Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties

S.H. Klippstein, F. Heiny, N. Pashikanti, M. Gessler, H.-J. Schmid, JOM - The Journal of The Minerals, Metals & Materials Society (TMS) 74 (2021) 1149–1157.

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Journal Article | Published | English
Abstract
Confidence in additive manufacturing technologies is directly related to the predictability of part properties, which is influenced by several factors. To gain confidence, online process monitoring with dedicated and reliable feedback is desirable for every process. In this project, a powder bed monitoring system was developed as a retrofit solution for the EOS P3 laser sintering machines. A high-resolution camera records each layer, which is analyzed by a Region-Based Convolutional Neural Network (Mask R-CNN). Over 2500 images were annotated and classified to train the network in detecting defects in the powder bed at a very high level. Each defect is checked for intersection with exposure areas. To distinguish between acceptable imperfections and critical defects that lead to part rejection, the impact of these imperfections on part properties is investigated.
Publishing Year
Journal Title
JOM - The Journal of The Minerals, Metals & Materials Society (TMS)
Volume
74
Page
1149–1157
Conference
Solid Freeform Fabrication 2021
Conference Location
Online
Conference Date
02.08.2021 – 04.08.2021
LibreCat-ID

Cite this

Klippstein SH, Heiny F, Pashikanti, N, Gessler M, Schmid H-J. Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties. JOM - The Journal of The Minerals, Metals & Materials Society (TMS). 2021;74:1149–1157. doi:https://doi.org/10.1007/s11837-021-05042-w
Klippstein, S. H., Heiny, F., Pashikanti, N., Gessler, M., & Schmid, H.-J. (2021). Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties. JOM - The Journal of The Minerals, Metals & Materials Society (TMS), 74, 1149–1157. https://doi.org/10.1007/s11837-021-05042-w
@article{Klippstein_Heiny_Pashikanti,_Gessler_Schmid_2021, title={Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties}, volume={74}, DOI={https://doi.org/10.1007/s11837-021-05042-w }, journal={JOM - The Journal of The Minerals, Metals & Materials Society (TMS)}, publisher={Springer}, author={Klippstein, Sven Helge and Heiny, Florian and Pashikanti, Nagaraju and Gessler, Monika and Schmid, Hans-Joachim}, year={2021}, pages={1149–1157} }
Klippstein, Sven Helge, Florian Heiny, Nagaraju Pashikanti, Monika Gessler, and Hans-Joachim Schmid. “Powder Spread Process Monitoring in Polymer Laser Sintering and Its Influences on Part Properties.” JOM - The Journal of The Minerals, Metals & Materials Society (TMS) 74 (2021): 1149–1157. https://doi.org/10.1007/s11837-021-05042-w .
S. H. Klippstein, F. Heiny, N. Pashikanti, M. Gessler, and H.-J. Schmid, “Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties,” JOM - The Journal of The Minerals, Metals & Materials Society (TMS), vol. 74, pp. 1149–1157, 2021, doi: https://doi.org/10.1007/s11837-021-05042-w .
Klippstein, Sven Helge, et al. “Powder Spread Process Monitoring in Polymer Laser Sintering and Its Influences on Part Properties.” JOM - The Journal of The Minerals, Metals & Materials Society (TMS), vol. 74, Springer, 2021, pp. 1149–1157, doi:https://doi.org/10.1007/s11837-021-05042-w .

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