Articoli di riviste: "Hybrid additive manufacturing"

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Layher, Michel, Jens Bliedtner e René Theska. "Hybrid additive manufacturing". PhotonicsViews 19, n. 5 (ottobre 2022): 47–51. http://dx.doi.org/10.1002/phvs.202200041.

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Sarobol, Pylin, Adam Cook, Paul G. Clem, David Keicher, Deidre Hirschfeld, Aaron C. Hall e Nelson S. Bell. "Additive Manufacturing of Hybrid Circuits". Annual Review of Materials Research 46, n. 1 (luglio 2016): 41–62. http://dx.doi.org/10.1146/annurev-matsci-070115-031632.

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Langer, Lukas, Matthias Schmitt, Georg Schlick e Johannes Schilp. "Hybride Fertigung mittels Laser-Strahlschmelzen/Hybrid manufacturing by laser-based powder bed fusion". wt Werkstattstechnik online 111, n. 06 (2021): 363–67. http://dx.doi.org/10.37544/1436-4980-2021-06-7.

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Abstract (sommario):

Die additive Fertigung ermöglicht komplexe Geometrien und individualisierte Bauteile. Die hohen Material- und Fertigungskosten können ein Hindernis für einen wirtschaftlichen Einsatz sein. In der hybriden additiven Fertigung werden die Vorteile konventioneller sowie additiver Fertigungsverfahren kombiniert. Für eine weitere Steigerung der Wirtschaftlichkeit und Effizienz werden nichtwertschöpfende Schritte der Prozesskette identifiziert und Automatisierungsansätze entwickelt.   Additive manufacturing enables complex geometries and individualized components. However, high material and manufacturing costs can be a hindrance for economical use. Hybrid additive manufacturing combines the advantages of conventional with additive manufacturing processes. For a further increase in profitability and efficiency, non-value-adding steps in the process chain are identified and automation approaches developed.

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Yue, Wenwen, Yichuan Zhang, Zhengxin Zheng e Youbin Lai. "Hybrid Laser Additive Manufacturing of Metals: A Review". Coatings 14, n. 3 (6 marzo 2024): 315. http://dx.doi.org/10.3390/coatings14030315.

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Due to the unparalleled benefits of traditional processing techniques, additive manufacturing technology has experienced rapid development and continues to expand its applications. However, as industrial standards advance, the pressing needs for high precision, high performance, and high efficiency in the manufacturing sector have emerged as critical bottlenecks hindering the technology’s progress. Single-laser additive manufacturing methods are insufficient to meet these demands. This review presents a comprehensive exploration of metal hybrid laser additive manufacturing technology, encompassing various aspects, such as multi-process hybrid laser additive manufacturing, additive–subtractive hybrid manufacturing, multi-energy hybrid additive manufacturing, and multi-material hybrid additive manufacturing. Through a thorough examination of the principles of laser additive manufacturing technology and the concept of hybrid manufacturing, this paper investigates in depth the notable advantages of hybrid laser additive manufacturing technology. It provides valuable insights and recommendations to guide the development and research of innovative machining technologies.

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Pragana, João P. M., Stephan Rosenthal, Ivo M. F. Bragança, Carlos M. A. Silva, A. Erman Tekkaya e Paulo A. F. Martins. "Hybrid Additive Manufacturing of Collector Coins". Journal of Manufacturing and Materials Processing 4, n. 4 (9 dicembre 2020): 115. http://dx.doi.org/10.3390/jmmp4040115.

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The objective of this paper is to present a new hybrid additive manufacturing route for fabricating collector coins with complex, intricate contoured holes. The new manufacturing route combines metal deposition by additive manufacturing with metal cutting and forming, and its application is illustrated with an example consisting of a prototype coin made from stainless steel AISI 316L. Experimentation and finite element analysis of the coin minting operation with the in-house computer program i-form show that the blanks produced by additive manufacturing and metal cutting can withstand the high compressive pressures that are attained during the embossing and impressing of lettering and other reliefs on the coin surfaces. The presentation allows concluding that hybrid additive manufacturing opens the way to the production of innovative collector coins with geometric features that are radically different from those that are currently available in the market.

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Seifarth, C., R. Nachreiner, S. Hammer, Jörg Hildebrand, J. P. Bergmann, M. Layher, A. Hopf et al. "Hybride additive Multimaterialbearbeitung/Hybrid additive Multi Material Processing – High-resolution hybrid additive Multimaterial production of individualized products". wt Werkstattstechnik online 109, n. 06 (2019): 417–22. http://dx.doi.org/10.37544/1436-4980-2019-06-19.

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Das Ziel von HyAdd3D ist es, mit neuer Anlagentechnik komplexe Bauteile additiv zu fertigen und gleichzeitig den Anforderungen einer Multimaterialfertigung gerecht zu werden. Das Projekt umfasst die Entwicklung einer hybriden Verfahrenslösung, welche in der Lage ist, neue Materialien mit funktionalen Zusatzstoffen zu verarbeiten. Der Beitrag beschreibt den HyAdd3D-Ansatz und beleuchtet den aktuellen Projektstand. Abschließend werden die aktuellen Ergebnisse zusammengefasst und ein Ausblick auf die folgenden Entwicklungsschritte gegeben.   The aim of HyAdd3D is to create complex additive manufactured components with novel equipment technology whilst simultaneously fulfilling the requirements of the multi-material manufacturing process. The project engages in developing a hybrid procedure solution that is able to process new materials with functional additives. This article describes the HyAdd3D approach and examines the current project status. All relevant findings are summarized to conclude and further developing measures are explained.

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Popov, Vladimir V., e Alexander Fleisher. "Hybrid additive manufacturing of steels and alloys". Manufacturing Review 7 (2020): 6. http://dx.doi.org/10.1051/mfreview/2020005.

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Hybrid additive manufacturing is a relatively modern trend in the integration of different additive manufacturing techniques in the traditional manufacturing production chain. Here the AM-technique is used for producing a part on another substrate part, that is manufactured by traditional manufacturing like casting or milling. Such beneficial combination of additive and traditional manufacturing helps to overcome well-known issues, like limited maximum build size, low production rate, insufficient accuracy, and surface roughness. The current paper is devoted to the classification of different approaches in the hybrid additive manufacturing of steel components. Additional discussion is related to the benefits of Powder Bed Fusion (PBF) and Direct Energy Deposition (DED) approaches for hybrid additive manufacturing of steel components.

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Parupelli, Santosh Kumar, e Salil Desai. "Understanding Hybrid Additive Manufacturing of Functional Devices". American Journal of Engineering and Applied Sciences 10, n. 1 (1 gennaio 2017): 264–71. http://dx.doi.org/10.3844/ajeassp.2017.264.271.

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Li, J., T. Wasley, T. T. Nguyen, V. D. Ta, J. D. Shephard, J. Stringer, P. Smith, E. Esenturk, C. Connaughton e R. Kay. "Hybrid additive manufacturing of 3D electronic systems". Journal of Micromechanics and Microengineering 26, n. 10 (23 agosto 2016): 105005. http://dx.doi.org/10.1088/0960-1317/26/10/105005.

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Liu, Jikai, e Albert C. To. "Topology optimization for hybrid additive-subtractive manufacturing". Structural and Multidisciplinary Optimization 55, n. 4 (29 agosto 2016): 1281–99. http://dx.doi.org/10.1007/s00158-016-1565-4.

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Escher, C., e C. Mutke. "Additive Manufacturing of Tool Steels*". HTM Journal of Heat Treatment and Materials 77, n. 2 (1 aprile 2022): 143–55. http://dx.doi.org/10.1515/htm-2022-1002.

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Abstract Additive manufacturing of tool steels represents a great challenge, yet it offers new possibilities for the tool manufacture of, for example, complex forming tools with conformal cooling. First, this contribution gives an overview of the most relevant additive manufacturing processes, the materials and processing concepts. By means of a hybrid manufactured press hardening tool for high-strength sheet metal parts, an example of practical implementation is presented subsequently.

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Ley, Jazmin, Cristian Pantea, John Greenhall e Joseph A. Turner. "Resonant ultrasound spectroscopy of hybrid metal additive manufacturing". Journal of the Acoustical Society of America 154, n. 4_supplement (1 ottobre 2023): A150. http://dx.doi.org/10.1121/10.0023085.

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Additive manufacturing has been targeted as the next high-impact fabrication technique for parts and components. Hybrid metal additive manufacturing (AM) refers to the 3-D printed fabrication process involving secondary manufacturing processes or energy sources and multifunctional printing. Specific layers are altered within the build using additional processes (i.e., milling or peening) that are synergistic with the additive process. This combination alters the sample microstructure and can refine grains, increase dislocation density, or induce residual stresses. The effect of these hybrid layers is typically not confined within the layer alone but has a compounding effect on preceding layers. The goal is to control the changes in print parameters throughout the build to enhance component performance, but unique challenges remain for nondestructive validation of such samples. Traditional ultrasonic methods on hybrid-AM components have successfully mapped material variations with sufficient spatial resolution. However, the use of resonance ultrasound spectroscopy (RUS) for hybrid-AM is less developed. In this presentation, the use of RUS is described relative to the characterization of hybrid AM 316L stainless steel samples. The spatial organization of the hybrid samples affects the resonances relative to their mode shape. Computational models are used to quantify the impact of the hybrid processes.

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Geiger, R., S. Rommel, J. Burkhardt e T. Prof Bauernhansl. "Additiver Hybrid-Leichtbau – Highlight 3D print*/Additive Hybrid Lightweight Construction - Highlight 3D print". wt Werkstattstechnik online 106, n. 03 (2016): 169–74. http://dx.doi.org/10.37544/1436-4980-2016-03-73.

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Additive Fertigungsverfahren bieten durch ihren schichtweisen Aufbau einzigartige Gestaltungsfreiheiten. Hieraus leitet sich ein enormes Potential für den strukturellen Leichtbau ab. Bionische Leichtbaustrukturen, integrierte Funktionalitäten sowie topologieoptimierte Bauteile lassen sich direkt produzieren. Neben dem strukturellen Leichtbau lassen sich durch die Verwendung hochfester Werkstoffe oder von Werkstoffen mit geringer Dichte ebenfalls Leichtbauprodukte generieren. Ein Beispiel für werkstofflichen Leichtbau sind Faserverbundstrukturen, welche geringe Materialdichte mit hoher Festigkeit kombinieren. Durch Bündelung der Vorteile additiver Fertigungsverfahren mit Halbzeugen aus Hochleistungswerkstoffen – beispielsweise kohlenstofffaserverstärkten Kunststoffen – werden noch leichtere Produkte möglich. Besonders die Funktionsintegration und die Designfreiheit additiver Verfahren schaffen hier völlig neue Gestaltungsmöglichkeiten und einen Individualisierungsgrad, der im Leichtbau bisher unbekannt ist. Anhand eines Produktbeispiels wird aufgezeigt, welche Potentiale additiver Hybrid-Leichtbau eröffnet. Ausgehend von einer topologieoptimierten Form erfolgt die Ableitung eines Bauteils. Dies wird im Lasersinterverfahren (SLS) gefertigt und in Kombination mit Kohlenstofffaserverbund (CFK)-Rohren sowie weiteren additiv gefertigten Bauteilen zum Produkt „Hocker“ zusammengefügt. Parallel wird das Verbundsystem digital abgebildet und simulativ überprüft.   Additive manufacturing technology offers unique design flexibility due to its layer-based construction approach. This provides new potential for lightweight construction. Bionic lightweight structures, integrated functionality, and topology-optimized structures can now be manufactured. Another method to generate lightweight design is the use of high-strength materials with low density. For example, fiber reinforced materials which combine high-tensile fibers with low material density. The combination of these two unique benefits leads towards ultra-light products. The degree of individualization through additive manufacturing represents a new tool in the field of lightweight design, providing new construction possibilities. This paper presents the potential of hybrid lightweight design with the help of a specific product. An ergonomic lightweight seat starts with a topology optimized 3D form. The construction combines additive manufactured parts with carbon fiber reinforced plastic (CFRP) pre-products. Additionally, the interaction between the constituent parts has been simulated.

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Seidel, André, Ariane Straubel, Thomas Finaske, Tim Maiwald, Stefan Polenz, Maximilian Albert, Jonas Näsström et al. "Added value by hybrid additive manufacturing and advanced manufacturing approaches". Journal of Laser Applications 30, n. 3 (agosto 2018): 032301. http://dx.doi.org/10.2351/1.5040632.

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Chong, Li, Seeram Ramakrishna e Sunpreet Singh. "A review of digital manufacturing-based hybrid additive manufacturing processes". International Journal of Advanced Manufacturing Technology 95, n. 5-8 (22 novembre 2017): 2281–300. http://dx.doi.org/10.1007/s00170-017-1345-3.

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Potgieter, Johan, Olaf Diegel, Frazer Noble e Martin Pike. "Additive Manufacturing in the Context of Hybrid Flexible Manufacturing Systems". International Journal of Automation Technology 6, n. 5 (5 settembre 2012): 627–32. http://dx.doi.org/10.20965/ijat.2012.p0627.

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This paper examines additive manufacturing technologies in the context of their potential use in flexible manufacturing systems. It reviews which current technologies are capable of producing full-strength production parts. It also examines which technologies might be applicable to FMS and how they might be implemented as part of a hybrid manufacturing cell.

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Wurm, Steffen, Simon Storms e Werner Herfs. "Automatisierte, robotergestützte hybride Fertigung/Automated, robotic hybrid manufacturing – Enabling additive manufacturing systems for close-to-series production". wt Werkstattstechnik online 112, n. 09 (2022): 569–73. http://dx.doi.org/10.37544/1436-4980-2022-09-41.

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Additive Fertigungsverfahren werden zunehmend in kleinen und mittleren Serien eingesetzt, was zu höheren Qualitätsanforderungen zum Beispiel an Oberflächeneigenschaften oder Maßhaltigkeit führen kann. Um komplexe Geometrien effizient fertigen zu können, wurde eine durchgängige roboterbasierte, hybride Fertigungskette entwickelt. Diese vereint den additiven Fertigungsprozess mit einer adaptiven spanenden Nachbearbeitung. Der Prozess wird über ein entwickeltes Softwareframework geplant und gesteuert. Additive manufacturing processes are increasingly being used in small and medium-sized series, which can lead to higher quality requirements, e.g. for surface properties or dimensional accuracy. To be able to manufacture complex geometries efficiently, a continuous robot-based hybrid manufacturing chain has been developed. It combines the additive manufacturing process with an adaptive form of machining post-processing. A software framework plans and controls the process.

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Nyamuchiwa, Kudakwashe, Robert Palad, Joan Panlican, Yuan Tian e Clodualdo Aranas. "Recent Progress in Hybrid Additive Manufacturing of Metallic Materials". Applied Sciences 13, n. 14 (20 luglio 2023): 8383. http://dx.doi.org/10.3390/app13148383.

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Additive Manufacturing (AM) is an advanced technology that has been primarily driven by the demand for production efficiency, minimized energy consumption, and reduced carbon footprints. This process involves layer-by-layer material deposition based on a Computer-Aided Design (CAD) model. Compared to traditional manufacturing methods, AM has enabled the development of complex and topologically functional geometries for various service parts in record time. However, there are limitations to mass production, the building rate, the build size, and the surface quality when using metal additive manufacturing. To overcome these limitations, the combination of additive manufacturing with traditional techniques such as milling and casting holds the potential to provide novel manufacturing solutions, enabling mass production, improved geometrical features, enhanced accuracy, and damage repair through net-shape construction. This amalgamation is commonly referred to as hybrid manufacturing or multi-material additive manufacturing. This review paper aimed to explore the processes and complexities in hybrid materials, joining techniques, with a focus on maraging steels. The discussion is based on existing literature and focuses on three distinct joining methods: direct joining, gradient path joining, and intermediate section joining. Additionally, current challenges for the development of the ideal heat treatment for hybrid metals are discussed, and future prospects of hybrid additive manufacturing are also covered.

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Balyakin, A. V., M. A. Oleynik, E. P. Zlobin e D. L. Skuratov. "A review of hybrid additive manufacturing of metal parts". VESTNIK of Samara University. Aerospace and Mechanical Engineering 21, n. 2 (7 luglio 2022): 48–64. http://dx.doi.org/10.18287/2541-7533-2022-21-2-48-64.

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This article provides an overview of the latest developments in the field of hybrid additive manufacturing of metal parts. The concept and various kinds of additive manufacturing are discussed. Special attention is paid to hybridization of additive technologies and various processes of forming: die forging, deep drawing, and others. The background and significance of the technologies, as well as their applicability in production are presented. The combination of additive manufacturing with forming processes is carried out with a dual purpose: to expand the area of application of additive manufacturing and overcome its limitations associated with low productivity, metallurgical defects, surface roughness and lack of dimensional accuracy; new application of traditional forming processes.

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Kapil, Sajan, Prathamesh Joshi, Hari Vithasth Yagani, Dhirendra Rana, Pravin Milind Kulkarni, Ranjeet Kumar e K. P. Karunakaran. "Optimal space filling for additive manufacturing". Rapid Prototyping Journal 22, n. 4 (20 giugno 2016): 660–75. http://dx.doi.org/10.1108/rpj-03-2015-0034.

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Purpose In additive manufacturing (AM) process, the physical properties of the products made by fractal toolpaths are better as compared to those made by conventional toolpaths. Also, it is desirable to minimize the number of tool retractions. The purpose of this study is to describe three different methods to generate fractal-based computer numerical control (CNC) toolpath for area filling of a closed curve with minimum or zero tool retractions. Design/methodology/approach This work describes three different methods to generate fractal-based CNC toolpath for area filling of a closed curve with minimum or zero tool retractions. In the first method, a large fractal square is placed over the outer boundary and then rest of the unwanted curve is trimmed out. To reduce the number of retractions, ends of the trimmed toolpath are connected in such a way that overlapping within the existing toolpath is avoided. In the second method, the trimming of the fractal is similar to the first method but the ends of trimmed toolpath are connected such that the overlapping is found at the boundaries only. The toolpath in the third method is a combination of fractal and zigzag curves. This toolpath is capable of filling a given connected area in a single pass without any tool retraction and toolpath overlap within a tolerance value equal to stepover of the toolpath. Findings The generated toolpath has several applications in AM and constant Z-height surface finishing. Experiments have been performed to verify the toolpath by depositing material by hybrid layered manufacturing process. Research limitations/implications Third toolpath method is suitable for the hybrid layered manufacturing process only because the toolpath overlapping tolerance may not be enough for other AM processes. Originality/value Development of a CNC toolpath for AM specifically hybrid layered manufacturing which can completely fill any arbitrary connected area in single pass while maintaining a constant stepover.

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Pawlowski, Alexander E., Derek A. Splitter, Thomas R. Muth, Amit Shyam, J. Keith Carver, Ralph B. Dinwiddie, Amelia M. Elliott, Zachary C. Cordero e Matthew R. French. "Producing Hybrid Composites By Combining Additive Manufacturing and Casting". AM&P Technical Articles 175, n. 7 (1 ottobre 2017): 16–21. http://dx.doi.org/10.31399/asm.amp.2017-07.p016.

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Abstract Additive manufacturing by itself provides many benefits, but by combining different materials processing techniques like traditional casting with additive manufacturing to create hybrid processes, custom materials can be tailor-made and mass produced for applications with specific performance needs. This article reports on research to create metal-metal interpenetrating phase composite materials using additive manufacturing and casting methods in combination.

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Kovacev, Nikolina, Sheng Li, Weining Li, Soheil Zeraati-Rezaei, Athanasios Tsolakis e Khamis Essa. "Additive Manufacturing of Novel Hybrid Monolithic Ceramic Substrates". Aerospace 9, n. 5 (7 maggio 2022): 255. http://dx.doi.org/10.3390/aerospace9050255.

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Additive manufacturing (AM) can revolutionise engineering by taking advantage of unconstrained design and overcoming the limitations of traditional manufacturing capabilities. A promising application of AM is in catalyst substrate manufacturing, aimed at the enhancement of the catalytic efficiency and reduction in the volume and weight of the catalytic reactors in the exhaust gas aftertreatment systems. This work addresses the design and fabrication of innovative, hybrid monolithic ceramic substrates using AM technology based on Digital Light Processing (DLP). The designs are based on two individual substrates integrated into a single, dual-substrate monolith by various interlocking systems. These novel dual-substrate monoliths lay the foundation for the potential reduction in the complexity and expense of the aftertreatment system. Several examples of interlocking systems for dual substrates were designed, manufactured and thermally post-processed to illustrate the viability and versatility of the DLP manufacturing process. Based on the findings, the sintered parts displayed anisotropic sintering shrinkage of approximately 14% in the X–Y direction and 19% in the Z direction, with a sintered density of 97.88 ± 0.01%. Finally, mechanical tests revealed the mechanical integrity of the designed interlocks. U-lock and Thread configurations were found to sustain more load until complete failure.

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Hinton, Jack, Dejan Basu, Maria Mirgkizoudi, David Flynn, Russell Harris e Robert Kay. "Hybrid additive manufacturing of precision engineered ceramic components". Rapid Prototyping Journal 25, n. 6 (8 luglio 2019): 1061–68. http://dx.doi.org/10.1108/rpj-01-2019-0025.

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Purpose The purpose of this paper is to develop a hybrid additive/subtractive manufacturing platform for the production of high density ceramic components. Design/methodology/approach Fabrication of near-net shape components is achieved using 96 per cent Al3O2 ceramic paste extrusion and a planarizing machining operations. Sacrificial polymer support can be used to aid the creation of overhanging or internal features. Post-processing using a variety of machining operations improves tolerances and fidelity between the component and CAD model while reducing defects. Findings This resultant three-dimensional monolithic ceramic components demonstrated post sintering tolerances of ±100 µm, surface roughness’s of ∼1 µm Ra, densities in excess of 99.7 per cent and three-point bending strength of 221 MPa. Originality/value This method represents a novel approach for the digital fabrication of ceramic components, which provides improved manufacturing tolerances, part quality and capability over existing additive manufacturing approaches.

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Häfele, Tobias, Jan-Henrik Schneberger, Jerome Kaspar, Michael Vielhaber e Jürgen Griebsch. "Hybrid Additive Manufacturing – Process Chain Correlations and Impacts". Procedia CIRP 84 (2019): 328–34. http://dx.doi.org/10.1016/j.procir.2019.04.220.

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Shukalov, A. V., V. A. Dubakin e I. O. Zharinov. "Hybrid additive-subtractive methods in robot assisted manufacturing". Journal of Physics: Conference Series 1582 (luglio 2020): 012092. http://dx.doi.org/10.1088/1742-6596/1582/1/012092.

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Berger, Uwe. "1808 A Survey on Hybrid Fabrication Processes by Integration of Additive and Subtractive Manufacturing". Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2015.8 (2015): _1808–1_—_1808–6_. http://dx.doi.org/10.1299/jsmelem.2015.8._1808-1_.

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Holder, Daniel, Manuel Henn, Matthias Buser, Christian Hagenlocher, Volkher Onuseit e Thomas Graf. "Bridging additive and subtractive manufacturing". PhotonicsViews 21, n. 3 (29 maggio 2024): 50–53. http://dx.doi.org/10.1002/phvs.202400022.

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AbstractAdditive manufacturing with laser powder‐bed fusion (PBF‐LB/M) can generate complex metal parts with a high degree of design freedom, which are already being used in various industries. However, the PBF‐LB/M process faces some limitations in achievable surface quality and feature size. To address these challenges, we have developed a novel hybrid manufacturing approach that combines additive manufacturing via PBF‐LB/M with subtractive manufacturing via ultrafast laser machining. By alternating between additive and subtractive processes, it is possible to not only mitigate the limitations of each process but also to introduce new functionality. This synergistic combination enables the creation of parts with superior surface finishes and deep and narrow internal features that are not possible with a single method alone.

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Strong, Danielle, Michael Kay, Brett Conner, Thomas Wakefield e Guha Manogharan. "Hybrid manufacturing – integrating traditional manufacturers with additive manufacturing (AM) supply chain". Additive Manufacturing 21 (maggio 2018): 159–73. http://dx.doi.org/10.1016/j.addma.2018.03.010.

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Kunwar, Puskal, Zheng Xiong, Shannon Theresa Mcloughlin e Pranav Soman. "Oxygen-Permeable Films for Continuous Additive, Subtractive, and Hybrid Additive/Subtractive Manufacturing". 3D Printing and Additive Manufacturing 7, n. 5 (1 ottobre 2020): 216–21. http://dx.doi.org/10.1089/3dp.2019.0166.

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Müller, Marcel, e Elmar Wings. "An Architecture for Hybrid Manufacturing Combining 3D Printing and CNC Machining". International Journal of Manufacturing Engineering 2016 (9 ottobre 2016): 1–12. http://dx.doi.org/10.1155/2016/8609108.

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Additive manufacturing is one of the key technologies of the 21st century. Additive manufacturing processes are often combined with subtractive manufacturing processes to create hybrid manufacturing because it is useful for manufacturing complex parts, for example, 3D printed sensor systems. Currently, several CNC machines are required for hybrid manufacturing: one machine is required for additive manufacturing and one is required for subtractive manufacturing. Disadvantages of conventional hybrid manufacturing methods are presented. Hybrid manufacturing with one CNC machine offers many advantages. It enables manufacturing of parts with higher accuracy, less production time, and lower costs. Using the example of fused layer modeling (FLM), we present a general approach for the integration of additive manufacturing processes into a numerical control for machine tools. The resulting CNC architecture is presented and its functionality is demonstrated. Its application is beyond the scope of this paper.

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Grzesik, Wit. "Hybrid manufacturing of metallic parts integrated additive and subtractive processes". Mechanik 91, n. 7 (9 luglio 2018): 468–75. http://dx.doi.org/10.17814/mechanik.2018.7.58.

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This review paper highlights the hybrid manufacturing processes which integrate the additive and subtractive processes performing on one hybrid platform consisting of the LMD (laser metal deposition) unit and multi-axis CNC machining center. This hybrid technology is rapidly developed and has many applications in Production/Manufacturing 4.0 including the LRT (laser repair technology). In particular, some important rules and advantages as well as technological potentials of the integration of a powder metal deposition and finishing CNC milling/turning operations are discussed and overviewed. Some representative examples such as formation of difficult features around the part periphery, deposition of functional layers and coatings and repair of high-value parts in aerospace industry are provided. Moreover, the technological strategies, CAD/CAM and CAI programs and construction designs of the hybrid manufacturing platforms are explained. Some conclusions and future trends in the implementation of hybrid processes are outlined.

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Refle, O., J. Günthel, M. Burgard, J. Janhsen, P. Springer, C. Seifarth e M. Echsel. "Additive Fertigung mikromechatronischer Systeme*/Additive manufacturing of micromechatronic systems - NextFactory: Embedding AM (additive manufacturing) technologies in a hybrid process chain". wt Werkstattstechnik online 107, n. 06 (2017): 426–31. http://dx.doi.org/10.37544/1436-4980-2017-06-42.

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Das Projekt „NextFactory“ kombiniert verschiedene Technologien mit dem Ziel, ein neuartiges Produktionsmittel zur Herstellung mikromechatronischer Systeme als funktionale Prototypen oder in kleinsten Stückzahlen zur Verfügung zu stellen. Der Fachartikel gibt einen Überblick zu dem produktionstechnischen Ansatz sowie zur Vision des Projekts und beleuchtet anschließend den aktuellen Projektstand. Zuletzt werden die aktuellen Ergebnisse zusammengefasst und ein Ausblick auf die kommenden Entwicklungsschritte gegeben.   The NextFactory project is based on different technological pillars to innovate the production technology for functional prototypes and small lot sizes of micro-mechatronic systems. This paper presents the vision of the project, followed by a closer look on the current status of the technological developments and concludes with the presentation of preliminary results and an outlook on the next development steps.

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Avram, Oliver, Chris Fellows, Marco Menerini e Anna Valente. "Automated platform for consistent part realization with regenerative hybrid additive manufacturing workflow". International Journal of Advanced Manufacturing Technology 119, n. 3-4 (29 novembre 2021): 1737–55. http://dx.doi.org/10.1007/s00170-021-08218-5.

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AbstractNowadays, the role of hybridization within the wider manufacturing ecosystem gains significant momentum with multiple commercial solutions already available on the market. Despite the very promising benefits of combining and selectively exploiting the advantages of additive and subtractive technologies on the same machine, hybrid additive manufacturing is far from reaching its full potential. One of the central limitations of existing hybrid process chains is the lack of a harmonized, structured and automated workflows to support an adaptive manufacturing strategy. This work is motivated by the need to bridge this gap and to capture the logic behind an adaptive hybrid process chain with the aim to support the achievement of enhanced product quality and improved operational efficiency in hybrid additive manufacturing. The paper discusses the implementation of a hybrid CAx platform and the underlying methodology aiming at the dynamic reduction of variabilities associated with the laser metal deposition process. The hybrid workflow identifies the most adapted sequence and planning of additive and subtractive operations while considering part inspection as an in-envelope functionality to quantify the geometrical and dimensional part deviations and to trigger the regenerative mechanism. The methodology is demonstrated on a hybrid machine by deploying laser ablation for the in situ removal of build deviations and an adapted deposition operation as part of a regenerative strategy leading to higher part confidence.

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Stavropoulos, Panagiotis, Harry Bikas, Oliver Avram, Anna Valente e George Chryssolouris. "Hybrid subtractive–additive manufacturing processes for high value-added metal components". International Journal of Advanced Manufacturing Technology 111, n. 3-4 (2 ottobre 2020): 645–55. http://dx.doi.org/10.1007/s00170-020-06099-8.

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Abstract Hybrid process chains lack structured decision-making tools to support advanced manufacturing strategies, consisting of a simulation-enhanced sequencing and planning of additive and subtractive processes. The paper sets out a method aiming at identifying an optimal process window for additive manufacturing, while considering its integration with conventional technologies, starting from part inspection as a built-in functionality, quantifying geometrical and dimensional part deviations, and triggering an effective hybrid process recipe. The method is demonstrated on a hybrid manufacturing scenario, by dynamically sequencing laser deposition (DLM) and subtraction (milling), triggered by intermediate inspection steps to ensure consistent growth of a part.

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Manogharan, Guha, Richard A. Wysk e Ola L. A. Harrysson. "Additive manufacturing–integrated hybrid manufacturing and subtractive processes: economic model and analysis". International Journal of Computer Integrated Manufacturing 29, n. 5 (17 novembre 2015): 473–88. http://dx.doi.org/10.1080/0951192x.2015.1067920.

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Strong, Danielle, Issariya Sirichakwal, Guha P. Manogharan e Thomas Wakefield. "Current state and potential of additive – hybrid manufacturing for metal parts". Rapid Prototyping Journal 23, n. 3 (18 aprile 2017): 577–88. http://dx.doi.org/10.1108/rpj-04-2016-0065.

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Purpose This paper aims to investigate the extent to which traditional manufacturers are equipped and interested in participating in a hybrid manufacturing system which integrates traditional processes such as machining and grinding with additive manufacturing (AM) processes. Design/methodology/approach A survey was conducted among traditional metal manufacturers to collect data and evaluate the ability of these manufacturers to provide hybrid – AM post-processing services in addition to their standard product offering (e.g. mass production). Findings The original equipment manufacturers (OEMs) surveyed have machine availability and an interest in adopting hybrid manufacturing to additionally offer post-processing services. Low volume parts which would be suitable for hybrid manufacturing are generally more profitable. Access to metal AM, process engineering time, tooling requirements and the need for quality control tools were equally identified as the major challenges for OEM participation in this evolving supply chain. Practical implications OEMs can use this research to determine if hybrid manufacturing is a possible fit for their industry using existing machine tools. Originality/value Survey data offer an unique insight into the readiness of metal manufacturers who play an integral role in the evolving hybrid supply chain ecosystem required for post-processing of AM metal parts. This study also suggests that establishing metal AM centers around OEMs as a shared resource to produce near-net AM parts would be beneficial.

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Dilberoglu, Ugur M., Bahar Gharehpapagh, Ulas Yaman e Melik Dolen. "Current trends and research opportunities in hybrid additive manufacturing". International Journal of Advanced Manufacturing Technology 113, n. 3-4 (27 gennaio 2021): 623–48. http://dx.doi.org/10.1007/s00170-021-06688-1.

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Bernasconi, Roberto, Davood Hatami, Hossein Nouri Hosseinabadi, Valentina Zega, Alberto Corigliano, Raffaella Suriano, Marinella Levi, Giacomo Langfelder e Luca Magagnin. "Hybrid additive manufacturing of a piezopolymer-based inertial sensor". Additive Manufacturing 59 (novembre 2022): 103091. http://dx.doi.org/10.1016/j.addma.2022.103091.

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Xia, Lingwei, Guowei Ma, Fang Wang, Gang Bai, Yi Min Xie, Weiguo Xu e Jianzhuang Xiao. "Globally continuous hybrid path for extrusion-based additive manufacturing". Automation in Construction 137 (maggio 2022): 104175. http://dx.doi.org/10.1016/j.autcon.2022.104175.

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Di Caprio, Francesco, Valerio Acanfora, Stefania Franchitti, Andrea Sellitto e Aniello Riccio. "Hybrid Metal/Composite Lattice Structures: Design for Additive Manufacturing". Aerospace 6, n. 6 (16 giugno 2019): 71. http://dx.doi.org/10.3390/aerospace6060071.

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This paper introduces a numerical tool developed for the design and optimization of axial-symmetrical hybrid composite/metal structures. It is assumed that the defined structures are produced by means of two different processes: Additive Layer Manufacturing (ALM) for the metallic parts and Filament Winding (FW) for the composite parts. The defined optimization procedure involves two specific software: ANSYS and ModeFrontier. The former is dedicated to the production of the geometrical and FE models, to the structural analysis, and to the post-process, focusing on the definition of the Unit Cells for the modelling of the metal part. The latter is dedicated to the definition of the best design set and thus to the optimization flow management. The core of the developed numerical procedure is the routine based on the Ansys Parametric Design Language (APDL), which allows an automatic generation of any geometrical model defined by a generic design set. The developed procedure is able to choose the best design, in terms of structural performance, changing the lattice metallic parameters (number of unit cells and their topology) and the composite parameters (number of plies and their orientation). The introduced numerical tool has been used to design several hybrid structures configurations. These configurations have been analysed in terms of mechanical behaviour under specific boundary conditions and compared to similar conventional metal structure.

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KONDO, Masaki, Yohei ODA e Makoto FUJISHIMA. "The feature of Hybrid Laser Machine on Additive Manufacturing". Proceedings of Mechanical Engineering Congress, Japan 2017 (2017): F141003. http://dx.doi.org/10.1299/jsmemecj.2017.f141003.

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Liu, Fengyuan, Weiguang Wang, Srichand Hinduja e Paulo Jorge Bártolo. "Hybrid Additive Manufacturing System for Zonal Plasma-Treated Scaffolds". 3D Printing and Additive Manufacturing 5, n. 3 (settembre 2018): 205–13. http://dx.doi.org/10.1089/3dp.2018.0056.

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Busetti, Bernhard, Bernhard Steyrer, Bernhard Lutzer, Rafael Reiter e Jürgen Stampfl. "A hybrid exposure concept for lithography-based additive manufacturing". Additive Manufacturing 21 (maggio 2018): 413–21. http://dx.doi.org/10.1016/j.addma.2018.03.024.

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Polenz, Stefan, Markus Oettel, Elena López e Christoph Leyens. "Hybrid Process Chain from Die Casting and Additive Manufacturing". Lightweight Design worldwide 12, n. 3 (giugno 2019): 44–49. http://dx.doi.org/10.1007/s41777-019-0021-8.

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Wanjara, Priti, Sila Atabay, Sheida Sarafan, Javad Gholipour, Josh Soost e Mathieu Brochu. "Overview: Additive/Subtractive Hybrid Manufacturing of Heat Resisting Materials". Key Engineering Materials 964 (23 novembre 2023): 27–32. http://dx.doi.org/10.4028/p-wd7djt.

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An overview of the additive/subtractive hybrid manufacturing (ASHM) research on three heat resisting materials – 18Ni-300 maraging steel, 316L stainless steel, and Inconel 718 (hereinafter 18Ni-300, 316L and IN718) – is provided to bridge key knowledge gaps and establish the respective process-microstructure-property relationships. The results examine validating the final surface roughness properties in the as-built and machined conditions in terms of the linear and areal parameters. Microscopic observations are also detailed to identify the influence of dry machining intermittent passes and/or laser conditions on microstructural features, as well as the bulk density. Mechanical stability assessment involved hardness measurement and tensile testing to evaluate the mechanical response of the materials built by in-envelope ASHM.

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Mak, Sze Yi, Kwong Leong Tam, Ching Hang Bob Yung e Wing Fung Edmond Yau. "Hybrid Metal 3D Printing for Selective Polished Surface". Materials Science Forum 1027 (aprile 2021): 136–40. http://dx.doi.org/10.4028/www.scientific.net/msf.1027.136.

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Metal additive manufacturing has found broad applications in diverse disciplines. Post processing to homogenize and improve surface finishing remains a critical challenge to additive manufacturing. We propose a novel one-stop solution of adopting hybrid metal 3D printing to streamlining the additive manufacturing workflow as well as to improve surface roughness quality of selective interior surface of the printed parts. This work has great potential in medical and aerospace industries where complicated and high-precision additive manufacturing is anticipated.

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GRZESIK, Wit. "HYBRID ADDITIVE AND SUBTRACTIVE MANUFACTURING PROCESSES AND SYSTEMS: A REVIEW". Journal of Machine Engineering 18, n. 4 (30 novembre 2018): 5–24. http://dx.doi.org/10.5604/01.3001.0012.7629.

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This review paper highlights the hybrid manufacturing processes which integrate the additive and subtractive processes performing on one hybrid platform consisting of the LMD (laser metal deposition) unit and CNC machine tools. In particular, some important rules and advantages as well as technological potentials of the integration of different AM technique and finishing CNC machining operations are discussed and overviewed. Some representative examples such as formation of difficult features around the part periphery, deposition of functional layers and coatings and repair of high-value parts in aerospace industry are provided. Some conclusions and future trends in the implementation of hybrid processes are outlined.

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Saunders, Jacob, Mohammad Elbestawi e Qiyin Fang. "Ultrafast Laser Additive Manufacturing: A Review". Journal of Manufacturing and Materials Processing 7, n. 3 (5 maggio 2023): 89. http://dx.doi.org/10.3390/jmmp7030089.

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Ultrafast lasers are proven and continually evolving manufacturing tools. Concurrently, additive manufacturing (AM) has emerged as a key area of interest for 3D fabrication of objects with arbitrary geometries. Use of ultrafast lasers for AM presents possibilities for next generation manufacturing techniques for hard-to-process materials, transparent materials, and micro- and nano-manufacturing. Of particular interest are selective laser melting/sintering (SLM/SLS), multiphoton lithography (MPL), laser-induced forward transfer (LIFT), pulsed laser deposition (PLD), and welding. The development, applications, and recent advancements of these technologies are described in this review as an overview and delineation of the burgeoning ultrafast laser AM field. As they mature, their adoption by industry and incorporation into commercial systems will be facilitated by process advancements such as: process monitoring and control, increased throughput, and their integration into hybrid manufacturing systems. Recent progress regarding these aspects is also reviewed.

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Belitz, Stefan, Tobias Todzy, Andrea Jäger e Henning Zeidler. "Hybrid-additive Fertigung von Werkzeugkomponenten/Hybrid-Additive Manufacturing of Tool Components: Simulative Design of the Laser Metal Deposition Process". wt Werkstattstechnik online 110, n. 06 (2020): 418–23. http://dx.doi.org/10.37544/1436-4980-2020-06-58.

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Durch die wachsende Produktvielfalt nimmt das Potenzial der additiven Fertigung im Werkzeugbau stetig zu. Ein neuartiger Ansatz ist die hybrid-additive Herstellung von Werkzeugkomponenten mittels Laserauftragschweißen. Mithilfe numerischer Simulationen können effiziente Verfahrstrategien analysiert und prozessbedingte Eigenspannungen und Verformungen reduziert werden. Im Rahmen dieser Arbeit wird ein Finite-Elemente-Modell für den Laserauftragschweißprozess entwickelt und in der Software „LS-Dyna“ validiert.   Due to the rising variety of products, the potential of additive manufacturing in tool making is continuously increasing. A novel approach is the hybrid-additive manufacturing of tool components using laser metal deposition (LMD). Numerical simulations can be used to analyze efficient scanning strategies and reduce process-related residual stresses and deformations. Within the scope of this work, a finite-element-model for the LMD process is developed and validated within the software LS-Dyna.

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Sebbe, Naiara P. V., Filipe Fernandes, Vitor F. C. Sousa e Francisco J. G. Silva. "Hybrid Manufacturing Processes Used in the Production of Complex Parts: A Comprehensive Review". Metals 12, n. 11 (2 novembre 2022): 1874. http://dx.doi.org/10.3390/met12111874.

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Additive manufacturing is defined as a process based on the superposition of layers of materials in order to obtain 3D parts; however, the process does not allow achieve the adequate and necessary surface finishing. In addition, with the development of new materials with superior properties, some of them acquire high hardness and strength, consequently decreasing their ability to be machined. To overcome this shortcoming, a new technology assembling additive and subtractive processes, was developed and implemented. In this process, the additive methods are integrated into a single machine with subtractive processes, often called hybrid manufacturing. The additive manufacturing process is used to produce the part with high efficiency and flexibility, whilst machining is then triggered to give a good surface finishing and dimensional accuracy. With this, and without the need to transport the part from one machine to another, the manufacturing time of the part is reduced, as well as the production costs, since the waste of material is minimized, with the additive–subtractive integration. This work aimed to carry out an extensive literature review regarding additive manufacturing methods, such as binder blasting, directed energy deposition, material extrusion, material jetting, powder bed fusion, sheet laminating and vat polymerization, as well as machining processes, studying the additive-subtractive integration, in order to analyze recent developments in this area, the techniques used, and the results obtained. To perform this review, ScienceDirect, Web of Knowledge and Google Scholar were used as the main source of information because they are powerful search engines in science information. Specialized books have been also used, as well as several websites. The main keywords used in searching information were: “CNC machining”, “hybrid machining”, “hybrid manufacturing”, “additive manufacturing”, “high-speed machining” and “post-processing”. The conjunction of these keywords was crucial to filter the huge information currently available about additive manufacturing. The search was mainly focused on publications of the current century. The work intends to provide structured information on the research carried out about each one of the two considered processes (additive manufacturing and machining), and on how these developments can be taken into consideration in studies about hybrid machining, helping researchers to increase their knowledge in this field in a faster way. An outlook about the integration of these processes is also performed. Additionally, a SWOT analysis is also provided for additive manufacturing, machining and hybrid manufacturing processes, observing the aspects inherent to these technologies.

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