SYSTEMS AND METHODS FOR POWDER BED ADDITIVE MANUFACTURING ANOMALY DETECTION
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United States of America Patent
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Issued Date -
May 4, 2023
app pub date -
Oct 3, 2022
filing date -
Oct 30, 2020
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Abstract
Detection and classification of anomalies for powder bed metal additive manufacturing. Anomalies, such as recoater blade impacts, binder deposition issues, spatter generation, and some porosities, are surface-visible at each layer of the building process. A multi-scaled parallel dynamic segmentation convolutional neural network architecture provides additive manufacturing machine and imaging system agnostic pixel-wise semantic segmentation of layer-wise powder bed image data. Learned knowledge is easily transferrable between different additive manufacturing machines. The anomaly detection can be conducted in real-time and provides accurate and generalizable results.
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