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Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):

R. Gómez Vázquez, A. Otto, J. Peternel:
"Recent Advances in the Multiphysical Simulation of Laser Assisted Manufacturing Processes";
Vortrag: LiM - Lasers in Manufacturing 2017, München (eingeladen); 26.06.2017 - 29.06.2017; in: "Proceedings of the LiM 2017", (2017), Paper-Nr. 181, 12 S.



Kurzfassung deutsch:
The industrial implementation of laser assisted processing technologies is nowadays well-established due to the unique combination of accuracy, productivity and adaptability that laser sources permit. As laser assisted techniques allow for precisely controlling the thermal heat input it is possible e.g. to produce high-end components with a minimum influence on the functional characteristics. On the other hand, finding optimal process parameters is often a difficult task which involves the use of experimental methods that not always provide enough relevant process information. In this regard numerical simulations can help to fill this gap with the use of multiphysical models.

In this paper we present both recent achievements as well as current ongoing development lines of a multiphysical model designed to accomplish the simulation of laser assisted manufacturing processes. The general design of the model allows for the simulation of different kinds of laser processes such as welding, cutting or more recently even ultra-short pulse ablation [Otto et al.]. The model is able to perform the simulation of the complete process, thus providing useful information such as the influence of keyhole front inclination or of surface tension on the flow of the molten material and its consequences after the solidification. New developments presented are aimed to extend the physical capabilities of the current model as well as to improve the calculation performance in massively parallel scenarios such as HPC-clusters or cloud environments.

References:

Otto et al.: "Numerical Simulations - A Versatile Approach for Better Understanding Dynamics in Laser Material Processing", Physics Procedia A, 12, pp 11-20 (2011) http://dx.doi.org/10.1016/j.phpro.2011.03.003

Kurzfassung englisch:
The industrial implementation of laser assisted processing technologies is nowadays well-established due to the unique combination of accuracy, productivity and adaptability that laser sources permit. As laser assisted techniques allow for precisely controlling the thermal heat input it is possible e.g. to produce high-end components with a minimum influence on the functional characteristics. On the other hand, finding optimal process parameters is often a difficult task which involves the use of experimental methods that not always provide enough relevant process information. In this regard numerical simulations can help to fill this gap with the use of multiphysical models.

In this paper we present both recent achievements as well as current ongoing development lines of a multiphysical model designed to accomplish the simulation of laser assisted manufacturing processes. The general design of the model allows for the simulation of different kinds of laser processes such as welding, cutting or more recently even ultra-short pulse ablation [Otto et al.]. The model is able to perform the simulation of the complete process, thus providing useful information such as the influence of keyhole front inclination or of surface tension on the flow of the molten material and its consequences after the solidification. New developments presented are aimed to extend the physical capabilities of the current model as well as to improve the calculation performance in massively parallel scenarios such as HPC-clusters or cloud environments.

References:

Otto et al.: "Numerical Simulations - A Versatile Approach for Better Understanding Dynamics in Laser Material Processing", Physics Procedia A, 12, pp 11-20 (2011) http://dx.doi.org/10.1016/j.phpro.2011.03.003

Schlagworte:
multiphysics; simulation; laser welding; laser cutting


Elektronische Version der Publikation:
http://publik.tuwien.ac.at/files/publik_266915.pdf


Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.