Electron-optical observation of smoke evolution during electron beam powder bed fusion

Ye J, Renner J, Körner C, Fu Z (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Additive Manufacturing Elsevier

Book Volume: 70

Article Number: 103578

DOI: 10.1016/j.addma.2023.103578

Abstract

Electron Beam Powder Bed Fusion (PBF-EB) is an additive manufacturing technique that produces customized components using an electron beam under vacuum conditions. A so-called smoke phenomenon might occur during the process, leading to an explosion-like powder spreading in the vacuum chamber, which is catastrophic for the build process. This phenomenon happens rapidly and it is hard to be observed from its initial stage. In this study, the powder smoke phenomenon and its development are investigated using an ELectron-Optical (ELO) monitoring system, which collects backscattered electrons during PBF-EB in similarity to scanning electron microscopy. In comparison to the optical process monitoring tool based on high-speed camera, the ELO system shows very promising results for real-time smoke detection and possibly prevention.

Authors with CRIS profile

Jihui Ye Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) (WTM) Jakob Renner Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) (WTM) Carolin Körner Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle) (WTM) Zongwen Fu Advanced Materials and Processes (ZMP)

How to cite

APA:

Ye, J., Renner, J., Körner, C., & Fu, Z. (2023). Electron-optical observation of smoke evolution during electron beam powder bed fusion. Additive Manufacturing, 70. https://doi.org/10.1016/j.addma.2023.103578

MLA:

Ye, Jihui, et al. "Electron-optical observation of smoke evolution during electron beam powder bed fusion." Additive Manufacturing 70 (2023).

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