Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera
We present an in situ process monitoring approach for remote fiber laser cutting, which is based on evaluating images from a high-speed camera. A specifically designed image processing algorithm allows the distinction between complete and incomplete cuts by analyzing spectral and geometric informati...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-04-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/8/2863 |
| _version_ | 1797443814080643072 |
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| author | Max Schleier Benedikt Adelmann Cemal Esen Ralf Hellmann |
| author_facet | Max Schleier Benedikt Adelmann Cemal Esen Ralf Hellmann |
| author_sort | Max Schleier |
| collection | DOAJ |
| description | We present an in situ process monitoring approach for remote fiber laser cutting, which is based on evaluating images from a high-speed camera. A specifically designed image processing algorithm allows the distinction between complete and incomplete cuts by analyzing spectral and geometric information of the melt pool from the captured images of the high-speed camera. The camera-based monitoring system itself is fit to a conventional laser deflection unit for use with high-power fiber lasers, with the optical detection path being coaxially aligned to the incident laser. Without external illumination, the radiation of the melt from the process zone is recorded in the visible spectral range from the top view and spatially and temporally resolved. The melt pool size and emitted sparks are evaluated in dependence of machining parameters such as feed rate, cycles, and focus position during cutting electrical sheets. |
| first_indexed | 2024-03-09T13:02:27Z |
| format | Article |
| id | doaj.art-21a27b944856487fb4ac40fc2553fd71 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T13:02:27Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-21a27b944856487fb4ac40fc2553fd712023-11-30T21:52:16ZengMDPI AGSensors1424-82202022-04-01228286310.3390/s22082863Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed CameraMax Schleier0Benedikt Adelmann1Cemal Esen2Ralf Hellmann3Applied Laser and Photonics Group, University of Applied Science Aschaffenburg, 63743 Aschaffenburg, GermanyApplied Laser and Photonics Group, University of Applied Science Aschaffenburg, 63743 Aschaffenburg, GermanyApplied Laser Technologies, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, GermanyApplied Laser and Photonics Group, University of Applied Science Aschaffenburg, 63743 Aschaffenburg, GermanyWe present an in situ process monitoring approach for remote fiber laser cutting, which is based on evaluating images from a high-speed camera. A specifically designed image processing algorithm allows the distinction between complete and incomplete cuts by analyzing spectral and geometric information of the melt pool from the captured images of the high-speed camera. The camera-based monitoring system itself is fit to a conventional laser deflection unit for use with high-power fiber lasers, with the optical detection path being coaxially aligned to the incident laser. Without external illumination, the radiation of the melt from the process zone is recorded in the visible spectral range from the top view and spatially and temporally resolved. The melt pool size and emitted sparks are evaluated in dependence of machining parameters such as feed rate, cycles, and focus position during cutting electrical sheets.https://www.mdpi.com/1424-8220/22/8/2863laser remote cuttinghigh-speed cameraimage processing |
| spellingShingle | Max Schleier Benedikt Adelmann Cemal Esen Ralf Hellmann Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera Sensors laser remote cutting high-speed camera image processing |
| title | Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera |
| title_full | Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera |
| title_fullStr | Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera |
| title_full_unstemmed | Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera |
| title_short | Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera |
| title_sort | image processing algorithm for in situ monitoring fiber laser remote cutting by a high speed camera |
| topic | laser remote cutting high-speed camera image processing |
| url | https://www.mdpi.com/1424-8220/22/8/2863 |
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