| 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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De Jesus, Abílio M. P.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023A Predictive Methodology for Temperature, Heat Generation and Transfer in Gigacycle Fatigue Testingcitations
- 2023Experimental parametric investigation on the behavior of adhesively bonded CFRP/steel jointscitations
- 2022Fatigue crack growth modelling by means of the strain energy density-based Huffman model considering the residual stress effectcitations
- 2022Fracture Characterization of Hybrid Bonded Joints (CFRP/Steel) for Pure Mode Icitations
- 2022Automation of Property Acquisition of Single Track Depositions Manufactured through Direct Energy Depositioncitations
- 2022A review of fatigue damage assessment in offshore wind turbine support structurecitations
- 2022Tensile Properties of As-Built 18Ni300 Maraging Steel Produced by DEDcitations
- 2021Probabilistic S-N curves for CFRP retrofitted steel detailscitations
- 2021Low-cycle fatigue modelling supported by strain energy density-based Huffman model considering the variability of dislocation densitycitations
- 2020Multiaxial fatigue assessment of S355 steel in the high-cycle region by using Susmel's criterioncitations
- 2020Study of the Fatigue Crack Growth in Long-Term Operated Mild Steel under Mixed-Mode (I plus II, I plus III) Loading Conditionscitations
- 2018Energy response of S355 and 41Cr4 steel during fatigue crack growth processcitations
Places of action
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article
Automation of Property Acquisition of Single Track Depositions Manufactured through Direct Energy Deposition
Abstract
Metallic additive manufacturing processes have been significantly developed since their inception with modern systems capable of manufacturing components for structural applications. However, successful processing through these methods requires extensive experimentation before optimised parameters can be found. In laser-based processes, such as direct energy deposition, it is common for single track beads to be deposited and subjected to analysis, yielding information on how the input parameters influence characteristics such as the output's adhesion to the substrate. These characteristics are often determined using specialised software, from images obtained by cross-section cutting the line beads. The proposed approach was based on a Python algorithm, using the scikit-image library and optical microscopy imaging from produced 18Ni300 Maraging steel on H13 tool steel, and it computes the relevant properties of DED-produced line beads, such as the track height, width, penetration, wettability angles, cross-section areas above and below the substrate and dilution proportion. 18Ni300 Maraging steel depositions were optimised with a laser power of 1550 <mml:semantics>W</mml:semantics>, feeding rate of 12 <mml:semantics>g</mml:semantics> <mml:semantics>min-1</mml:semantics>, scanning speed of 12 <mml:semantics>mm s-1</mml:semantics>, shielding gas flow rate of 25 <mml:semantics>L</mml:semantics> <mml:semantics>min-1</mml:semantics> and carrier gas flow rate of 4 <mml:semantics>L</mml:semantics> <mml:semantics>min-1</mml:semantics> for a laser spot diameter of <mml:semantics>2.1mm</mml:semantics>. Out of the cross-sectioned beads, their respective height, width and penetration were calculated with <mml:semantics>2.71%</mml:semantics>, <mml:semantics>4.01%</mml:semantics> and <mml:semantics>9.35%</mml:semantics> errors; the dilution proportion was computed with <mml:semantics>14.15%</mml:semantics> error, the area above the substrate with <mml:semantics>5.27%</mml:semantics> error and the area below the substrate with <mml:semantics>17.93%</mml:semantics> error. The average computational time for the processing of one image was <mml:semantics>12.7</mml:semantics> <mml:semantics>s</mml:semantics>. The developed approach was purely segmentational and could potentially benefit from machine-learning implementations.