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Automatised quality assessment in additive layer manufacturing using layer-by-layer surface measurements and deep learning

Le Roux, Léopold, Liu, Chao, Ji, Ze ORCID: https://orcid.org/0000-0002-8968-9902, Kerfriden, Pierre ORCID: https://orcid.org/0000-0002-7749-3996, Gage, Daniel, Feyer, Felix, Körner, Carolin and Bigot, Samuel ORCID: https://orcid.org/0000-0002-0789-4727 2021. Automatised quality assessment in additive layer manufacturing using layer-by-layer surface measurements and deep learning. Presented at: 14th CIRP Conference on Intelligent Computation in Manufacturing Engineering 2020, Naples, Italy, 15-17 July 2020. Procedia CIRP. , vol.99 Elsevier, pp. 342-347. 10.1016/j.procir.2021.03.050

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Abstract

Additive manufacturing (AM) has gained high research interests in the past but comes with some drawbacks, such as the difficulty to do in-situ quality monitoring. In this paper, deep learning is used on electron-optical images taken during the Electron Beam Melting (EBM) process to classify the quality of AM layers to achieve automatized quality assessment. A comparative study of several mainstream Convolutional Neural Networks to classify the images has been conducted. The classification accuracy is up to 95 %, which demonstrates the great potential to support in-process layer quality control of EBM.And the error analysis has shown that some human misclassification were correctly classified by the Convolutional Neural Networks.

Item Type: Conference or Workshop Item (Paper)
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: Elsevier
ISSN: 2212-8271
Date of First Compliant Deposit: 28 May 2021
Date of Acceptance: 31 May 2020
Last Modified: 11 Mar 2023 02:10
URI: https://orca.cardiff.ac.uk/id/eprint/141624

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