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Analysis of Temperature Gradients during Simultaneous Laser Beam Melting of Polymers

  • By simultaneous laser beam melting (SLBM), different polymer powders can be processed to multi-material parts, which offers the potential to enlarge the field of application for conventional LBM. In a SLBM process, a powder bed consisting of different polymers and therefore with different melting and crystallization temperatures is deposited. Besides the use of infrared emitters for preheating the lower melting polymer, a CO2 laser distributes the necessary preheating temperature of the higher melting polymer. In the last step, a thulium fibre laser distributes the energy necessary for melting the two preheated powders simultaneously. In order to analyze the temperature gradients of the process on the powder surface and in deeper layers, a high-resolution thermal imaging system and thermocouples are used.

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Metadaten
Author:Tobias LaumerORCiDGND, Thomas Stichel, Philipp AmendGND, Stephan Roth, Michael Schmidt
DOI:https://doi.org/10.1016/j.phpro.2014.08.159
Parent Title (English):Physics Procedia
Publisher:Elsevier
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2014
Release Date:2022/11/25
Tag:Additive manufacturing; Multi-Material Parts; Process Qualification; Simultaneous Laser Beam Melting
Volume:56
First Page:167
Last Page:175
Konferenzangabe:International Conference on Photonic Technologies LANE, 8, 2014, Fürth
Institutes:Fakultät Maschinenbau
Fakultät Maschinenbau / Labor Additive and Intelligent Manufacturing for Sustainability (AIMS)
Begutachtungsstatus:peer-reviewed
Publication:Externe Publikationen
research focus:Produktion und Systeme
Licence (German):Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 3.0 International