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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Herzog, Dirk
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Optimization of large-scale aeroengine parts produced by additive manufacturing
- 2023Numerical and experimental investigation of the geometry dependent layer-wise evolution of temperature during laser powder bed fusion of Ti–6Al–4V
- 2023Development of a Hydrogen Metal Hydride Storage Produced by Additive Manufacturing
- 2023Predictive modeling of lattice structure design for 316L stainless steel using machine learning in the L-PBF process
- 2023Poster: Development of a Hydrogen Metal Hydride Storage Produced by Additive Manufacturing
- 2022Thermal conductivity of Ti-6Al-4V in laser powder bed fusion
- 2022Design Guidelines For Green Parts Manufactured With Stainless Steel In The Filament Based Material Extrusion Process For Metals (MEX/M)
- 2021Material modeling of Ti–6Al–4V alloy processed by laser powder bed fusion for application in macro-scale process simulation
- 2020Productivity optimization of laser powder bed fusion by hot isostatic pressing
- 2017Characterization of the anisotropic properties for laser metal deposited Ti-6Al-4 V
- 2017Process monitoring of laser remote cutting of carbon fiber reinforced plastics by means of reflecting laser radiationcitations
- 2016Laser cutting of carbon fibre reinforced plastics of high thicknesscitations
- 2016Analysis of residual stress formation in additive manufacturing of Ti-6Al-4V
- 2016Additive manufacturing of metalscitations
- 2015Investigations on the process strategy of laser remote cutting of carbon fiber reinforced plastics with a thickness of more than 5 MM
- 2015Fatigue Performance of Laser Additive Manufactured Ti–6al–4V in Very High Cycle Fatigue Regime up to 1E9 Cycles
- 2015Fatigue Performance of Laser Additive Manufactured Ti–6al–4V in Very High Cycle Fatigue Regime up to 1E9 Cycles
- 2014Low coherence interferometry in selective laser melting
- 2011Surface texturing by laser cladding
- 2008Laser welding of heat treatable steel during induction hardening
- 2008Inductively supported laser beam welding of high and ultra high strength steel grades
- 2008Laser welding of shape memory alloys for medical applications
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article
Numerical and experimental investigation of the geometry dependent layer-wise evolution of temperature during laser powder bed fusion of Ti–6Al–4V
Abstract
Laser powder bed fusion (L-PBF) is currently the additive manufacturing process with the widest industrial use for metal parts. Yet some hurdles persist on the way to a widespread industrial serial production, with reproducibility of the process and the resulting part properties being a major concern. As the geometry changes, so do the local boundary conditions for heat dissipation. Consequently, the use of global, geometry-independent processing parameters, which are today’s state of the art, may result in varying part properties or even defects. This paper presents a numerical simulation as a method to predict the geometry-dependent temperature evolution during the build. For demonstration, an overhang structure with varying angles towards the build platform was manufactured using Ti–6Al–4V. A calibrated infrared camera was integrated into a commercial L-PBF system to measure the temperature evolution over time for a total build height of 10 mm, and the results are used for validation of the simulation. It is shown that the simulation is capable of predicting the temperature between layers. The deviations between simulation and measurement remain in single digit range for smaller overhang structures (90°, 60° and 45°). For large overhang structures (30°), the simulation tends to over-predict the temperatures up to 15 °C. Experiments with varying process parameters showed the feasibility of energy reduction as compensation of the heat accumulation produced by overhang structures.