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Characterization of Laser Beam Shaping Optics Based on Their Ablation Geometry of Thin Films

Autor: Stefan Rung, Johannes Barth, Ralf Hellmann

Publikováno v: Micromachines, Vol 5, Iss 4, Pp 943-953 (2014)

Thin film ablation with pulsed nanosecond lasers can benefit from the use of beam shaping optics to transform the Gaussian beam profile with a circular footprint into a Top-Hat beam profile with a rectangular footprint. In general, the quality of the

Externí odkaz: https://doaj.org/article/9acfbc4539d5415e988e9bfbfe7f47cf

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Inline repair of blowouts during laser welding

Autor: Hansen, K. S., Olsen, F. O., Kristiansen, Morten, Madsen, Ole

Publikováno v: Hansen, K S, Olsen, F O, Kristiansen, M & Madsen, O 2017, ' Inline repair of blowouts during laser welding ', Physics Procedia, vol. 89, pp. 58-69 . https://doi.org/10.1016/j.phpro.2017.08.022

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f28f3118a367ff3cd6516aa2bae34f7d
https://vbn.aau.dk/ws/files/270627466/1_s2.0_S1875389217301487_main.pdf

Beam Shaping to Control of Weldpool Size in Width and Depth

Autor: Flemming Ove Olsen, Morten Kristiansen, K. S. Hansen

Publikováno v: Physics Procedia. 56:467-476

The introduction of high power single mode fiber lasers has given deeper and narrower laser welds than seen previously. In some cases the weld becomes too narrow and must be expanded to fit the geometrical shape of a given weld task. It was suggested

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::686b578a1fe445d17e6c8a60239d6c19