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Methods for rapid identification of anomalous layers in laser powder bed fusion...

by Luke R Scime, Desarae J Goldsby, Vincent C Paquit
Publication Type
Journal Name
Manufacturing Letters
Publication Date
Page Numbers
35 to 39

In situ process monitoring is a key requirement for increased industry acceptance of powder bed Additive Manufacturing. As sensing technologies increase in maturity, attention must also be given to effective data exploration techniques. These data are often high-resolution and multi-modal, with each build consisting of thousands of layers. Here, the authors propose two methods enabling users to rapidly identify layers of interest within a build. Both methods leverage results from deep learning based segmentations of in situ powder bed images. The first method is an unsupervised “reverse layer search” algorithm while the second method uses supervised machine learning.