The search result changed since you submitted your search request. Documents might be displayed in a different sort order.
  • search hit 31 of 60
Back to Result List

Gap-Bridging during Quasi-Simultaneous Laser Transmission Welding

  • Tightness is often the main requirement for quasi-simultaneous laser transmission welds. However, remaining gaps cannot be detected by the used set-path monitoring. By using a pyrometer in combination with a 3D-scanner, weld seam interruptions can be localized precisely while welding, due to temperature deviations along the weld contour. To analyze the temperature signal in correlation to the progress of gap-bridging, T-joint samples with predefined gaps are welded. The set-path is measured synchronously. Additionally, the temperature distribution and the influence of the thermal expansion of the polymers are studied by a thermo-mechanical FEM-process simulation. On top of that, the melt blow-out of the welded samples is analyzed using μCT-measurements. The experiments have shown that closing of a gap can be identified reliably by the temperature signal and that the squeezed melt flow into the gap and the thermal expansion in the gap zone accelerates gap-bridging. Furthermore the inserted heat can be adapted in the fault zone, in order to avoid thermal damage.

Export metadata

Additional Services

Share in Twitter Search Google Scholar Statistics
Metadaten
Author:Anton Schmailzl, Stefan HierlGND, Michael Schmidt
DOI:https://doi.org/10.1016/j.phpro.2016.08.113
ISSN:1875-3892
ISSN:1875-3884
Parent Title (English):Physics Procedia
Publisher:Elsevier
Place of publication:Amsterdam [u.a.]
Editor:Michael Schmidt
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2016
Release Date:2021/02/09
Volume:83
First Page:1073
Last Page:1082
Konferenzangabe:9th International Conference on Photonic Technologies - LANE 2016, September 19-22, Fürth, Germany
Institutes:Fakultät Maschinenbau
Fakultät Maschinenbau / Labor Laser-Materialbearbeitung (LMP)
Begutachtungsstatus:peer-reviewed
OpenAccess Publikationsweg:Gold Open Access- Erstveröffentlichung in einem/als Open-Access-Medium
research focus:Produktion und Systeme
Licence (German):Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International
Einverstanden ✔
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.