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Dissertations / Theses on the topic 'Additive Manufacturing (AM)'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Melpal, Gopalakrishna Ranjan. "Conformal Lattice Structures in Additive Manufacturing (AM)." University of Cincinnati / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1535382325233769.

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2

Chandran, Ramya. "Optimization of Support Structures in Additive Manufacturing (AM) Processes." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479819006942462.

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3

PETERSON, ERIC JOHN. "Additive Manufacturing for Nautical Design An Automated Approach to Marine Manufacturing." Doctoral thesis, Università degli studi di Genova, 2022. https://hdl.handle.net/11567/1101013.

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How can additive manufacturing (AM) technology be applied to automate the production of small marine vessels? For the past 50 years small (below 40 meters) marine vessel manufacturing has been dominated by moulded fiber-reinforced plastics (FRP). There are several shortcomings to this manufacturing method that affect both the formal outcome and the manufacturing process of boats built in FRP: 1) manufacturing requires the use of expensive moulds, 2) formal geometric freedom is limited by moulds which reduce the potential for customization, and 3) special assemblies and structural reinforcement

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4

Paul, Ratnadeep. "Modeling and Optimization of Powder Based Additive Manufacturing (AM) Processes." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378113813.

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5

Allavarapu, Santosh. "A New Additive Manufacturing (AM) File Format Using Bezier Patches." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1385114646.

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6

Sreedhar, Aldric, and C. L. Kaushik Gupta. "Pre-study on the use of additive manufacturing to produce low volume complex parts and its environmental sustainability." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-52800.

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With the rapid increase in demand for more high-value customized products and a more sustainable approach to manufacturing, companies are focusing on being more flexible while also trying to minimize environmental impact. As it is not possible to meet these current demands using traditional manufacturing techniques, manufacturing industries are searching for better manufacturing alternatives to address these issues in order to stay competitive. In this thesis, the two issues of manufacturing complex, low volume parts and environmental sustainability were investigated with the use of the additi

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Ghazizadeh, Ali, and Suraj Lakshminarasimhaiah. "Additive manufacturing and its impacts on manufacturing industries in the future concerning the sustainability of AM." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-56058.

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With the emergence of modern technologies in manufacturing processes, companies need to adapt themselves to these technologies to stay competitive. Additive Manufacturing is one of the upcoming technologies which will bring major changes to the manufacturing process. AM (Additive Manufacturing) offers flexibility in design, production size, customization, etc., Even though there are numerous advantages from the implementation of AM technologies less than 2% of the manufacturing industries use them for production. The purpose of the thesis was to study the impact of AM on manufacturing industri

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Sauter, Barrett. "Ultra-light weight design through additive manufacturing." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-45160.

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ABB Corporate Research was looking to redevelop one product to be manufactured via polymer additive manufacturing (AM), as opposed to its previously traditionally manufacturing method. The current product is cylindrical in shape and must withstand a certain amount of hydrostatic pressure. Due to the pressure and the current design, the cannister is prone to buckling failure. The cannister is currently produced from two cylindrical tube parts and two spherical end sections produced from solid blocks of the same material. For assembly, an inner assembly is inserted into one of the tube parts and

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Strong, Danielle B. "Analysis of AM Hub Locations for Hybrid Manufacturing in the United States." Youngstown State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1495202496133841.

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10

Johansson, Matilda, and Robin Sandberg. "How Additive Manufacturing can Support the Assembly System Design Process." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Industriell organisation och produktion, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30887.

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In product manufacturing, assembly approximately represents 50% of the total work hours. Therefore, an efficient and fast assembly system is crucial to get competitive advantages at the global market and have the right product quality. Today, the verification of the assembly system is mostly done by utilizing software based simulation tools even though limitations have been identified. The purpose of this thesis is to identify when the use of additive manufacturing technology could be used in assessing the feasibility of the assembly system design. The research questions were threefold. First,

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11

Al, Mortadi Noor. "Computer Aided Design/Aided Manufacture/Additive Manufacturing applications in the manufacture of dental appliances." Thesis, Cardiff Metropolitan University, 2014. http://hdl.handle.net/10369/6527.

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12

Philip, Ragnartz, and Axel Staffanson. "Improving the product development process with additive manufacturing." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-40344.

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The following report consists of a master thesis (30 credits) within product development. The thesis is written by Philip Ragnartz and Axel Staffanson, both studying mechanical engineering at Mälardalens University. Developing new components for a production line is costly and time consuming as they must be made from manual measurements and must go through all the conventional manufacturing (CM) steps. Eventual design mistakes will be discovered after the component have been manufactured and tested. To fix the design a completely new component must be designed and therefore double the overall

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13

Wang, Zhiping. "Constructive generative design methods for qualified additive manufacturing." Thesis, Ecole centrale de Nantes, 2021. https://tel.archives-ouvertes.fr/tel-03670417.

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Les technologies de fabrication additive (FA) donnent de plus en plus de liberté de conception aux concepteurs et aux ingénieurs pour concevoir et définir des géométries et des compositions de matériaux très complexes. En raison d'un traitement couche par couche, les contraintes, méthodes, outils et processus de conception en FA sont différents de ceux des processus de fabrication traditionnels. Les méthodes et outils de conception traditionnels ne peuvent pas répondre aux besoins de la conception en FA. Par conséquent, un nouveau domaine de recherche, la conception pour la FA (Design for AM -

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14

Ingman, Richard. "ADAPTION OF A HEATSINK TO ADDITIVE MANUFACTURING. : INCLUDING A GUIDE TO INDUSTRIAL STARTUP OF AM." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262655.

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This thesis is an investigation of the current status of additive manufacturing (AM) regarding different technologies, the level of implementation in industry and the future obstacles for further implementation. As a secondary objective, an existing heatsink for electronic equipment was redesigned, adapted to and improved using the design advantages of AM, and was later manufactured through 3D-printing in aluminium (AlSi10Mg). The thesis resulted in a summarized roadmap of recommended actions for Saab Surveillance in Järfälla in the near future. And a redesigned heatsink, which was tested to h

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Brandemyr, Gabriella. "Powder bed additive manufacturing using waste products from LKAB's pelletization process : A pre-study." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75421.

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This report is the result of a bachelor thesis project executed at Luleå University of Technology(LTU). The purpose of the project was to investigate the possibility to use the metal powder wasteproducts from LKAB’s pelletizing process for additive manufacturing as this would meaneconomic benefits for the sake of LKAB as well as environmental benefits.Two different powders were used in the experiments and were referred to as crush and dust. Theexperiments were made through the selective laser melting (SLM) method with varying laserparameters to observe their effect. These included the laser po

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Karlsson, Mattias, and Axel Magnusson. "Wire and Arc Additive Manufacturing : Pre printing strategy for torque arm." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-79176.

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Wire and Arc Additive Manufacturing (WAAM) is a novel Additive manufacturing method. It is a high deposition rate process which can be suitable for producing low to medium quantities of medium to large sized components. Because it is such a novel method, there are still somechallenges to solve for the method to be useful. This project have been focusing on how to dealwith these challenges and how to manufacture a torque arm with WAAM. This includes the process on how to go from a CAD model to a printed product. Tests have been done during the project parallel with the design of the torque arm.

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Hayagrivan, Vishal. "Additive manufacturing : Optimization of process parameters for fused filament fabrication." Thesis, KTH, Lättkonstruktioner, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-238184.

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An obstacle to the wide spread use of additive manufacturing (AM) is the difficulty in estimating the effects of process parameters on the mechanical properties of the manufactured part. The complex relationship between the geometry, parameters and mechanical properties makes it impractical to derive an analytical relationship and calls for the use of a numerical model. An approach to formulate a numerical model in developed in this thesis. The AM technique focused in this thesis is fused filament fabrication (FFF). A numerical model is developed by recreating FFF build process in a simulation

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18

Cronskär, Marie. "The use of additive manufacturing in the custom design of orthopedic implants." Licentiate thesis, Mittuniversitetet, Institutionen för teknik och hållbar utveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-14390.

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Ariadi, Yudhi. "Facilitating consumer involvement in design for additive manufacturing/3D printing products." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21763.

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This research investigates the potential of the general public to actively design their own products and let consumers either manufacture by themselves or send the files to manufacturers to be produced. This approach anticipates the rapid growth of fabrication technology, particularly in Additive Manufacturing (AM)/3D printing. Recent developments in the field of AM/3D printing have led to renewed interest in how to manufacture customised products and in a way that will allow consumers to create bespoke products more easily. These technologies can enhance the understanding of non-technology co

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Vaidya, Rohit R. "Image Processing (IP) Assisted Tools for Pre- and Post-Processing Operation in Additive Manufacturing (AM)." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1470757856.

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21

Hasting, William. "Geometric Effects of Free-Floating Technique on Alloy 718 Parts Produced via Laser-Powder Bed Fusion." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1613751580039925.

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Koskenniemi, Isak. "Preparing parts for Wire and Arc Additive Manufacturing (WAAM) and net-shape machining." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-74296.

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WAAM is a relatively unexplored additive manufacturing method. Although research in this area has been performed for some years and the hardware is relatively cheap, the method is not widely used. As the name suggest, it uses wire and an arc welding equipment to deposit beads on top of each other to create a geometry. As WAAM is a near net-shape method, the parts must be machined to its net-shape after the beads has been deposited. BAE Systems Hägglunds AB are investigating the use of WAAM in an industrial robot cell and this Master’s thesis has been written with the purpose of enabling the us

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Biancoli, Giacomo. "Additive manufacturing: ricerca sui principali fattori che influenzano il comportamento a fatica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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Gli obiettivi di questo elaborato sono fondamentalmente caratterizzare dei provini (realizzati in Maraging steel e Stainless steel attraverso DMLS) a fatica oligociclica, distinguerne il comportamento in base all'orientamento di costruzione ed analizzare tutti i fattori che possono influenzare la vita di un provino. Esaminando questa caratterizzazione, è possibile avvicinarci all'idea di impiegare direttamente nel processo produttivo pezzi realizzati e montati direttamente in produzione. Dopo una breve introduzione sull'additive manufacturing e sul suo sviluppo nel corso degli anni con le va

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Swartz, Paul. "Evaluation of Tensile Properties for Selective Laser Melted 316L Stainless Steel and the Influence of Inherent Process Features." DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/2024.

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Optimal print parameters for additively manufacturing 316L stainless steel using selective laser melting (SLM) at Cal Poly had previously been identified. In order to further support the viability of the current settings, tensile material characteristics were needed. Furthermore, reliable performance of the as-printed material had to be demonstrated. Any influence on the static performance of parts in the as-printed condition inherent to the SLM manufacturing process itself needed to be identified. Tensile testing was conducted to determine the properties of material in the as-printed conditio

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Palmer, Andrew. "The Design and Development of an Additive Fabrication Process and Material Selection Tool." Master's thesis, University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3635.

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In the Manufacturing Industry there is a subset of technologies referred to as Rapid Technologies which are those technologies that create the ability to compress the time to market for new products under development . Of this subset, Additive Fabrication (AF), or more commonly known as Rapid Prototyping (RP), acquires much attention due to its unique and futuristic approach to the production of physical parts directly from 3D CAD data, CT or MRI scans, or data from laser scanning systems by utilizing various techniques to consecutively generate cross-sectional layers of a given thickness upon

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Gustavsson, Bengt. "Effect of Beam Scan Length on Microstructure Characteristics of EBM Manufactured Alloy 718." Thesis, KTH, Materialvetenskap, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-225416.

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Additive Manufacturing (AM) as a method is on the rise and allow for a high freedom to create unique shapes without being limited by conventional machining methods. The Electron Beam Melting method, developed by Arcam AB in Mölndal, Sweden, use Powder Bed Fusion together with an electron beam and at an elevated temperature (+1000ºC) to lower stress due to thermal gradients. The purpose of this paper is to study the influence of Scan Length during Electron Beam Melting of Alloy 718 in regards to the appearance of shrinkage, porosity, primary carbide precipitation (mainly NbC), primary dendrite

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Sarlak, Shannon. "Möjligheter för produktion med additiv tillverkning : - En fallstudie." Thesis, Högskolan i Skövde, Institutionen för handel och företagande, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-17739.

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Background: Additive manufacturing is a manufacturing process that has for the past 30 years been used substantially within the branch of industry. By adding material layer-by-layer, an object will be designed, and this method is called 3D-printing. Despite the advantage of building an object without assemblage as in traditional manufacturing, there is a lot of limitations with this additive manufacturing. Are there more opportunities than difficulties with additive manufacturing or is this manufacturing process too advanced too take over the traditional manufacturing process once and for all?

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Barsing, Jonas. "A Cost Breakdown and Production Uncertainty Analysis of Additive Manufacturing : A Study of Low-Volume Components Produced with Selective Laser Melting." Thesis, Blekinge Tekniska Högskola, Institutionen för industriell ekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-16730.

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Background: Additive manufacturing has recently gained cogency as a final part manufacturing technique. The method uses a layer-upon-layer technique to build three-dimensional objects. This technique has many advantages creating new opportunities regarding production. Purpose: The purpose of the study is to investigate cost elements, cost drivers, their weight distribution, and to explore production uncertainties of the additive manufacturing process. The production uncertainty parameters of the explored uncertainties are then evaluated to investigate how some of them impacts the production co

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Schunemann, Esteban. "Paste deposition modelling : deconstructing the additive manufacturing process : development of novel multi-material tools and techniques for craft practitioners." Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/13803.

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A novel paste deposition process was developed to widen the range of possible materials and applications. This experimental process developed an increasingly complex series of additive manufacturing machines, resulting in new combinations of novel materials and deposition paths without sacrificing many of the design freedoms inherit in the craft process. The investigation made use of open-source software together with an approach to programming user originated infill geometries to form structural parts, differing from the somewhat automated processing by 'closed' commercial RP systems. A serie

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Nakládalová, Tereza. "Konstrukční optimalizace výrobní linky využitím aditivní technologie SLS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382472.

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This diploma thesis is focused on additive manufacturing, especially on technology Selective Laser Sintering (SLS) and the implementation of additive manufacturing into existing departments of industry, where current elements of systems are supplemented or directly replaced by new parts produced by these technologies. This thesis solves specific project of manipulation unit for manufacturing line. The main goals of the issue are analysis of current construction design and its deficiency, designing and optimalization of this unit in relation to SLS manufacturing technology, product realization

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Antonysamy, Alphons Anandaraj. "Microstructure, texture and mechanical property evolution during additive manufacturing of Ti6Al4V alloy for aerospace applications." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/microstructure-texture-and-mechanical-property-evolution-during-additive-manufacturing-of-ti6al4v-alloy-for-aerospace-applications(03c4d403-822a-4bfd-a0f8-ef49eb65e7a0).html.

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Additive Manufacturing (AM) is an innovative manufacturing process which offers near-net shape fabrication of complex components, directly from CAD models, without dies or substantial machining, resulting in a reduction in lead-time, waste, and cost. For example, the buy-to-fly ratio for a titanium component machined from forged billet is typically 10-20:1 compared to 5-7:1 when manufactured by AM. However, the production rates for most AM processes are relatively slow and AM is consequently largely of interest to the aerospace, automotive and biomedical industries. In addition, the solidifica

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Di, Sannio Christian. "Ricerca di tecniche e materiali innovativi per il settore aerospaziale: caratterizzazione meccanica e sviluppo di provini in cromo-cobalto prodotti in additive manufacturing." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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In questa tesi sperimentale si è effettuata un’attività di ricerca e di sviluppo di provini realizzati in cromo-cobalto-molibdeno con una tecnologia additiva di tipo SLM, dei quali è, inoltre, stata effettuata una caratterizzazione meccanica. L’additive manufacturing è una tecnologia innovativa già utilizzata in differenti settori, come il settore aerospaziale, biomedicale e automotive. Il cromo cobalto è una lega con proprietà estremamente ricercate, soprattutto nei settori aerospaziale e biomedicale. La combinazione di un tale materiale con una simile tecnica non è stata ancora ampiamente

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33

Patibandla, Sivani. "Layer-to-Layer Physical Characteristics and Compression Behavior of 3D Printed Acrylonitrile Butadiene Styrene Metastructures Fabricated using Different Process Parameters." Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1547231646016662.

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Svensson, Fredrik, and Sebastian Wåhlstedt. "Metodutveckling av Additivt Tillverkade (AT) produkter med efterbearbetning i CNC styrda maskiner med enkel identifiering av nollpunkt." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-51789.

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Detta examensarbete har utförts i Karlskoga på två företag, Lasertech LSH AB och PartnerTech Karlskoga AB, där uppdraget bestod i att med en metodutveckling hitta ett generellt angreppssätt som man kan förhålla sig till för att förenkla efterbearbetningen av en additivt tillverkad (AT) detalj. Fortsättningsvis kommer additiv tillverkning att benämnas AT i texten. Svårigheten ligger i att spänna upp och mäta in en detalj i en CNC-maskin som nästan är färdig och saknar självklara inmätning- och inspänningsytor. Syftet med arbetet var att hitta en generell metod att använda sig av för att lösa de

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Westbeld, Julius. "Investigation of support structures of a polymer powder bed fusion process by use of Design of Experiment (DoE)." Thesis, KTH, Lättkonstruktioner, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-243867.

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In this thesis, support structures of a polymer powder based process called XXXXXXXX™ are examined. These structures are crucial for most additive manufacturing processes. The effects of several factors on five industrially important characteristics of support structures are examined by use of the Design of Experiment (DoE) method. It describes the planning as well as the analysis of the experiments. The experiments are planned in a fractional factorial 211-5 design with 64 specimens, resulting in a resolution of IV. The analysis of the data is done by use of the ANOVA method, with which the s

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Gustafsson, Christopher. "Lead-time reduction and rapid prototyping of tools and fixtures, therefore I AM : A case study about additive manufacturing in the automotive industry." Thesis, Mälardalens högskola, Innovation och produktrealisering, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-44762.

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The purpose of this thesis is to investigate how to decrease lead-times of conventionally manufactured prototypes of tools and fixtures. Which could lead to increased knowledge of how an operations site within the automotive industry could utilize additive manufacturing when producing company specific prototypes of tools and fixtures. The research approach applied in this case study combines a literature review to systematically find relevant literature aligned with the research topic of additive manufacturing or 3D printing related to lead-time reduction and generative design terms. With the

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Tamburrini, Simone. "Produzione e caratterizzazione di componenti in WC-Co mediante selective laser melting." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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Uno dei temi chiave della ricerca sull’Additive Manufacturing (AM) è l’accrescimento del campo di materiali processabili. La tecnologia garantisce diversi vantaggi rispetto alle normali tecniche di lavorazione ma richiede esperienza nella lavorazione e conoscenza del materiale. Nello studio oggetto di questa dissertazione si mostrano i risultati di un primo approccio alla lavorazione di WC-Co (carburo di tungsteno in matrice di cobalto) attraverso Selective Laser Melting (SLM). Lo scopo è di gettare le basi per un processo che permetta la produzione di utensili da taglio in WC-Co. Lo studio si

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Costa, Neto Inácio. "Elaboração de um mapeamento de boas práticas de fabricação para manufatura aditiva no laboratório de tecnologias 3D do núcleo de tecnologias estratégicas em saúde da UEPB." Universidade Estadual da Paraíba, 2017. http://tede.bc.uepb.edu.br/jspui/handle/tede/3074.

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Desai, Prathamesh. "Tribosurface Interactions involving Particulate Media with DEM-calibrated Properties: Experiments and Modeling." Research Showcase @ CMU, 2017. http://repository.cmu.edu/dissertations/1123.

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While tribology involves the study of friction, wear, and lubrication of interacting surfaces, the tribosurfaces are the pair of surfaces in sliding contact with a fluid (or particulate) media between them. The ubiquitous nature of tribology is evident from the usage of its principles in all aspects of life, such as the friction promoting behavior of shoes on slippery water-lubricated walkways and tires on roadways to the wear of fingernails during filing or engine walls during operations. These tribosurface interfaces, due to the small length scales, are difficult to model for contact mechani

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Sabri, Hanna Etwal. "Electron Beam Melting : En State of the Art Rapport och komparativ studie av additiva tillverkningsmetoder." Thesis, KTH, Hållbar produktionsutveckling (ML), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-293351.

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Additive tillverkning (AM) är en tillverkningsteknik som har använts i stor utsträckning i industrier de senaste åren. Electron beam melting (EBM) är en innovativ teknik för tillverkning inom ortopediska implantat- och flygindustrin för att EBM erbjuder hög produktivitet och lägre kostnad per del. Jämfört med traditionella tillverkningsmetoder kan EBM tillverka delar med betydande mekaniska egenskaper, men det finns några vanliga brister som hindrar EBMs förmåga att bli en vanligare bearbetningsmetod vid tillverkning. I detta arbete, som tar an formen av en State of the Art Rapport, introducer

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Tairi, Martin. "Selektiv lasersmältning : En State of the Art Rapport och jämförelse av additiva tillverkningsmetoder." Thesis, KTH, Hållbar produktionsutveckling (ML), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277760.

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Additiv tillverkning (AM) är en växande tillverkningsteknologi som har många lovande tekniska, ekologiska och ekonomiska aspekter. Selektiv lasersmältning (SLM) är den AM-metod som står i framkanten av den utveckling som sker inom teknologin. SLM har kapabiliteten att tillverka detaljer med jämförbart goda mekaniska egenskaper gentemot konventionella tillverkningsmetoder men drabbas av vanligt förekommande defekter som hämmar dess möjligheter att bli en mer använd bearbetningsmetod i tillverkningsindustrin. I detta arbete, som tar an formen av en State of the Art Rapport, presenteras SLM-metod

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Neri, Marco. "Stylistic Design Engineering (SDE) applicato ad una berlina innovativa." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21979/.

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Il progetto Ford Eagle è un caso di studio sull’applicazione del metodo di progettazione strutturato, lo Stylistic Design Engineering (SDE), per la realizzazione di una nuova berlina elettrica innovativa. L’SDE è un approccio ingegneristico per la progettazione e lo sviluppo di progetti di design industriale, e trova una particolare applicazione nel mondo Automotive. Per raggiungere l’obiettivo di innovazione e sguardo verso il futuro, sono stati scelti i prodotti per auto del segmento E, in particolare a seguito della necessità di colmare una lacuna nel mercato del marchio Ford, che necessit

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Pooladvand, Koohyar. "Multifunctional Testing Artifacts for Evaluation of 3D Printed Components by Fused Deposition Modeling." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-dissertations/568.

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The need for reliable and cost-effective testing procedures for Additive Manufacturing (AM) is growing. In this Dissertation, the development of a new computational-experimental method based on the realization of specific testing artifacts to address this need is presented. This research is focused on one of the widely utilized AM technologies, Fused Deposition Modeling (FDM), and can be extended to other AM technologies as well. In this method, testing artifacts are designed with simplified boundary conditions and computational domains that minimize uncertainties in the analyses. Testing arti

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Parasa, Sairaj, and Mohammed Abujan Rehman Basha. "Adoption of Additive Manufacturing in the Medical Industry within Sweden : Stakeholder analysis in the process of adoption of AM in the medical industry and their influence on each other." Thesis, Uppsala universitet, Institutionen för samhällsbyggnad och industriell teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-448050.

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Additive manufacturing (AM) is a printing technology which can produce 3-dimensional solid object by adding layers of material from 3D model data. AM has numerous benefits and can bring a new industrial revolution. To have a smooth transition in the technology, organizations must consider involved stakeholders’ interests. However, different stakeholders have different interests and influences. As more affected stakeholders resist adopting new technology as it will affect the firm directly or indirectly. These diverse interests cause barriers to the adoption of technology. This research aims to

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Castro, Juan De Dios. "Engineered Nanocomposite Materials for Microwave/Millimeter-Wave Applications of Fused Deposition Modeling." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6643.

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A variety of high-permittivity (high-k) and low-loss ceramic-thermoplastic composite materials as fused deposition modeling (FDM) feedstock, based on cyclo-olefin polymer (COP) embedded with sintered ceramic fillers, have been developed and investigated for direct digital manufacturing (DDM) of microwave components. The composites presented in this dissertation use a high-temperature sintering process up to 1500°C to further enhance the dielectric properties of the ceramic fillers. The electromagnetic (EM) properties of these newly developed FDM composites were characterized up to the Ku-band

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Sanni, Onimisi Calistus. "Microstructural, Mechanical and Tribological Studies of Ti-6Al-4V Thin Plates Produced by EBM Process." Thesis, Högskolan Dalarna, Materialteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:du-35321.

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The titanium alloy, Ti-6Al-4V, is vastly studied and used in many applications because it has a transformation microstructure, which can be tailored for apt properties that are consistent up to 500°C. Compared to conventional steels, this alloy favours certain applications due to its high specific strength, hardenability, corrosion resistance, biocompatibility and weldability. Its weldability makes the alloy a good candidate for additive manufacturing (AM). Ti-6Al-4V parts are widely built by the AM process of electron beam melting (EBM). However, heat transfer remains crucial in EBM process.

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Taddei, Francesco. "Influence of pre-cure stage upon exothermic overshoot and defects from deposition of continuous CFRP tow in AM." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24994/.

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This study investigates the influence of the introduction of a pre-curing stage in Additive Manufacturing of continuous CFRP tows upon the exothermic overshoot and the defects generated during the deposition of the pre-cured material. This additive process aims at combining benefits from AM of CFRP laminates with the necessity of reducing the temperature overshoot during the cure of thermosetting polymers. Thermo-chemical properties of the epoxy resin XB3515 have been characterized. An FE model addressing the cure simulation has been also developed using the FE solver Abaqus, and validated. P

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Pepić, Sanjin, and Otto Ridemar. "Experimental and Theoretical Investigation of Selective Laser Melted Uddeholm Dievar ®." Thesis, KTH, Materialvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254247.

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The main problem encountered in this thesis is the lack of research and knowledge of selective laser melted-printing with Uddeholm Dievar®. This absence of information could cause issues regarding quality and properties of the alloy as well as uncertainty regarding an appropriate heat treatment cycle. This thesis mainly focuses on observing the changes that occur in the microstructure when Uddeholm Dievar® is manufactured through the additive manufacturing (AM) method known as selective laser melting (SLM). The SLM- method consists of a high-power laser that melts together thin layers of powde

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Xue, Boyu. "3D Printed Lattice Structure for Driveline Applications." Thesis, KTH, Materialvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-299270.

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Lattice structures have received a lot of attention as cellular materials in recent years because of their outstanding properties, such as high strength-to-weight ratio, heat transfer, energy absorption, and capability of improving noise, vibration and harshness (NVH) behavior. This type of structure received a boost from additive manufacturing (AM) technology, which can fabricate geometries in practically any shape. Due to economic and environmental requirements, lightweight design is increasingly used in automobile and construction equipment applications. NVH behavior is a crucial issue for

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Davis, Taylor Matthew. "Feasibility and Impact of Liquid/Liquid-encased Dopants as Method of Composition Control in Laser Powder Bed Fusion." BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/9256.

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Additive manufacturing (AM) – and laser powder bed fusion (LPBF) specifically – constructs geometry that would not be possible using standard manufacturing techniques. This geometric versatility allows integration of multiple components into a single part. While this practice can reduce weight and part count, there are also serious drawbacks. One is that the LPBF process can only build parts with a single material. This limitation generally results in over-designing some areas of the part to compensate for the compromise in material choice. Over-designing can lead to decreased functional effic

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