Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"material extrusion additive manufacturing"”.
-
Multi-Axis Material Extrusion Additive Manufacturing of Continuous Carbon Fiber Composites
Material extrusion is a common form of 3D printing that has historically been limited to producing prototypes, models, and low load-bearing parts. This is primarily because parts are manufactured layer-by-layer, resulting in poor adhesion along the build direction, and machines struggle to print …
-
Experimental Investigations into the Accuracy and Precision of Material Extrusion Additive Manufacturing
Material Extrusion Additive Manufacturing (ME AM) is one of the most popular AM technologies thanks to its ease of use and ability to produce complex shapes from a range of materials at a comparatively low cost. However, it is commonly characterised by poor quality, including unsatisfactory surface …
-
Process and Material Modifications to Enable New Material for Material Extrusion Additive Manufacturing
The overall goal of this work is to expand the materials library for the fused filament fabrication (FFF) material extrusion additive manufacturing (AM) process through innovations in the FFF process, post-process, and polymer composition. This research was conducted at two opposing ends of the …
-
Process/Structure/Property Relationships of Semi-Crystalline Polymers in Material Extrusion Additive Manufacturing
Material Extrusion additive manufacturing (MEX) represents the most widely implemented form of additive manufacturing due to its high performance-cost ratio and robustness. Being an extrusion process in its essence, this process enables the free form fabrication of a wide range of thermoplastic …
-
An Experimental Investigation into the Dimensional Quality of the Material Extrusion Additive Manufacturing Process
Material Extrusion 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 …
-
Machine learning-based stress-strain prediction and process parameter optimisation in material extrusion additive manufacturing
Material extrusion (MEX) additive manufacturing (AM) has emerged as a widely adopted method for fabricating complex polymer components, particularly in customised and lightweight engineering applications. However, the layer-by-layer deposition process inherent in this technique results in …
-
Additive Manufacturing of Commercial Polypropylene Grades of Similar Molecular Weight and Molecular Weight Distribution
Filament-based material extrusion additive manufacturing (MEAM) is an established technique in additive manufacturing (AM). However, semicrystalline polymers, such as polypropylene (PP), have limited commercial use in MEAM processes in the past due to their rapid crystallization kinetics and the …
-
Enhancing the Capabilities of Large-Format Additive Manufacturing Through Robotic Deposition and Novel Processes
… the capabilities of large-format, polymer material extrusion, additive manufacturing (AM) systems. Specifically, the aims of this research are to (1) Construct, and develop a robust workflow for, a large-format, robotic, AM system; (2) Develop an algorithm for determining and relaying …
-
Non-Covalent Interactions in the Design and Performance of Macromolecules for Biological Technologies
… numerous functionalities for modifying synthetic materials. Hydrogen bonding, ionic interactions, and metal-ligand interactions highlight the supramolecular interactions examined in this work. Their broad utility in the fields of nanoparticle formulations, polymer chemistry, and additive …
-
Additive Manufacturing of Functional Materials for Biomedical Devices
… their full potential. Rapid advancements in materials, manufacturing, and structural design are making personalised, comfortable, and lightweight medical devices possible. In this thesis, material extrusion additive manufacturing is used to enhance the functionality of polymers for the …
-
Process-Structure-Property Relationships of Cellulose Derivative/Thermoplastic Urethane Polymer Composites
… alternatives to conventional petroleum-based materials, offering advantages such as biodegradability, mechanical reinforcement, and tunable functionality. These composites hold immense potential for next-generation applications in soft robotics, flexible electronics, and adaptive structures. …
-
Enabling New Material and Process Capabilities for Ultraviolet-Assisted Direct Ink Write Additive Manufacturing via Exploration of Material Rheology and Reactivity
… Direct Ink Write (UV-DIW) is a material extrusion additive manufacturing (AM) technology in which a viscous ink, often at room temperature, is selectively extruded through a translating nozzle to selectively deposit material. The extruded ink is solidified via UV irradiation …