Sylvain Lavernhe
113
Documents
Researcher identifiers
sylvain-lavernhe
-
0000-0002-6701-4648
- Google Scholar : https://scholar.google.fr/citations?user=hK09IEcAAAAJ&hl=fr
- IdRef : 160469007
Presentation
Professeur à l'Université Paris-Saclay
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- Enseignement au [département GMP](http://www.iut-cachan.u-psud.fr/fr/departements-1/departement_gmp.html) de l'[IUT de Cachan](http://www.iut-cachan.u-psud.fr/fr/index.html)
- Recherche au [LURPA](http://lurpa.ens-paris-saclay.fr) à l'[ENS Paris-Saclay](http://ens-paris-saclay.fr)
### Thématiques de recherche
#### Fabrication additive
- calcul de trajectoires en procédés DED (Directed Energy Deposition) : procédés laser poudre (LPBF) et fil (WAAM arc-fil - WLAM laser-fil)
- prédiction du comportement de la structure de machines SLM et robots en WXAM
- simulation de l'exécution des trajectoires de lasage avec prise en compte de la thermique, température
- simulation géométrique du cordon, de la couche, de l'empilement pour prédire la forme de la pièce
- jumeau numérique en fabrication additive
#### Optimisation du processus d'usinage
- génération de trajectoire 5 axes multi-axes
- développement d'un interpolateur CN de trajectoires multi-axes intégrant les limitations en jerk
- développement d'une commande adaptative pour suivre les trajectoires en minimisant l'erreur de contour et évitant les vibrations
#### Simulation des surfaces fabriquées
- stratégies de calcul sur GPU
- simulation des topographies de surface avec intégration des cinématique et géométrie réaliste sde l'outil de coupe ou d'abrasion
#### Modélisation de la géométrie machine avec défauts
- comportement dynamique de la structure lors de l'exécution des trajectoires à grande vitesse
- identification, prédiction de l'écart volumétrique
Full Professor at Université Paris-Saclay
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- Teaching at the [mechanical and production department (GMP)](http://www.iut-cachan.u-psud.fr/fr/departements-1/departement_gmp.html) of the [IUT de Cachan](http://www.iut-cachan.u-psud.fr/fr/index.html)
- Research at [LURPA](http://lurpa.ens-paris-saclay.fr/en) at [ENS Paris-Saclay](http://ens-paris-saclay.fr/en)
### Research topics
#### Additive manufacturing
- calculation of trajectories in DED (Directed Energy Deposition) processes: laser powder bed fusion (LPBF) and wire processes (WAAM arc-wire - WLAM laser-wire)
- prediction of the behavior of the structure of SLM machines and robots in WXAM
- simulation of the execution of laser trajectories with consideration of thermal, temperature
- geometrical simulation of bead, layer, stack to predict part shape
- digital twin in additive manufacturing
#### Optimization of the machining process
- 5-axis multi-axis trajectory generation
- development of an NC interpolator for multi-axis trajectories integrating jerk limitations
- development of an adaptive control to follow the trajectories while minimizing the contour error and avoiding vibrations
#### Simulation of manufactured surfaces
- computational strategies on GPU
- simulation of surface topography with integration of kinematics and realistic cutting or abrasion tool geometry
#### Modeling of the machine geometry with defects
- dynamic behavior of the structure during the execution of high speed trajectories
- identification, prediction of the volumetric deviation
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Analyse de l'influence des paramètres de la recette de fabrication sur la trajectoire réelle du laser en LPBFManufacturing'21, UGA, Grenoble INP, CNRS, Jun 2024, GRENOBLE, France
Conference papers
hal-04784353v1
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Définition d'entités dans le cadre de la Fabrication Additive DED : état de l'art et propositionManufacturing'21, UGA, Grenoble INP, CNRS, Jun 2024, GRENOBLE, France
Conference papers
hal-04784358v1
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Influence of head orientation on bead geometry and penetration in wire laser additive manufacturing with coaxial technologyeuspen’s 23rd International Conference & Exhibition, Jun 2023, Copenhagen, Denmark
Conference papers
hal-04136955v1
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Nouvelle méthodologie in situ pour la caractérisation des erreurs géométriques d'axe de rotation sur une machine-outil multi-axesS-MART 2023 : 18ème Colloque national S.mart, Arts et Métiers Paristech ENSAM Aix-en-Provence, Université de Toulon [UTLN], Apr 2023, Carry-le-Rouet, France
Conference papers
hal-04397913v1
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Stratégies de pilotage à grande vitesse en fusion laser sur lit de poudre dans le cadre du projet SOFIAS-MART 2023 : 18ème Colloque national S.mart, Arts et Métiers Paristech ENSAM Aix-en-Provence, Université de Toulon [UTLN], Apr 2023, Carry-le-Rouet, France
Conference papers
hal-04397919v1
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Approche phénoménologique du contrôle de la géométrie de cordons en WAAM18ème colloque national Smart, GIS S.mart, Apr 2023, Carry-le-Rouet, France
Conference papers
hal-04131351v1
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Influence of process parameters and head orientation on bead geometry for coaxial wire laser additive manufacturingMaterial Forming - ESAFORM, Apr 2023, Kraków, Poland. pp.119-127, ⟨10.21741/9781644902479-14⟩
Conference papers
hal-04136947v1
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Simulation thermique par méthode Flash en fabrication additive LPBF pour l'amélioration du procédé et des pièces15ème colloque national en calcul des structures, Université Polytechnique Hauts-de-France [UPHF], May 2022, 83400 Hyères-les-Palmiers, France
Conference papers
hal-03717711v1
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Influence du comportement de la Commande Numérique sur la trajectoire du spot laser en fusion laser sur lit de poudreConference Manufacturing21, Ecole Normale Supérieure Paris-Saclay [ENS Paris Saclay], Oct 2022, Gif Sur Yvette, France
Conference papers
hal-04011651v1
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Lissage et rééchantillonnage de trajectoires curvilinéaires par splines d'HermiteConference Manufacturing21, Ecole Normale Supérieure Paris-Saclay [ENS Paris Saclay], Oct 2022, Gif Sur Yvette, France
Conference papers
hal-04011749v1
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Influence des paramètres de fabrication et de l'orientation de la tête de dépôt sur les cordons produits par procédé laser-filConference Manufacturing21, Ecole Normale Supérieure Paris-Saclay [ENS Paris Saclay], Oct 2022, Gif Sur Yvette, France
Conference papers
hal-04011650v1
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Influence of the CNC behaviour on the laser spot trajectory in LPBF processJoint Special Interest Group meeting between euspen and ASPE Advancing Precision in Additive Manufacturing, Sep 2021, St Gallen, Switzerland
Conference papers
hal-03372979v1
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Modélisation des dimensions géométriques de cordon aux points de changement de direction en WAAMConférence Manufacturing’21, Jun 2021, Angers (en ligne), France
Conference papers
hal-03268258v1
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Modélisation de la répartition d’énergie en procédé de fabrication additive laser fil avec tête coaxialeConférence Manufacturing’21, Jun 2021, Angers (en ligne), France
Conference papers
hal-03268257v1
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Simulation thermique des trajectoires de lasage basée sur des flashs en fabrication additive LPBFConférence Manufacturing’21, Jun 2021, Angers (en distantiel.), France
Conference papers
hal-03268306v1
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Caractérisation Multi-Niveaux de l'Entité d'Usinage de Forme Complexe16eme Colloque National S-mart/AIP-PRIMECA, Apr 2019, Les Karellis – Vallée de la maurienne, France
Conference papers
hal-02092441v1
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FVPM simulation of scratching induced by a spherical indenterCMMO2019, 17th CIRP Conference on Modelling of Machining Operations, Jun 2019, Sheffield, United Kingdom. ⟨10.1016/j.procir.2019.04.149⟩
Conference papers
hal-02292426v1
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Opto-mechanical modeling and identification for calibration of LPBF machineEUSPEN Special Interest Group Meeting: Advancing Precision in Additive Manufacturing, Sep 2019, Nantes, France
Conference papers
hal-02308587v1
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A kinematic simulation software for additive manufacturing metal deposition processesICWAM'19, International Congress On Welding, Additive Manufacturing And Associated Non Destructive Testing, Jun 2019, Metz, France
Conference papers
hal-02151268v1
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Influence of the opto-mechanical chain on the energy provided by the laser spot to the material in laser powder bed fusion processesEUSPEN Special Interest Group Meeting: Advancing Precision in Additive Manufacturing, Sep 2019, Nantes, France
Conference papers
hal-02308576v1
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Performance simulation of different toolpaths in 2D1/2 pocket millingPROCEEDINGS OF THE 22ND INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING: ESAFORM 2019, May 2019, Vitoria-Gasteiz, Spain. pp.080001, ⟨10.1063/1.5112609⟩
Conference papers
hal-02571164v1
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Thermal simulation of scanning paths in LBM additive manufacturingSecond International Conference on Simulation for Additive Manufacturing, Sim-AM 2019, 2019, Pavia, Italy
Conference papers
hal-02422198v1
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FVPM simulation of a single-particle scratching surface14th internation conference on High Speed Machining 2018 - HSM 2018, Apr 2018, San-Sebastian, Spain
Conference papers
hal-01773105v1
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Modélisation implicite du procédé d'abrasionJournées du Groupe de Travail en Modélisation Géométrique, 2018, Aix-en-Provence, France
Conference papers
hal-02292469v1
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Simulation FVPM de rayage mono-grainMachines et Usinage à Grande Vitesse, Jun 2018, Bordeaux, France
Conference papers
hal-02292985v1
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Part surface roughness on laser sintering and milling of maraging steel 30014th Internation Conference on High Speed Manufacturing, Apr 2018, San-Sebastian, Spain
Conference papers
hal-01773243v1
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Modélisation d'une chaine opto-mécanique de fabrication additive avec prise en compte des défauts d'assemblageMachines et Usinage à Grande Vitesse, Jun 2018, Bordeaux, France
Conference papers
hal-02292487v1
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Freeform Machining Feature Recognition with Manufacturability AnalysisCIRP CMS'18. 51st CIRP Conference on Manufacturing Systems, May 2018, Stockholm Sweden. ⟨10.1016/j.procir.2018.03.261⟩
Conference papers
hal-01780392v1
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Multi-level Freeform Machining Feature CharacterizationCAD'18. Computer-Aided Design and Applications Conference, Jul 2018, Paris, France
Conference papers
hal-01780415v1
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Opto-mechanical modelling of an additive manufacturing laser scanning head including assembly defectsJoint Special Interest Group meeting between EUSPEN and ASPE : Dimensional Accuracy and Surface Finish in Additive Manufacturing, Oct 2017, Leuven, Belgium
Conference papers
hal-02309742v1
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Path planning of a laser-scanner with the control of overlap for 3d part inspection11th CIRP Conference on Intelligent Computation in Manufacturing Engineering, CIRP ICME’17 , 2017, Naples, France
Conference papers
hal-01654044v2
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Modélisation et caractérisation des défauts de structure de machine-outil 5-axes pour la mesure in-process23ème Congrès Français de Mécanique, Aug 2017, Lille, France
Conference papers
hal-01705258v1
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Choix de l'orientation outil en usinage 5 axes positionnés à partir de polytopes de jerk15ème colloque national AIP-Priméca, Apr 2017, La Plagne, France
Conference papers
hal-04482598v1
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Inter-comparison on multi-feature bar calibration for determining machine-tool geometric errorsLamdamap 12th International Conference & Exhibition, Mar 2017, Renishaw Innovation Centre (UK), United Kingdom
Conference papers
hal-02292388v1
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Freeform Machining Features: New Concepts and ClassificationCIRP ICME'17. 11th CIRP Conference on Intelligent Computation in Manufacturing Engineering, Jul 2017, Gulf of Naples, Italy. ⟨10.1016/j.procir.2017.12.248⟩
Conference papers
hal-01620490v1
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Utilisation des polytopes de manipulabilité cinématique pour la génération de trajectoires 5 axes en UGV9èmes assises Machines et Usinage à Grande Vitesse, Jun 2016, Tours, France
Conference papers
hal-04482589v1
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Determination of volumetric machine tool errors by using a hole-bar material standardTIM Final Workshop, PTB, Braunschweig, Germany, May 2016, Braunschweig, Germany
Conference papers
hal-01359425v1
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Reduction of a five axis machine tool kinematic model by combinational analysis to improve volumetric accuracyTIM Final Workshop, PTB, Braunschweig, Germany, May 2016, Braunschweig, Germany
Conference papers
hal-01359427v1
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Receding Horizon Based Offline Gain Adjustment for Contour Error Reduction in High Speed MillingCIRP ICME '16 - 10th CIRP Conference on Intelligent Computation In Manufacturing Engineering, 2016, Ischia, Italy. pp.227-232, ⟨10.1016/j.procir.2016.06.040⟩
Conference papers
hal-02120164v2
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Novel Hole-Bar Standard Design and Inter-Comparison for Geometric Errors Identification on Machine-ToolInternational Journal of Industrial and Manufacturing Engineering, World Academy of Science, Engineering and Technology, Jan 2016, Dubai, United Arab Emirates
Conference papers
hal-01313669v1
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Offline Gain Adjustment with Constraints for Contour Error Reduction in High Speed MillingIEEE International Conference on Advanced Intelligent Mechatronics (AIM 2016), Jul 2016, Banff, Canada. ⟨10.1109/aim.2016.7576767⟩
Conference papers
hal-01365977v1
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Mold Manufacturing Optimization: A Global Approach of Milling and Polishing Processes15th CIRP Conference On Modelling Of Machining Operations, Jun 2015, Karlsruhe, Germany. pp.13-18, ⟨10.1016/j.procir.2015.03.035⟩
Conference papers
hal-01161695v1
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Optimisation de la fabrication de moule : Une approche globale des procédés de fraisage et de polissage14eme coloque national AIP Primeca, Mar 2015, La Plagne, France
Conference papers
hal-01122502v2
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Kinematical smoothing of rotary axis near singularity point12th International conference on High Speed Machining, Oct 2015, Nanjing, China. pp.501-508
Conference papers
hal-01223135v1
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Modélisation géométrique des machines-outils 5 axes pour la compensation de l'exactitude volumétrique14eme coloque national AIP Primeca, Mar 2015, La Plagne, France
Conference papers
hal-01122509v1
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Reduction of a RRTTT machine tool geometric model by combinatorial analysis to improve volumetric accuracyLaser Metrology and Machine Performance (LAMDAMAP) 2015, Mar 2015, Huddersfield, United Kingdom
Conference papers
hal-01122531v1
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Feedrate optimization in 5-axis machining based on direct trajectory interpolation on the surface using an open cnc11th International Conference on High Speed Machining, Sep 2014, Prague, Czech Republic. paper n. 14042, 6 p
Conference papers
hal-01064136v1
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Identification of the geometric errors of a Mikron 5-axis machine-tool using the hole-bar 3D standard and the laser tracer interferometer systemTraceable In-process dimensional Measurement for machine tools (TIM) Workshop, NPL, Nov 2014, Teddington, United Kingdom
Conference papers
hal-01081466v1
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Influence de la voxelisation sur la génération de trajectoires 5 axes sans collision par champs répulsifsMachines et Usinage à Grande Vitesse 2014, Oct 2014, Clermont-Ferrand, France
Conference papers
hal-01096698v1
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Amélioration de la qualité des pièces usinées par interpolation directe du trajet sur surfaceMachines et Usinage à Grande Vitesse 2014, Oct 2014, Clermont-Ferrand, France
Conference papers
hal-01096699v1
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Conversion of G-code programs for milling into STEP-NCJoint Conference on Mechanical, Design Engineering & Advanced Manufacturing, Jun 2014, Toulouse, France
Conference papers
hal-01096093v1
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Parameters set-up for collision avoidance and smooth motion in 5-axis end milling based on a potential field approach11th International Conference on High Speed Machining, Sep 2014, Prague, Czech Republic. paper n. 14041, 6 p
Conference papers
hal-01064128v1
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Axis control using model predictive control: identification and friction effect reduction3rd International Conference on Virtual Machining Process Technology, May 2014, Calgary, Canada. 8p
Conference papers
hal-01023265v1
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Geometric errors identification on 5-axis machine-tool using both novel hole-bar standard design and laser tracer interferometer systemMacroScale : Recent Developments In Traceable Dimensional Measurements, Oct 2014, Wien, Austria
Conference papers
hal-01079558v1
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Performance Evaluation of CUDA programming for machining simulationInternational Conference on Graphics Engineering, Jun 2013, Madrid, Spain
Conference papers
hal-00869774v1
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Tool path definitions and their interpolation for optimized 5-axis High-Speed MachiningInternational Workshop on Mathematics and Algorithms forComputer-Aided Manufacturing, Engineering and Numerical Control, Oct 2013, Beijing, China
Conference papers
hal-01023269v1
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Correction of trajectory execution errors in hsm using a miror approachEight International Conference on High Speed Machining (HSM), Dec 2012, Metz, France. 6 p
Conference papers
hal-00999577v1
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CAD-based Calibration of a 3D DIC SystemSEM XII International Congress & Exposition on Experimental and Applied Mechanics, Jun 2012, United States
Conference papers
hal-00727879v1
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Maximum Feedrate Interpolator for Multi-axis CNC Machining with Jerk Constraints9th International Conference on High Speed Machining, Mar 2012, San Sebastian, Spain
Conference papers
hal-00986174v1
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Modélisation thermomécanique hybride en perçage pour la simulation du champ de temperature dans l'outil7èmes assises Machines et Usinage à Grande Vitesse MUGV 2012 - Intercut 2012, Oct 2012, Saint-Etienne, France. 10p
Conference papers
hal-00999323v1
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Kinematical analysis of 5-axis corner smoothing for transitions between linear (G1) blocksMachines et Usinages à Grande Vitesse 2012, Oct 2012, Saint Etienne, France
Conference papers
hal-00986166v1
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Modélisation et évaluation du comportement dynamique d'une structure de machine outil UGV pour la prédiction des défauts géométriques20ème Congrès Français de Mécanique, Aug 2011, Besançon, France. CDROM paper n°714
Conference papers
hal-00637859v1
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Experimental evaluation of errors during five axis High-Speed Machine tool motion23rd Canadian Congress of Applied Mechanics, Jun 2011, Vancouver, Canada. 4 p
Conference papers
hal-00999568v1
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Feed drive simulation for the prediction of the tool path follow up in High Speed Machinning20th CIRP International Conference on Supervising and Diagnostics of Machining Systems, High Performance Manufacturing, Mar 2009, Karpacz, Poland. 12p
Conference papers
hal-00999710v1
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Modélisation d'axe de machine outil pour la simulation du suivi de trajectoires en UGV11ème colloque National AIP PRIMECA La Plagne, Apr 2009, La Plagne, France. 13p
Conference papers
hal-00999712v1
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Characterization of 3D surface topography in 5 axis milling12 th International Conference on Metrology and Properties of Engineering Surfaces, Rzeszow 8-10 juillet 2009, Jul 2009, Rzeszow, Poland. 5p
Conference papers
hal-00999713v1
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NC-simulation for the prediction of surface finish in 5-axis High-Speed Machining3rd CIRP International Conference on High Performance Cutting, Dublin(Ireland),, Jun 2008, Dublin, Ireland. pp.387 - 396
Conference papers
hal-00999715v1
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Integration de contraintes cinématiques pour le calcul de l'orientation optimisée de l'axe de l'outil en usinage à 5 axes4èmes assises MUGV, Jun 2006, Aix en Provence, France. 11p
Conference papers
hal-00999716v1
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Kinematical performances in 5-axis machiningIDMME, May 2006, Grenoble, France. 12p
Conference papers
hal-00999718v1
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Identification de la géométrie de machines CN par mesure d'artefacts1er Congrès International Francophone de Mécanique Avancée, Faculté de Génie Mécanique, Université d’Alep, Syrie, May 2006, Alep, Syrie
Conference papers
hal-01101528v1
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Tool path generation and post-processor issues in five-axis high speed machining of hydro turbine bladesFifth International Conference on High Speed Machining, Mar 2006, Metz, France
Conference papers
hal-00577235v1
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Model for performance prediction in multi-axis machiningCIRP 2nd International Conference High Performance Cutting, Jun 2006, Vancouver, Canada. 9p
Conference papers
hal-00999720v1
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Optimisation en fraisage 5 axes grande vitesse4th International conference on Integrated Design and Production, Nov 2005, Casablanca, Maroc
Conference papers
hal-01224463v1
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Description formats of tool trajectory suited to High-Speed MachiningInternational Conference on High Speed Machining, Mar 2004, Nanjing, China
Conference papers
hal-00577227v1
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Performance of off-line polynomial CNC trajectories within the context of HSM2004 International Mechanical Engineering Congress and Exposition, Nov 2004, Anaheim, United States
Conference papers
hal-00577232v1
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Fabrication additive par modulation de vitesse de balayageFrance, N° de brevet: WO2020157426. 2019, https://patentscope.wipo.int/search/fr/detail.jsf?docId=WO2020157426
Patents
hal-04017062v1
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Trajectoire adaptative pour fabrication additive utilisant une source laserFrance, N° de brevet: WO2021058913. 2019, https://patentscope.wipo.int/search/fr/detail.jsf?docId=WO2021058913
Patents
hal-04017069v1
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Fabrication additive par modulation de puissance laserFrance, N° de brevet: WO2020157427. 2019, https://patentscope.wipo.int/search/fr/detail.jsf?docId=WO2020157427
Patents
hal-04017066v1
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Prise en compte des contraintes associées au couple MO-CN en génération de trajectoires 5 axes UGVSciences de l'ingénieur [physics]. École normale supérieure de Cachan - ENS Cachan, 2006. Français. ⟨NNT : ⟩
Theses
tel-00362983v1
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Contributions au développement du processus de fabrication : amélioration des performances en usinage multiaxesGénie mécanique [physics.class-ph]. ENS Paris-Saclay, France, 2018
Accreditation to supervise research
tel-01973201v1
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