| People | Locations | Statistics |
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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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Mohanty, Sankhya
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Quantifying Intra-Tow Fiber Volume Fraction in GFRP::A Comparison of 3D Non-Destructive X-ray Computed Tomography and Destructive Optical Microscopy
- 2023Holistic computational design within additive manufacturing through topology optimization combined with multiphysics multi-scale materials and process modellingcitations
- 2022Increasing the productivity of selective laser sintering workflow by integrating cooling channels in the printing powder matrixcitations
- 2021Towards a digital twin of laser powder bed fusion with a focus on gas flow variablescitations
- 2020Resolving the effects of local convective heat transfer via adjustment of thermo-physical properties in pure heat conduction simulation of Laser Powder Bed Fusion (L-PBF)citations
- 2020Numerical investigation into the effect of different parameters on the geometrical precision in the laser-based powder bed fusion process Chaincitations
- 2020Numerical investigation into the effect of different parameters on the geometrical precision in the laser-based powder bed fusion process Chaincitations
- 2020Multi-metal additive manufacturing process chain for optical quality mold generationcitations
- 2020Laser polishing of additively manufactured Ti-6Al-4V: Microstructure evolution and material propertiescitations
- 2020Realistic design of laser powder bed fusion channelscitations
- 2020Microstructural modelling of above β-transus heat treatment of additively manufactured Ti-6Al-4V using cellular automatacitations
- 2020X-ray CT and image analysis methodology for local roughness characterization in cooling channels made by metal additive manufacturingcitations
- 2019Roughness Investigation of SLM Manufactured Conformal Cooling Channels Using X-ray Computed Tomography
- 2019Roughness Investigation of SLM Manufactured Conformal Cooling Channels Using X-ray Computed Tomography
- 2019Multi-material additive manufacturing of steels using laser powder bed fusion
- 2019A systematic investigation of the effects of process parameters on heat and fluid flow and metallurgical conditions during laser-based powder bed fusion of Ti6Al4V alloycitations
- 2019Build orientation effects on the roughness of SLM channels
- 2018Multiphysics modelling of manufacturing processes: A reviewcitations
- 2018Multiphysics modelling of manufacturing processes: A reviewcitations
- 2018Thermo-fluid-metallurgical modelling of laser-based powder bed fusion process
- 2018Modelling of the microstructural evolution of Ti6Al4V parts produced by selective laser melting during heat treatment
- 2018Thermo-fluid-metallurgical modelling of the selective laser melting process chaincitations
- 2018Numerical modelling and parametric study of grain morphology and resultant mechanical properties from selective laser melting process of Ti6Al4V
- 2018Defects investigation in additively manufactured steel products for injection moulding
- 2017Multi-objective optimization of cellular scanning strategy in selective laser meltingcitations
- 2017Laser additive manufacturing of multimaterial tool inserts: a simulation-based optimization studycitations
- 2016Improving accuracy of overhanging structures for selective laser melting through reliability characterization of single track formation on thick powder bedscitations
- 2016Reducing residual stresses and deformations in selective laser melting through multi-level multi-scale optimization of cellular scanning strategycitations
- 2015Cellular scanning strategy for selective laser melting: Generating reliable, optimized scanning paths and processing parameterscitations
- 2014Numerical Model based Reliability Estimation of Selective Laser Melting Processcitations
- 2013A finite volume alternate direction implicit approach to modeling selective laser melting
Places of action
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document
Improving accuracy of overhanging structures for selective laser melting through reliability characterization of single track formation on thick powder beds
Abstract
Repeatability and reproducibility of parts produced by selective laser melting is a standing issue, and coupled with a lack of standardized quality control presents a major hindrance towards maturing of selective laser melting as an industrial scale process. Consequently, numerical process modelling has been adopted towards improving the predictability of the outputs from the selective laser melting process. Establishing the reliability of the process, however, is still a challenge, especially in components having overhanging structures.In this paper, a systematic approach towards establishing reliability of overhanging structure production by selective laser melting has been adopted. A calibrated, fast, multiscale thermal model is used to simulate the single track formation on a thick powder bed. Single tracks are manufactured on a thick powder bed using same processing parameters, but at different locations in a powder bed and in different laser scanning directions. The difference in melt track widths and depths captures the effect of changes in incident beam power distribution due to location and processing direction. The experimental results are used in combination with numerical model, and subjected to uncertainty and reliability analysis. Cumulative probability distribution functions obtained for melt track widths and depths are found to be coherent with observed experimental values. The technique is subsequently extended for reliability characterization of single layers produced on a thick powder bed without support structures, by determining cumulative probability distribution functions for average layer thickness, sample density and thermal homogeneity.