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Dissertations / Theses on the topic '3D Printed Metals'

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1

Ghodratighalati, Mohamad. "Multiscale Modeling of Fatigue and Fracture in Polycrystalline Metals, 3D Printed Metals, and Bio-inspired Materials." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/104944.

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The goal of this research is developing a computational framework to study mechanical fatigue and fracture at different length scales for a broad range of materials. The developed multiscale framework is utilized to study the details of fracture and fatigue for the rolling contact in rails, additively manufactured alloys, and bio-inspired hierarchical materials. Rolling contact fatigue (RCF) is a major source of failure and a dominant cause of maintenance and replacements in many railways around the world. The highly-localized stress in a relatively small contact area at the wheel-rail interfa
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2

Godbey, Brady Blackburne. "Surface finish control of 3D printed metal tooling." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202498467/.

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3

Joshi, Sharmad Vinod. "Characterization of 3D printed metal oxide composite polymers." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1595511295182678.

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4

Gante, Lokesha Renukaradhya Karthikesh. "Metal Filament 3D Printing of SS316L : Focusing on the printing process." Thesis, KTH, Maskinkonstruktion (Avd.), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-259686.

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As a cutting edge manufacturing methodology, 3D printing or additive manufacturing (AM) brings much more attention to the fabrication of complex structure, especially in the manufacturing of metal parts.A number of various metal AM techniques have been studied and commercialized. However, most of them are expensive and less available, in comparison with Selective Laser Melting manufactured stainless steel 316L component.The purpose of this Master Thesis is to introduce an innovative AM technique which focuses on material extrusion-based 3D printing process for creating a Stainless Steel 316L p
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Haverkos, Stephen M. "FRICTIONAL PROPERTIES OF NOVEL BRACKET SYSTEMS: AN IN-VITRO STUDY." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/5770.

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Orthodontic brackets undergo resistance during sliding that includes classical friction, binding, and notching. Current bracket systems are hampered by these challenging forces. As a result, the clinician usually needs to apply additional forces to overcome the resistance which increases the risk of root resorption and discomfort for the patient. This study evaluated frictional properties of a novel bracket that had polytetrafluoroethylene (Teflon™) coated rollers in its design. Five types of brackets (n = 10, each), including a passive self-ligating bracket, a traditional ligated bracket, a t
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Bousquet, Anna. "Additiv tillverkning i metall och topologioptimering." Thesis, Mälardalens högskola, Innovation och produktrealisering, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-36310.

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This thesis project was conducted as a case study at Scania CV, a manufacturer of trucks, buses and industrial and marine engines. The project aimed to investigate how topology optimization can be used to design end products for metal additive manufacturing (AM). The main research questions for the project was: How can topology optimization be used to design parts for metal additive manufacturing? Which gave rise to further research questions: Which parts are suitable for metal additive manufacturing? Which factors has to be considered when designing end products for metal additive manufacturi
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7

(11002041), Harshal Ghanshy Dhamade. "UNIFIED SECONDARY AND TERTIARY CREEP MODELING OF ADDITIVELY MANUFACTURED NICKEL-BASED SUPERALLOYS." Thesis, 2021.

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<div>Additively manufactured (AM) metals have been increasingly fabricated for structural applications. However, a major hurdle preventing their extensive application is lack of understanding of their mechanical properties. To address this issue, the objective of this research is to develop a computational model to simulate the creep behavior of nickel alloy 718 manufactured using the laser powder bed fusion (L-PBF) additive manufacturing process. A finite element (FE) model with a subroutine is created for simulating the creep mechanism for 3D printed nickel alloy 718 components.</div><div><b
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8

Ayeni, Oyedotun Isaac. "Sintering and Characterizations of 3D Printed Bronze Metal Filament." Thesis, 2018. http://hdl.handle.net/1805/17962.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Metal 3D printing typically requires high energy laser or electron sources. Recently, 3D printing using metal filled filaments becomes available which uses PLA filaments filled with metal powders (such as copper, bronze, brass, and stainless steel). Although there are some studies on their printability, the detailed study of their sintering and characterizations is still missing. In this study, the research is focused on 3D printing of bronze filaments. Bronze is a popular metal for many important uses. The objectives of this resear
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9

(5931011), Oyedotun Ayeni. "Sintering and Characterizations of 3D Printed Bronze Metal Filament." Thesis, 2019.

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<p>Metal 3D printing typically requires high energy laser or electron sources. Recently, 3D printing using metal filled filaments becomes available which uses PLA filaments filled with metal powders (such as copper, bronze, brass, and stainless steel). Although there are some studies on their printability, the detailed study of their sintering and characterizations is still missing.</p> <p>In this study, the research is focused on 3D printing of bronze filaments. Bronze is a popular metal for many important uses. The objectives of this research project are to study the optimal processing cond
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10

LIN, TING-HAN, and 林廷翰. "Research on metal 3D printer with pneumatic extrusion." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/13495069740932038654.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>104<br>Nowadays, there are two kinds of metal additive manufacturing technology, one is the powder bed fusion technology, the other is the direct energy deposition technique, both of the two working principle let metal powder stack at an appropriate position, and use laser light, etc. to make the powder melt to bond to each other. The printing machine is expensive due to these high energy device, so this study desire to develop a low-cost metal 3D printing equipment. This study uses the principle of Fused Deposition Modeling (FDM) with the material which is 316 s
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11

Melo, Pedro Jorge Cortesão Vieira de. "3D Printed Adsorbent Materials – A tool for climate change mitigation?" Master's thesis, 2017. http://hdl.handle.net/10362/24748.

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In recent decades, an increase of research has been carried out on adsorbents for the adsorption of gases that contribute to the increase of the greenhouse effect and damaging of the ozone layer, as well as on the structuring of these adsorbents for pressure swing adsorption (PSA), using traditional techniques such as mold extrusion, tape casting and freeze casting. A modern 3D printing technique was applied in the formulation of a metal organic framework (MOF) adsorbent in monolithic and cylindrical geometries to reduce the pressure drop in adsorption columns related to the use of the adsorb
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12

Golub, Michael. "Characterization of tensile and hardness properties and microstructure of 3D printed bronze metal clay." Thesis, 2017. https://doi.org/10.7912/C2QS8X.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Bronze is a popular metal for many important uses. Currently, there are no economical 3D printers that can print Bronze powders. A recent product, Bronze Metal Clay (BMC) has arrived. Additionally, commercial metal 3D printers require laser or electron beam sources, which are expensive and not easily accessible. The objective of this research is to develop a new two-step processing technique to produce 3D printed metallic component. The processing step includes room temperature 3D printing followed by high-temperature sintering. Sinc
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13

(8812424), Tejesh Charles Dube. "Experimental and Modeling Study of Gas Adsorption in Metal-Organic Framework Coated on 3D Printed Plastics." Thesis, 2020.

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<div> <p>Metal-organic frameworks (MOFs) are a class of compounds consisting of metal ions or clusters coordinated to organic ligands in porous structure forms. MOFs have been proposed in use for gas adsorption, purification, and separation applications. This work combines MOFs with 3D printing technologies, in which 3D printed plastics serve as a mechanical structural support for MOFs powder, in order to realize a component design for gas adsorption. The objective of the thesis is to understand the gas adsorption behavior of MIL-101 (Cr) MOF coated on 3D printed PETG, a glycol modified versi
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14

Dube, Tejesh Charles. "Experimental and Modeling Study of Gas Adsorption in Metal-Organic Framework Coated on 3D Printed Plastics." Thesis, 2020. http://hdl.handle.net/1805/22738.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Metal-organic frameworks (MOFs) are a class of compounds consisting of metal ions or clusters coordinated to organic ligands in porous structure forms. MOFs have been proposed in use for gas adsorption, purification, and separation applications. This work combines MOFs with 3D printing technologies, in which 3D printed plastics serve as a mechanical structural support for MOFs powder, in order to realize a component design for gas adsorption. The objective of the thesis is to understand the gas adsorption behavior of MIL-101 (Cr) MOF
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15

Dube, Tejesh C. "Experimental and Modeling Study of Gas Adsorption in Metal-Organic Framework Coated on 3D Printed Plastics." Thesis, 2020. http://hdl.handle.net/1805/22738.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Metal-organic frameworks (MOFs) are a class of compounds consisting of metal ions or clusters coordinated to organic ligands in porous structure forms. MOFs have been proposed in use for gas adsorption, purification, and separation applications. This work combines MOFs with 3D printing technologies, in which 3D printed plastics serve as a mechanical structural support for MOFs powder, in order to realize a component design for gas adsorption. The objective of the thesis is to understand the gas adsorption behavior of MIL-101 (Cr) MOF
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16

Jhang, Jhih-Ren, and 張智任. "Applications of Creative Design、3D Printer and Multi-axial Machining to Metal and Non-Mental Bracelets." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/23hrb2.

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碩士<br>正修科技大學<br>機電工程研究所<br>103<br>Jewelry design is as the core element, it can set off beauty of gems. Jewelry design is also focus of casting and processing. Due to the irregular surface appearance simple surfaces of jewelry, so design, casting and multi-axis machining of jewelry are difficulty. The objective of this study is jewelry rings, beads and bracelets designed by 3D printing, casting and machining of multi-axis tool paths planning. The software design use the Rhino Gold finished product 3D printing, rings, beaded design to silicon mold casting as the main direction. The bracelets i
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17

Marques, Tiago Matias. "Development of a strategy for defining the orientation of a deposition tool in 3D print jobs - algorithms taking into account metal printing." Master's thesis, 2020. http://hdl.handle.net/10316/93923.

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Dissertação de Mestrado Integrado em Engenharia Mecânica apresentada à Faculdade de Ciências e Tecnologia<br>Graças aos desenvolvimentos tecnológicos, as Revoluções Industriais levaram a um aumento do nível de automação nas empresas através da implementação de novos métodos de produção e da introdução de células robotizadas nas linhas de produção. No entanto, alguns sectores, nomeadamente o sector da construção metálica, ainda se baseiam em processos convencionais que requerem a utilização de uma grande quantidade de mão-de-obra humana.Esta tese apresenta a contribuição para o desenvolvimento
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