Correlation Analysis of Different Building Parameters on the Part Properties of Parts Built by Simultaneous Laser Beam Melting of Polymers
- Simultaneous Laser Beam Melting of polymers (SLBM) allows the generation of multi-material components,consisting of different thermoplastic polymers, within one additive building process. Besides the common advantagesof conventional Laser Beam Melting (LBM), multi-material components built by SLBM can fulfill different productrequirements like different chemical resistances or haptic material properties within a single part. To achieve suchparts, different powder materials are deposited next to each other and preheated a few degrees below their meltingtemperatures by infrared emitters and laser radiation (λ = 10.60 μm), before in the last step the preheated powdersare molten simultaneously by an additional laser source (λ = 1.94 μm). In this paper, different polymer powders likepolypropylene (PP) and polyamide 12 (PA12) are used for the generation of multi-material specimens. By varyingdifferent building parameters according to a specified design of experiments, their influence on the part properties isanalyzed. Important building parameters are the intensity and the irradiation time of the laser beam used for meltingthe preheated powders. Besides using tensile tests to determine the tensile strength and the elongation at break, theaverage part height in dependence of the energy input is analyzed. The overall aim is to specify the correlationbetween different building parameters regarding the energy deposition on the resulting part properties.
Author: | Tobias LaumerORCiDGND, Michael Schmidt, Thomas Stichel |
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URL / DOI: | https://www.researchgate.net/publication/298791419_Correlation_Analysis_of_Different_Building_Parameters_on_the_Part_Properties_of_Parts_Built_by_Simultaneous_Laser_Beam_Melting_of_Polymers |
Parent Title (English): | Fraunhofer Direct Digital Manufacturing Conference DDMC 2016 : Conference Proceedings, March 2016, Berlin |
Publisher: | Fraunhofer Verlag |
Document Type: | conference proceeding (article) |
Language: | English |
Year of first Publication: | 2016 |
Release Date: | 2022/11/25 |
Institutes: | Fakultät Maschinenbau |
Fakultät Maschinenbau / Labor Additive and Intelligent Manufacturing for Sustainability (AIMS) | |
Publication: | Externe Publikationen |
research focus: | Produktion und Systeme |
Licence (German): | Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG |