Picosecond laser welding of optical to metal components
| Autor: | M. J. Daniel Esser, Robert R. Thomson, Michael Troughton, Jinanyong Chen, Richard Carter, Robert A. Lamb, Duncan Paul Hand, Ian Elder |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Alloy 02 engineering and technology Welding Plasma engineering.material 021001 nanoscience & nanotechnology Laser 01 natural sciences Thermal expansion Clamping law.invention 010309 optics law Picosecond 0103 physical sciences engineering Optoelectronics 0210 nano-technology business Ultrashort pulse |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| Popis: | We report on practical, industrially relevant, welding of optical components to themselves and aluminum alloy components. Weld formation is achieved through the tight focusing of a 5.9ps, 400kHz Trumpf laser operating at 1030nm. By selecting suitable surface preparation, clamping and laser parameters, the plasma can be confined, even with comparatively rough surfaces, by exploiting the melt properties of the glass. The short interaction time allows for a permanent weld to form between the two materials with heating limited to a region ~300 µm across. Practical application of these weld structures is typically limited due to the induced stress within the glass and, critically, the issues surrounding post-weld thermal expansion. We report on the measured strength of the weld, with a particular emphasis on laser parameters and surface preparation. |
| Databáze: | OpenAIRE |
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