| 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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conferencepaper
Build orientation effects on the roughness of SLM channels
Abstract
Increasingly advanced shapes and geometries are being manufactured using additive manufacturing and new characterization techniques must emerge in order to fully utilize the new possibilities given by freeform design. Cooling channels produced by the laser powder bed fusion process has been shown to have high roughness at overhanging areas due to powder particles being fused with the internal surface. Classic techniques for characterizing profile roughness are falling short with respect to internal surfaces in freeform geometries. Hence, this work presents a methodology for characterizing internal surface roughness by extracting roughness profiles through the use of image analysis and X-ray CT. In order to fully describe the internal surface roughness, two orientations were defined, namely the global and local orientations α and β. The internal profile roughness was evaluated in accordance with ISO 4287:1997. Seven selective laser melting manufactured straight channels made in 17-4 PH stainless steel were CT scanned and analyzed with the proposed methodology. Results showed that the Ra-values inside the channel were dependent on both α and β. The average Ra-values and their standard deviations were found to be decreasing rapidly with increasing α. The highest average roughness was found for α = 0°, where an average Ra-value of 70.7 μm was found. The lowest average roughness was found at α = 90°, where an average Ra-value of 6.7 μm was found. Furthermore, it was found that the surface texture and roughness changed dependent on the location along the length of the channel produced at α = 0°. These findings suggest the importance of characterizing the internal surface roughness of cooling channels with respect to both the global build orientation of a channel, the local orientation within a channel and the specific location along the length of a channel.