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Simulation of Quasi-Simultaneous Laser Transmission Welding of Plastics

  • Thermo-mechanical simulation offers great opportunities to optimize welding processes of plastics. For realistic simulation, the temperature dependent mechanical properties need to be implemented from ambient temperature to temperatures above the flow temperature. Standard test methods are insufficient for characterization in the entire temperature range because close to the flow temperature the material is too soft for tensile tests and too stiff for rheometry. Therefore, an optimization strategy is developed, that determines unknown material parameters by testing in welding simulations. The unknown parameters are iteratively adjusted to minimize the mismatch between computed and measured set-paths. Thus, important process characteristics are calculated realistically, enabling the computer aided assessment of the weld quality.

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Metadaten
Author:Johannes Käsbauer, Anton Schmailzl, Jens Prehm, Tobias Loose, Stefan HierlGND
DOI:https://doi.org/10.1016/j.procir.2020.09.136
Parent Title (English):Procedia CIRP
Subtitle (English):Optimization of Material Parameters in Broad Temperature Range
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2020
Release Date:2021/01/25
Tag:material modelling; optimization; parameterization; plastics welding; simulation
GND Keyword:Kunststoffschweißen; Thermomechanische Eigenschaft; Simulation
Volume:94
First Page:737
Last Page:741
Konferenzangabe:11th CIRP Conference on Photonic Technologies [LANE 2020] on September 7-10, 2020
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:Sensorik
Licence (German):Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International