Adaptive optics for control of the laser welding process
The laser head with fixed focus optics is commonly used for the deep penetration laser welding. In such case the geometry and position of the beam waist are defined by the focusing lens. If the laser beam incident on the focusing lens is not well collimated but divergent and its divergence can be...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2013-05-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20134800017 |
| _version_ | 1818876236453117952 |
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| author | Jedlička Petr Řeřucha Šimon Šarbort Martin Mrňa Libor |
| author_facet | Jedlička Petr Řeřucha Šimon Šarbort Martin Mrňa Libor |
| author_sort | Jedlička Petr |
| collection | DOAJ |
| description | The laser head with fixed focus optics is commonly used for the deep penetration laser welding. In such case the geometry and position of the beam waist are defined by the focusing lens. If the laser beam incident on the focusing lens is not well collimated but divergent and its divergence can be varied by proper adaptive optical elements, then also the geometry and position of the focus will be changeable. In this way it is possible to affect the energy coupling from the laser beam to the keyhole walls and thus to control the geometry and quality of the weld. In this paper we present a theoretical and numerical study of the beam shaping by adaptive optics and its influence on the weld quality. For the CO2 laser welding machine the adaptive optics was realized by a deformable mirror and itsti’ect was tested also experimentally. For the solid-state laser welding machine we designed a laser head with changeable distance between the optical fiber and the collimating lens and we simulated its performance. |
| first_indexed | 2024-12-19T13:39:11Z |
| format | Article |
| id | doaj.art-fcf6618ac7d44cb48731c7d7f1ca640c |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-19T13:39:11Z |
| publishDate | 2013-05-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-fcf6618ac7d44cb48731c7d7f1ca640c2022-12-21T20:19:04ZengEDP SciencesEPJ Web of Conferences2100-014X2013-05-01480001710.1051/epjconf/20134800017Adaptive optics for control of the laser welding processJedlička PetrŘeřucha ŠimonŠarbort MartinMrňa LiborThe laser head with fixed focus optics is commonly used for the deep penetration laser welding. In such case the geometry and position of the beam waist are defined by the focusing lens. If the laser beam incident on the focusing lens is not well collimated but divergent and its divergence can be varied by proper adaptive optical elements, then also the geometry and position of the focus will be changeable. In this way it is possible to affect the energy coupling from the laser beam to the keyhole walls and thus to control the geometry and quality of the weld. In this paper we present a theoretical and numerical study of the beam shaping by adaptive optics and its influence on the weld quality. For the CO2 laser welding machine the adaptive optics was realized by a deformable mirror and itsti’ect was tested also experimentally. For the solid-state laser welding machine we designed a laser head with changeable distance between the optical fiber and the collimating lens and we simulated its performance.http://dx.doi.org/10.1051/epjconf/20134800017 |
| spellingShingle | Jedlička Petr Řeřucha Šimon Šarbort Martin Mrňa Libor Adaptive optics for control of the laser welding process EPJ Web of Conferences |
| title | Adaptive optics for control of the laser welding process |
| title_full | Adaptive optics for control of the laser welding process |
| title_fullStr | Adaptive optics for control of the laser welding process |
| title_full_unstemmed | Adaptive optics for control of the laser welding process |
| title_short | Adaptive optics for control of the laser welding process |
| title_sort | adaptive optics for control of the laser welding process |
| url | http://dx.doi.org/10.1051/epjconf/20134800017 |
| work_keys_str_mv | AT jedlickapetr adaptiveopticsforcontrolofthelaserweldingprocess AT reruchasimon adaptiveopticsforcontrolofthelaserweldingprocess AT sarbortmartin adaptiveopticsforcontrolofthelaserweldingprocess AT mrnalibor adaptiveopticsforcontrolofthelaserweldingprocess |