| 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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Mathieu, Alexandre
Laboratoire de Mécanique et Procédés de Fabrication
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Numerical Study of the Cold Metal Transfer (CMT) Welding of Thin Austenitic Steel Plates with an Equivalent Heat Source Approachcitations
- 2024Dissimilar welding between Cu–6Al–2Ni alloy and stainless steel 316L using continuous ytterbium YAG lasercitations
- 2023Atomization regime observation and characterization of an atomized pure zinc rod during centrifugal atomization using a LASER beamcitations
- 2021Effects of the powder, laser parameters and surface conditions on the molten pool formation in the selective laser melting of IN718citations
- 2020Microstructure and mechanical properties of dissimilar Ti/Nb/Cu/steel laser jointscitations
- 2019Mechanical properties and microstructural study of homogeneous and heterogeneous laser welds in α, β,and α + β titanium alloyscitations
- 2019Solidification microstructure during selective laser melting of Ni based superalloy: experiment and mesoscopic modellingcitations
- 2016A combined three-dimensional digitisation and subsurface defect detection data using active infrared thermography
- 2016Weld pool surface temperature measurement from polarization state of thermal emissioncitations
- 2015Non Destructive Testing based on a Scanning-From-Heating approach: Application to non-through defect detection and fiber orientation assessmentcitations
- 2007Dissimilar material joining using laser (aluminum to steel using zinc-based filler wire)citations
- 2006Laser brazing of a steel/aluminium assembly with hot filler wire (88% Al, 12% Si)citations
- 2006Laser brazing of a steel/aluminium assembly with hot filler wire (88% Al, 12% Si)citations
Places of action
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article
Effects of the powder, laser parameters and surface conditions on the molten pool formation in the selective laser melting of IN718
Abstract
International audience ; A series of single-track selective laser melting (SLM) experiments was carried out on IN718 plates with and without a powder layer and with different laser processing parameters (power and scan velocity) and surface conditions (original surface and sand blasted surface). The impacts of the powder, laser parameters, and surface conditions on the molten pool (MP) formation in SLM were systematically investigated through characterizations of the geometry of the resolidified MP, including width, depth, and area. Clear-cut correlations between the dimensions of the MP and the parameters were deduced from the measured data, such as between width/depth of the MP and the power of the laser beam, or between the area of the MP and the laser energy density. We also show that without a powder layer, an increased roughness of the surface consistently increases the MP cross-section area, whereas it has no impact for the cases with powder layer. Finally, the occurrence of defects, such as insufficient melting, unstable MP, and porosities/keyhole effect, is investigated and linked to the SLM parameters. We propose a processing map that defines the range of laser velocity and power for a defect-free solidification of the MP and the occurrence of the different types of defects.