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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"Fused deposition modelling"”.
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Fused deposition modelling three-dimensional printing of solid dosage forms
… Among commercially available models, fused deposition modelling 3D-printing (FDM-3DP) has shown the potential to fabricate objects with various internal structures and the ability to introduce multiple specific functionalities. This thesis’s main aim was to understand printability in …
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Characterization and processing of composite PP/UHMWPE filament for fused deposition modelling application
… to reconstruct large skull bone defect using Fused Deposition Modelling (FDM). This effort aimed to reduce the cost and processing time of manufacturing of a product like this and make it available to all. The effects of addition UHMWPE on the mechanical, thermal, rheology and toxicity of PP …
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Characterization and development of polycaprolactone (PCL)/montmorillonite (MMT)/hydroxapaptite (HA) nano-composites for fused deposition modelling (FDM) process
… of polymer nanocomposites filament wire for Fused Deposition Modelling (FDM) was investigated. The polycaprolactone (PCL) filled montmorillonite (MMT) and Hydroxyapaptite (HA) composites were prepared by melting and compounding using a single screw extruder. The mechanical properties were …
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Kajian terhadap sifat mekanik bagi jenis corak pengisian dalam proses pembuatan tiga demensi
… Replicator 2 machine. This machine apply Fused Deposition Modelling (FDM) technology where the 3D model fabricate with different infill pattern such hexagonal, linear, marrocanstar and catfill. The determination of percentage infill is 20%, 40%, 60% and 80%. All spesimen are fabricate …
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3D Printing on Textile Fabrics Based on Material Extrusion
… are SLS (Selective Laser Sintering), FDM (Fused Deposition Modelling) and SLA (Stereolithography). Among them, FDM printing technology involves a process where the thermoplastic material is melted and extruded through printing nozzle in a pattern to create the designed object layer by …
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The Design Modelling of PEEK Composite for Bone Implants
… emulate natural bone structures. By adopting fused deposition modelling (FDM) techniques, and have developed porous hip and femur bone implants with homogenization lattice structures. The PEEK was enhanced through extrusion, spraying and coating deposition methods, incorporating biocomposites …
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Design, Fabrication, and Testing of a 3D Printer Based Microfluidic System
… mold, (device 2), was fabricated from the use of fused deposition modeling (FDM) 3D printing. The pumping efficiency of the PDMS devices was analyzed through the characterization of the micro-pumps flowrate with respect to the pumps driving pressure and the actuation frequency. Tested at a driving …
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Towards Advancement of Continuous Fiber Composite Additive Manufacturing
… with composites. AM technologies, including fused deposition modelling in particular, have undergone rapid growth within industry and academia in the last several decades; new materials are being developed frequently. However, contributions from the printing process to the “printed” material …
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Additive Manufacturing of lignocellulosic composites for riverine resilience
… during and post-flooding remains a challenge. Fused deposition modelling can enable lightweight components to be produced with customised designs and functionalities for use in construction panels including in flood risk zones. Unlike other 3D printing processes, FDM involves only melting and …
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Ink-gel simultaneous embedded 3D printing
… 3D printer modified from an existing low-cost fused deposition modelling type 3D printer. To create parts using embedded 3D printing in the past, a support bath needed to be prepared before printing and the printed material nozzle needed to be longer than the shortest axis of the part. With …
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Interfashionality: Body-oriented Parametric Design and Parametric Thinking 2.0 for 3D-printed Textiles and Fashion
… mathematical approaches, such as parametric modelling and parametric tools (1.3), which enable a wide range of design options (often similar and relational) to be generated by changing the variables of a computational definition/algorithm; 2) describe a new oppositional, relational way of …
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Advanced Manufacturing and Dielectric Material Characterization Techniques for High-Temperature mm-Wave Antennas
… materials is relatively recent. Unlike fused deposition modelling (FDM) and inkjet printing (IJP) for thermoplastics and conductive pastes respectively, high temperature materials, dominated by ceramics, are typically unavailable in the forms that are compatible with the methods above. …
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Implications of Microorganisms in Future Crewed Missions to Mars
… improved flexibility. The use of such PHB in fused deposition modelling 3D printing to create tools was also demonstrated in principle by use of commercially available blends. An improvement to the starch harvesting and hydrolysis stage was attempted with novel genetic tools based on the …
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An Experimental Investigation into the Dimensional Quality of the Material Extrusion Additive Manufacturing Process
… Additive Manufacturing (ME AM) also known as fused deposition modelling is a popular manufacturing process. It is seen as an attractive alternative to many conventional manufacturing techniques due to its cost effectiveness, ease of adoption, and the ability to produce complex geometries. …
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Machine learning-based stress-strain prediction and process parameter optimisation in material extrusion additive manufacturing
… applications. However, the layer-by-layer deposition process inherent in this technique results in considerable variability in mechanical performance. Among the most critical challenges is the difficulty in accurately predicting and controlling the full stress-strain behaviour of the …
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Design and optimization of lattice structures and mechanical metamaterials for additive manufacturing
… applications. This study proposes various modelling strategies, based on explicit, implicit, and parametric functions, for the design of lattice structures and mechanical metamaterials. The responses of these structures are investigated through numerical simulations and experimental …
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3D Printing in Cosmetics: Investigating New Skin Delivery Platform
… objects through a precise, layer-by-layer deposition of materials. While its potential in pharmaceutical manufacturing is well acknowledged, its application in the cosmetics industry remains underexplored. This study investigates the use of 3D printing in developing innovative, effective …
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Experimental Investigations into the Accuracy and Precision of Material Extrusion Additive Manufacturing
… positional error or from the extrusion and deposition of material itself. Positional error was determined in terms of fixed backlash and variable scale components. This showed that backlash errors were typically of the order of 0.05mm, and scale errors were undersized by up to 0.6% …
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Investigation of a heirarchical collagen scaffold/3D printed lattice structure designed for use in total knee replacements
… materials was therefore proposed. A fused deposition modelling (FDM) 3D printed poly ether ketone ketone (PEKK) lattice structure formed the load bearing component of the construct. This contained a lyophilised collagen scaffold filling the lattice voids, to encourage …
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Carbon-based polymer nanocomposites for 3D-printing
… the performances of 3D-printed parts obtained by fused deposition modeling (FDM). The attention is focused on carbon-based nanomaterials incorporated into an acrylonitrile–butadiene–styrene (ABS) polymer by a solvent-free process. ABS-based nanocomposites were prepared by incorporating different …