In situ process monitoring in selective laser sintering using optical coherence tomography
| Autor: | Adam Lewis, Austin McElroy, Jongwan Park, Scott Fish, Arnold D. Estrada, Joseph J. Beaman, Thomas E. Milner, Michael R. Gardner |
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| Rok vydání: | 2018 |
| Předmět: |
In situ
0209 industrial biotechnology Materials science Artificial Intelligence and Image Processing Sintering Image processing 02 engineering and technology Optical Physics Article law.invention 020901 industrial engineering & automation process monitoring Optical coherence tomography law medicine selective laser sintering Electrical and Electronic Engineering optical coherence tomography integumentary system medicine.diagnostic_test business.industry General Engineering Process (computing) Optics 021001 nanoscience & nanotechnology Frame rate Atomic and Molecular Physics and Optics Selective laser sintering Optoelectronics High temporal resolution Biomedical Imaging 0210 nano-technology business additive manufacturing |
| Zdroj: | Optical engineering (Redondo Beach, Calif.), vol 57, iss 4 |
| Popis: | Selective laser sintering (SLS) is an efficient process in additive manufacturing that enables rapid part production from computer-based designs. However, SLS is limited by its notable lack of in-situ process monitoring when compared to other manufacturing processes. We report the incorporation of optical coherence tomography into an SLS system in detail and demonstrate access to surface and sub-surface features. Video frame rate cross-sectional imaging reveals areas of sintering uniformity and areas of excessive heat error with high temporal resolution. We propose a set of image processing techniques for SLS process monitoring with OCT and report the limitations and obstacles for further OCT integration with SLS systems. |
| Databáze: | OpenAIRE |
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