Auswahl der wissenschaftlichen Literatur zum Thema „Fabrication additive métallique DED“
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Zeitschriftenartikel zum Thema "Fabrication additive métallique DED"
Park, Seong-Hyun, Kiyoon Yi, Peipei Liu, Gwanghwo Choi, Kyung-Young Jhang und Hoon Sohn. „In situ and layer-by-layer grain size estimation in additively manufactured metal components using femtosecond laser ultrasonics“. Journal of Laser Applications 35, Nr. 2 (Mai 2023): 022002. http://dx.doi.org/10.2351/7.0000938.
Der volle Inhalt der QuelleChen, Lequn, Xiling Yao, Youxiang Chew, Fei Weng, Seung Ki Moon und Guijun Bi. „Data-Driven Adaptive Control for Laser-Based Additive Manufacturing with Automatic Controller Tuning“. Applied Sciences 10, Nr. 22 (10.11.2020): 7967. http://dx.doi.org/10.3390/app10227967.
Der volle Inhalt der QuelleMillon, Célia, Arnaud Vanhoye und Anne-Françoise Obaton. „Ultrasons laser pour la détection de défauts sur pièces de fabrication additive métallique“. Photoniques, Nr. 94 (November 2018): 34–37. http://dx.doi.org/10.1051/photon/20189434.
Der volle Inhalt der QuelleSaboori, Abdollah, Alberta Aversa, Giulio Marchese, Sara Biamino, Mariangela Lombardi und Paolo Fino. „Microstructure and Mechanical Properties of AISI 316L Produced by Directed Energy Deposition-Based Additive Manufacturing: A Review“. Applied Sciences 10, Nr. 9 (09.05.2020): 3310. http://dx.doi.org/10.3390/app10093310.
Der volle Inhalt der QuelleSidun, Muhammad Irfan Syahmi, und Ismayuzri Ishak. „Bead Characterization for Wire Based Laser Directed Energy Deposition Fabrication Process“. Jurnal Teknologi 13, Nr. 2 (30.12.2023): 58–64. http://dx.doi.org/10.35134/jitekin.v13i2.98.
Der volle Inhalt der QuelleJedlan, Štěpán, Martin Ševeček, Antonín Prantl, Josef Hodek, Pavel Podaný und Michal Brázda. „Effect of heat-treatment on material properties of L-DED printed austenistic alloy 08CH18N10T for nuclear reactor applications“. Acta Polytechnica CTU Proceedings 44 (01.12.2023): 1–4. http://dx.doi.org/10.14311/app.2023.44.0001.
Der volle Inhalt der QuelleOstolaza, Marta, Jon Iñaki Arrizubieta, Aitzol Lamikiz, Soraya Plaza und Naiara Ortega. „Latest Developments to Manufacture Metal Matrix Composites and Functionally Graded Materials through AM: A State-of-the-Art Review“. Materials 16, Nr. 4 (20.02.2023): 1746. http://dx.doi.org/10.3390/ma16041746.
Der volle Inhalt der QuelleSantaolaya, Javier, Jorge Sogorb, Ignacio González-Barba, Antonio Periñán und Fernando Lasagni. „Development and Optimization of Processing Parameters of 316L Stainless Steel and Inconel 718 by Wire Feed Direct Energy Deposition/Laser Beam (W-DED/LB)“. Key Engineering Materials 958 (05.10.2023): 21–29. http://dx.doi.org/10.4028/p-3mi1yv.
Der volle Inhalt der QuelleMüller, M., C. C. Labisch, L. Gerdt, L. Bach, M. Riede, J. Kaspar, E. López, F. Brueckner, M. Zimmermann und C. Leyens. „Multimaterial direct energy deposition: From three-dimensionally graded components to rapid alloy development for advanced materials“. Journal of Laser Applications 35, Nr. 1 (Februar 2023): 012006. http://dx.doi.org/10.2351/7.0000788.
Der volle Inhalt der QuelleAydogan, Beytullah, und Himanshu Sahasrabudhe. „Enabling Multi-Material Structures of Co-Based Superalloy Using Laser Directed Energy Deposition Additive Manufacturing“. Metals 11, Nr. 11 (27.10.2021): 1717. http://dx.doi.org/10.3390/met11111717.
Der volle Inhalt der QuelleDissertationen zum Thema "Fabrication additive métallique DED"
Doutre, Pierre-Thomas. „Comment intégrer et faire émerger des structures architecturées dans l'optimisation de pièces pour la fabrication additive par faisceaux d’électrons“. Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAI039.
Der volle Inhalt der QuelleThanks to additive manufacturing, it is now possible to manufacture new geometric shapes. The prospects offered by the methods of conventional and additive manufacturing are very different. Highly constrained design proposals can become much freer with additive manufacturing. The freedom it offers brings forward a multitude of possibilities. In this manuscript, we focused on a particular type of structures (the octetruss) as well as the use of EBM (Electron Beam Melting) of ARCAM as a means of manufacturing. The work presented in this thesis was carried out in the laboratories G-SCOP and SIMAP as well as in partnership with the company POLY-SHAPE. This manuscript focuses on three main points.The first of which is the action of emergence of lattice structures during the design process. For this, two existing approaches are detailed. The first uses topological optimization and the second is based on the concept of equivalent material. Following these, there are two methodologies used to identify areas in which the integration of lattice structures is possible and appropriate. The first consists of creating the different zones by relying on a stress field resulting from a finite element calculation, the second establishes the different zones using a topological optimization result. This second methodology is applied to an industrial case study.Secondly, we study how to fill the different areas with appropriate lattice structures by focusing first on their generation. Particular emphasis is placed on the intersection of the various bars by the establishment of spheres. A methodology for generating rounded-shape is also proposed. A study is carried out on all the parameters and information in order to integrate a lattice structure to a given area. This study leads to a proposed methodology that is applied to an industrial case study.Finally, aspects related to manufacturing are taken into account. For this, we consider different limits of the EBM manufacturing and what they mean for lattice structures; such as maximum achievable dimensions or thermal problems. A study to predict powder removal in order to extract the fabricated structure is performed. Mechanical tests are carried out. Our results are compared to those obtained in other works. The impact of curve on the mechanical behavior of a product is discussed
Agouzoul, Asmaâ. „Nouvelles méthodes numériques pour la simulation de l’impression 3D métallique“. Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0004.
Der volle Inhalt der QuelleSelective Laser Melting offers new perspectives in terms of part design and simplification of complex assemblies. However, severe thermo-mechanical conditions arise and are responsible for local plastic deformation, residual stresses and distortion of the manufactured component. Numerical simulation is an interesting tool for process understanding the physical phenomena and their impact on the quality of the part. In this thesis, we propose different approaches to perform simulations at a lower cost, by using model reduction algorithms. The results are compared with those obtained by the finite element method. A reverse analysis in order to identify the inherent strain responsible for the measured elastic springback makes possible to build offline numerical abacus. Therefore, we use a multi-parametric reduced order model using the so called Proper Generalised Decomposition (PGD) to construct this abacus. We also explore the benefits of an implementation of PGD on GPU
Carassus, Hugo. „Comportement dynamique des matériaux cellulaires issus de la fabrication additive pour l'allègement structural et la sécurité au crash et à l'impact“. Electronic Thesis or Diss., Valenciennes, Université Polytechnique Hauts-de-France, 2023. http://www.theses.fr/2023UPHF0003.
Der volle Inhalt der QuelleThe rise of additive manufacturing since the end of the 20th century has made it possible to consider the design of new architectural cellular materials combining lightness and high energy absorption capacity. Their use in the field of ground or air transport sectors is therefore of interest to contribute jointly to structural lightening and safety in the event of a crash and/or impact.The objectives of the research work are to investigate and model the mechanical behaviour, under uniaxial dynamic loadings, of this new category of cellular materials, the TPMS (Triply Period Minimal Surface) structures, for which the current state of the art is rather focused on quasi-static or cyclic loadings.The work presented in this thesis is organised in three parts. The first part aims to characterise the mechanical behaviour of the constitutive material, 316L steel chosen for its high ductility, produced by the SLM (Selective Laser Melting) process. The specificities induced by laser melting on a powder bed, such as anisotropy and strain rate sensitivity, are identified and modelised by material behaviour laws.The second part of this thesis focuses on the mechanical response of TPMS structures under quasi-static and dynamic solicitations. The mechanical responses of the structures show the characteristics of an ideal energy absorber with the absence of an initial peak, a long and slightly rising plateau phase, and a late densification. In addition, the deformation mechanisms are stable. Compared to other so-called conventional cellular materials, the energy absorption capacities of TPMS structures are superior with the advantage of being less sensitive to the direction of solicitation for uniaxial loading. In the dynamic regime, the observed increase in energy absorption capacities is linked to the sensitivity of the constitutive material.This experimental approach is coupled with a detailed numerical FE approach at the mesoscopic scale in order to better understand the local collapse mechanisms that measurement alone does not allow, especially under dynamic solicitations. The numerical model is capable of predicting the experimental mechanical response fairly accurately, based in particular on the material behaviour laws identified previously. Locally, the deformation is a combination of several mechanisms such as buckling, bending and shearing. Energy absorption diagrams and Gibson-Ashby laws are determined in order to relate the energy absorption capacities to the geometrical dimensions and thus to choose the most suitable configuration for the imposed specifications
Ratsimba, Alice. „Élaboration d’objets en cuivre par fabrication additive par extrusion de matière : Etude de la faisabilité : cas de pâtes chargées utilisant des hydrogels de polysaccarides comme systèmes liants“. Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0054.
Der volle Inhalt der QuelleAmong the seven additive manufacturing methods applied to metals, Extrusion Additive Manufacturing (EAM) appears as a promising technique to produce copper objects. This indirect forming process involves conveying a material and pushing it through an orifice to form strands of material. Three-dimensional objects are built by stacking successive layers from a mixture of metal powder particles and a binding system.Typical formulations for this process include a thermoplastic binder, and the materials are usually packaged in filament form, which is complex to handle and convey. In addition, post-processing steps are usually lengthy and require specific equipment, which can lead to high costs and production lead times.In this perspective, the use of formulations using biobased binder systems appears to be a promising alternative, offering potential advantages in terms of production speed, energy efficiency and environmental impact. The considered materials are metal pastes based on polysaccharide hydrogels loaded with copper powder. The main objective of this work is to study the suitability of the behaviour of these formulations with the extrusion additive manufacturing process. Defining printability criteria helps to understand relationships between the properties of the formulations, the course of the shaping process, and the quality of the obtained objects
Coffigniez, Marion. „Additive manufacturing of 3D architectured metallic biomaterials by robocasting“. Thesis, Lyon, 2021. http://www.theses.fr/2021LYSEI007.
Der volle Inhalt der QuelleBeyond the personalisation aspect that it can bring to the medical field, additive manufacturing also gives access to the elaboration of cellular structures. These structures, with controlled porosity, make it possible both to modulate the mechanical properties of the object and to promote the cellular invasion necessary in tissue engineering. Among the metals commonly used in orthopaedic surgery, titanium alloys are those with the rigidity least distant from that of bone. This study therefore focuses on the development of structures made of Ti6-Al-4V, but also of magnesium since it has the advantage of being resorbable in the body. The scaffolds are obtained by robocasting, a process consisting of extruding, layer by layer, a pasty ink made up of powder and binder. The structures have then to be debinded and sintered at high temperature to achieve their final properties. For Ti-6Al-4V structures, a parametric study is carried out to evaluate the possibilities and limits of the process in terms of structures (and microstructures), chemical compositions and mechanical properties obtained. After optimisation, it is possible to obtain parts with two levels of interconnected porosities (intra-filament (interconnected) microporosity, beneficial for cell adhesion according to the literature, and drawn macropores), keeping a specific yield strength higher than that of bone (105 MPa.cm³/g) and a Young's modulus close to that of bone (28-30 GPa). An intra-filament porosity gradient can also be obtained by varying the powder size within a single part. Concerning magnesium, a binder compatible with the reactivity of the powder (ethanol base) has been identified and the first steps of the process (printing, debinding) are therefore quite feasible for this material. However, conventional sintering of (pure) magnesium is complicated by its reactivity. Alternative sintering methods are therefore being investigated (liquid phase sintering, Spark Plasma Sintering)
Chabot, Alexia. „Méthodologie de monitoring multiphysique des procédés DED : développement par une démarche expérimentale“. Thesis, Ecole centrale de Nantes, 2020. http://www.theses.fr/2020ECDN0022.
Der volle Inhalt der QuelleAdditive Manufacturing (AM) is a promising technology compared to subtractive processes, in terms of cost or freedom of manufacturing functional parts. Among the AM techniques, Laser Metal Deposition (LMD) and Wire-Arc Additive Manufacturing (WAAM), included in the Direct Energy Deposition (DED) processes, manufacture parts by directly melting the material in a layer-by-layer maner. Those processes are currently mainly operated in open-loop. Thus, an acceptable part regarding the specified specifications is often the result of a trial-and-error method. In order to improve DED processes performances and to get rid of this trial-and-error method, monitoring and numerical simulation are the most widely investigated solutions. These PhD works propose a generic multiphysic monitoring methodology, based on four independant control loops which can be operated simultaneously. Those control loops are dedicated to the part temperature, geometry, and structural health, and the Stick Out. In these PhD works, control loops have been mainly implemented on the WAAM process, and a specific attention has been devoted to their developments to ensure their applicability to the LMD process. Concurrent to these monitoring develoments, an evaluation of some existing numerical tools has been conducted, in order to integrate simulation together with monitoring in a manufacturing environement. This PhD project is part of the Joint Laboratory of Marine Techology formed by Naval Group and Centrale Nantes
Radel, Simon. „Implémentation d'un contrôle en ligne pour système de fabrication additive métallique de structures treillis par soudage à l'arc“. Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS078/document.
Der volle Inhalt der QuelleWire Arc Additive Manufacturing (WAAM) has the possibility to build metallic structures in 3D space. WAAM system is based on welding process to deposit metallic material and on a robot that moves the welding torch to add material at a given position. For large skeleton structures, it was chosen to deposit material point by point. Welding process induces fluctuations.To be fully scalable, two main features must be taken into account. First, monitoring of the process is necessary. Local control on the geometry of the deposition must be used to reach the final shape. Secondly, some deposition strategies must be implemented to manage branch intersections. To reach these two objectives, anadaptive and modular slicer and a process manager have been developed in order to implement this control. It allows us, if an error occurs during the deposition, to change the position of the effector or the process parameters. To obtain the desired geometry, the CAM software have to be able to, (i) do a slicing during the additive process of the part with a variable deposit height in order to take into account variation of the deposition process and (ii) manage the deposition strategy at intersection to output the position of the torch
Chastand, Victor. „Etude du comportement mécanique et des mécanismes d'endommagement de pièces métalliques réalisées par fabrication additive“. Thesis, Ecole centrale de Lille, 2016. http://www.theses.fr/2016ECLI0012/document.
Der volle Inhalt der QuelleAdditive manufacturing offers new opportunities for industries to manufacture complex parts with no additional tooling and better optimization of the material used.This thesis is about the analysis of the mechanical properties and the damaging mechanisms of parts produced by additive manufacturing, using mechanical properties of casted and wrought parts as reference. This type of analysis is necessary in order to industrialize the process.The tensile and fatigue properties on Titanium Ti-6Al-4V and Aluminium AlSi7Mg0,6 were measured. The effects of the process, the manufacturing direction, the post-machining and the post-heat treatments were compared. Properties are at least at the level of casting.A correlation of these results with microstructures and fracture surfaces was made in order to extract the damaging mechanisms. A method to measure the criticity of the defects in a part was defined. Some of these hypotheses were verified using microtomographic in situ tensile tests
Corona, Galvan Luis. „Prototypage rapide de pièces en acier : étude du dépôt de matière et d'énergie lors de la fusion à l'arc d'un fil par le procédé MIG-CMT“. Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS062/document.
Der volle Inhalt der QuelleA test bench specially dedicated to additive manufacturing by a new technology based on the electric arc melting of a metallic wire has been developed. This technology uses an electric arc welding process called Cold Metal Transfer (CMT) as energy source to ensure the controlled melting of the wire and the deposition of liquid metal droplets to produce mechanical parts by superposing weld beads. The developed technology was used to make specimens from a low alloyed steel wire. The influence of the many parameters controlling the arc welding source on the mechanism of wire melting and transfer of molten metal droplets to form weld beads was studied. The melting-transfer cycles of liquid metal were analyzed in particular with special interest in the energies generated during each of the cycle phases. This knowledge has made possible to find different process settings for increasing the metal deposition rate compared to the pre-recorded standard settings in the microprocessor of the CMT welding generator. Walls consisting of the superposition of a large number of weld beads were then made, and the influence of the addition of many layers on the geometry of the deposits were discussed. Finally, a method of online control of the process, based on the principle of control charts, has been developed. A detailed study of the representative waveforms of current and voltage of the melting / transfer cycle with the CMT process has allowed to identify the most relevant characteristics for detecting, from a control chart, a deviation on the process that may lead to the appearance of geometrical defects
Odinot, Julie. „Développement de la fabrication additive directe par DED-CLAD : de la poudre à la mise en forme de pièces céramiques denses“. Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLN059.
Der volle Inhalt der QuelleThis work, in partnership between the ONERA Materials and Composite Structure Department (DMSC) and IREPA Laser within the CLADIATOR project, is based on the study of direct additive manufacturing of dense ceramic materials by direct melt deposition (also known as laser cladding) process. This process enables high dimensions or even multi-materials part manufacturing.It will deal with the adaptation of raw materials (ceramic powders) to the existing machine, especially in the case of powder flowability and optical absorption. Indeed, the powder flowability enables its transportation up to the laser nozzle, while the optical absorption of the laser signal is necessary to allow its melting.In parallel, the existing machine also needs to be adapted to ceramic materials : the main difficulty of this work will be the occurence of cracks during the manufacturing. This phenomena is due to the local heating by the laser and the materials brittleness. That’s why some secondary heating solutions, before or after the melt, will have to be defined to decrease the thermal gradient in the material while processing. Those solutions will be discussed between Onera and Irepa Laser, based on FEM simulations established with COMSOL Multiphysics software.Finally, the elaboration process influence on the manufactured ceramics parts will be investigated with microscopy, mechanical and thermal characterization
Buchteile zum Thema "Fabrication additive métallique DED"
PEYRE, Patrice. „Les procédés de fabrication additive métallique“. In La fabrication additive des alliages métalliques 1, 5–102. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9054.ch1.
Der volle Inhalt der QuellePEYRE, Patrice. „La physique des procédés de fabrication additive métallique“. In La fabrication additive des alliages métalliques 1, 159–207. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9054.ch3.
Der volle Inhalt der QuelleCOLIN, Christophe. „Les microstructures des matériaux métalliques issus de fabrication additive“. In La fabrication additive des alliages métalliques 2, 5–103. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9055.ch1.
Der volle Inhalt der QuelleTHOMAS, Marc. „La matière première : les poudres et les fils métalliques“. In La fabrication additive des alliages métalliques 1, 103–57. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9054.ch2.
Der volle Inhalt der QuelleBACROIX, Brigitte. „Les post-traitements en fabrication additive“. In La fabrication additive des alliages métalliques 2, 105–67. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9055.ch2.
Der volle Inhalt der QuelleCARIN, Muriel. „La simulation numérique des procédés de fabrication additive“. In La fabrication additive des alliages métalliques 1, 209–53. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9054.ch4.
Der volle Inhalt der QuelleCHARKALUK, Éric. „Les propriétés d’usage des pièces élaborées par fabrication additive“. In La fabrication additive des alliages métalliques 2, 169–262. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9055.ch3.
Der volle Inhalt der QuelleDennies, Daniel P., und S. Lampman. „Failures Related to Metal Additive Manufacturing“. In Analysis and Prevention of Component and Equipment Failures, 250–65. ASM International, 2021. http://dx.doi.org/10.31399/asm.hb.v11a.a0006838.
Der volle Inhalt der QuelleKonferenzberichte zum Thema "Fabrication additive métallique DED"
Landes, Scott, Trupti Suresh, Anamika Prasad, Todd Letcher, Paul Gradl und David Ellis. „Investigation of Additive Manufactured GRCop-42 Alloy Developed by Directed Energy Deposition Methods“. In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-24400.
Der volle Inhalt der QuelleSun, Kan, Yongjia Wu, Huan Qi, Zhiwei Wu und Lei Zuo. „Direct Energy Deposition 3D Printing of Thermoelectric Materials: Simulation and Experiments“. In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-98396.
Der volle Inhalt der QuelleChen, Wei, Alexandre Cachinhasky, Chad Yates, Mikhail Anisimov, John Speights, James Overstreet und Aaron Avagliano. „A Case Study for Graded Material Development“. In Offshore Technology Conference. OTC, 2021. http://dx.doi.org/10.4043/31065-ms.
Der volle Inhalt der QuelleWang, Qian, Jianyi Li, Abdalla R. Nassar, Edward W. Reutzel und Wesley Mitchell. „Build Height Control in Directed Energy Deposition Using a Model-Based Feed-Forward Controller“. In ASME 2018 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/dscc2018-9058.
Der volle Inhalt der QuelleManoharan, Madhanagopal, Potnuru Hema Praneetha Naidu, Midhun Joy und Senthilkumaran Kumaraguru. „Medial Axis Transformation Based Design and Process Planning Methodology for Discrete Multi-Material Additive Manufacturing“. In ASME 2022 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/detc2022-89819.
Der volle Inhalt der QuelleHassan, Md Mehadi, Madhavan Radhakrishnan, David Otazu, Thomas Lienert und Osman Anderoglu. „Investigation of Microstructure and Mechanical Properties of Additive Manufactured AISI - 420 Martensitic Steel Developed by Directed Energy Deposition Method“. In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-71777.
Der volle Inhalt der QuelleBerichte der Organisationen zum Thema "Fabrication additive métallique DED"
Lienert, T. J., B. Long, D. Otazu und Stuart Maloy. Additive Manufactured Grade 91 Fabrication Report using DED-L (M3CA-19-NM-LA-0604-018). Office of Scientific and Technical Information (OSTI), April 2024. http://dx.doi.org/10.2172/2335744.
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