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| Naji, M. |
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Thomson, Robert R.
Heriot-Watt University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Selective plane illumination optical endomicroscopy with polymer imaging fiberscitations
- 2023A miniature fiber optic ablation probe manufactured via ultrafast laser inscription and selective chemical etchingcitations
- 2020Multi-core fiber-fed integral field spectrograph (MCIFU)-IIIcitations
- 2017Towards industrial ultrafast laser microwelding: SiO2 and BK7 to aluminum alloycitations
- 2016Picosecond laser welding of optical to structural materials
- 2016Surface Separation Investigation of Ultrafast Pulsed Laser Welding
- 2016Stress-state manipulation in fused silica via femtosecond laser irradiationcitations
- 2014Picosecond laser welding of similar and dissimilar materialscitations
- 2011Ultrafast laser writing of optical waveguides in ceramic Ybcitations
- 2010Laser action from an ultrafast laser inscribed Nd-doped silicate glass waveguidecitations
- 2010Ultrafast laser inscribed Nd-doped silicate glass waveguide laser
- 2008Three-core tellurite fiber with multiple rare earth emissioncitations
- 2007Multiple rare earth emissions in a multicore tellurite fiber with a single pump wavelengthcitations
- 2006Internal gain from an erbium-doped oxyfluoride-silicate glass waveguide fabricated using femtosecond waveguide inscriptioncitations
- 2005Active waveguide fabrication in erbium-doped oxyfluoride silicate glass using femtosecond pulsescitations
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article
Towards industrial ultrafast laser microwelding: SiO2 and BK7 to aluminum alloy
Abstract
We report systematic analysis and comparison of ps-laser microwelding of industry relevant Al6082 parts to SiO<sub>2 </sub>and BK7. Parameter mapping of pulse energy and focal depth on the weld strength is presented. The welding process was found to be strongly dependent on the focal plane but has a large tolerance to variation in pulse energy. Accelerated lifetime tests by thermal cycling from −50° to +90°C are presented. Welds in Al6082-BK7 parts survive over the full temperature range where the ratio of thermal expansion coefficients is 3.4:1. Welds in Al6082-SiO<sub>2</sub> parts (ratio 47.1:1) survive only a limited temperature range.