaches … When the spatters fall on the powder bed, they can produce …