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Showing 1 to 20 of 53 for “"Fused Filament Fabrication"”.
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A joule heating mechanism for high-speed fused filament fabrication
Extrusion-based additive manufacturing, known as fused filament fabrication (FFF), is one the most accessible methods of rapid prototyping, capable of handling a wide variety of engineering thermoplastics. Productivity limitations hinder the further application of FFF to both prototyping and …
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Toolpath Planning Methodology for Multi-Gantry Fused Filament Fabrication 3D Printing
… industries manufacture and prototype products. Fused filament fabrication (FFF) is one of the most popular processes in AM as it is inexpensive, requires low maintenance, and has high material utilization. However, the biggest drawback that prevents FFF printing from being widely implemented in …
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Modeling fused filament fabrication machine height accuracy through layer thickness variation
… was done on New Valance Robotics' two fused deposition modeling machine versions, the NVPro and the NVPro High-temp. Results suggested that the layer thickness approach was a viable technique for predicting total part height error. The compensation model for PLA parts was also tested …
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Height error mapping and compensation for a fused filament fabrication machine
… height error mapping and compensation method for fused lament fabrication machines ("3D printers") is developed. In the proposed method, an error mapping artifact is produced and inspected using a coordinate measuring machine to determine height errors at 81 discrete points in the machine's work …
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Creation of controlled polymer extrusion prediction methods in fused filament fabrication. An empirical model is presented for the prediction of geometric characteristics of polymer fused filament fabrication manufactured components
… a model for the procedures of manufacturing Fused Filament Fabrication (FFF) components by calculating required process parameters using empirical equations. Such an empirical model has been required within the FFF field of research for a considerable amount of time and will allow for an …
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Modelling material behavior for additively manufactured metals and polymers produced by fused filament fabrication
… as automotive, aerospace, and medical sectors. Fused Filament Fabrication (FFF) stands out as a prominent AM technique that builds the product layer by layer. Metal Fused Filament Fabrication (MFFF) employs a filament composed of metal powder and a polymer binder. The MFFF process involves three …
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Fused filament fabrication to manufacture three- and four-dimensional objects made of shape memory polymers
… into 3D objects. Amidst various AM technologies, fused filament fabrication (FFF) is a hot-melt extrusion-based 3D printing process and is widely prevalent. The doctoral thesis aims to utilize self-synthesized and commercially available TPUs for FFF and to specifically influence the printing …
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Modification of Fused Filament Fabrication Printer to Print High Temperature Thermoplastics to Improve Z-Strength
A fused filament fabrication (FFF) desk top three dimensional printer was modified with a pre-deposition heating method using an infrared heat lamp in an omega shape around the printing nozzle to print high temperature materials and improve the tensile and flexural properties. The FFF additive …
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Generation of Multi-Scale Thermoplastic Composites for Use in Injection Molding and Fused Filament Fabrication
… extending the technology to dual-extrusion and fused filament fabrication (FFF) and obtain high-performance multi-scale WTC products. This dissertation initially focused on investigating the processing conditions, in particular mixing histories and processing temperature profiles, of generating …
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Effects of Fused Filament Fabrication Process Variables on Microstructural Alignment and Intra-layer Properties in PLLA
… structures from thermoplastics. Conventional fused filament fabrication (FFF) is used widely and forms objects through layer-by-layer deposition. However, there is often a need for thin support structures based on single print layers, for example in the medical fields of hernial meshes and …
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Printing on Objects: Curved Layer Fused Filament Fabrication on Scanned Surfaces with a Parallel Deposition Machine
… While the technology for the most common type, Fused Filament Fabrication (FFF), has systematically improved and sales have increased, fundamentally, the capabilities of the machines have remained the same. FFF printers are still limited to depositing layers onto a flat build plate. This makes …
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Improving the strength of fused filament fabrication parts by non-planar alignment of material extrusion wih stress vectors
Fused Filament Fabrication (FFF), a prominent additive manufacturing technique, has been limited in producing end-use parts due to significant anisotropy and weak interlayer bonding. This thesis presents a novel approach to improve mechanical properties of FFF-produced parts through non-planar …
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Exploring emerging technologies for innovative structural solutions: deep energy method, fused filament fabrication, and hoof wall-inspired design
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01
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Generation of Thermotropic Liquid Crystalline Polymer (TLCP)-Thermoplastic Composite Filaments and Their Processing in Fused Filament Fabrication (FFF)
One of the major limitations in Fused Filament Fabrication (FFF), a form of additive manufacturing, is the lack of composites with superior mechanical properties. Traditionally, carbon and glass fibers are widely used to improve the physical properties of polymeric matrices. However, the blending …
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Analýza mechanických vlastností plastových vzorků zhotovených technologií 3D tisku
… byly normalizované vzorky, zhotovené technologií Fused Filament Fabrication, analyzovány pomocí mechanických zkoušek (zkouška tahem a zkouška tvrdosti). Část vzorků byla vystavena vybraným degradačním faktorům, zvolených na základě vypracované teoretické části. Vyhodnocované parametry z …
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Optimalizace procesu 3D tisku oxidu hlinitého metodou Direct Ink Writing
… materiálů. V experimentální části byla běžná Fused Filament Fabrication 3D tiskárna přestavěna a přenastavena na DIW technologii. Dále byly připraveny keramické pasty na bázi oxidu hlinitého a karboxymethylcelulózy, která sloužila jako gelační činidlo. Tiskárna byla úspěšně použita k tisku …
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Additive Manufacturing for Phase Change Thermal Energy Storage and Management
… of composite thermoplastic/phase change material filaments for fused filament fabrication 3D-printing, and their subsequent use to 3D-print advanced heat exchange topologies with intricate geometric features.</p>
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Manufacturing Strain Sensor Via Printed Electronics Onto 3D Printed Substrates
… such as digital customization, reduced cost and fabrication time, and non-contact printing. These features enable inkjet printing to fabricate on novel, diverse substrates such as 3D printed substrates. 3D printing technology builds 3D structures with freedom of design, mass customization, low …
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Characterizing tensile loading responses of 3D printed samples
… a number of 3D printed samples created through Fused Filament Fabrication (FFF). Printed samples were made from ABS or PLA plastic. A range of infill densities from 25% to 100% were tested for each material. Additionally, samples were printed with layers at several angles relative to the tensile …
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