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.
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Showing 1 to 11 of 11 for “"PolyJet"”.
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Design of Kresling inspired architected materials by using Polyjet technique
… structures and the immense potential that Polyjet (PJ) 3D printing technique offers, this thesis delves into fully harnessing the remarkable characteristics of 3D printed PJ Kresling architected materials, such as tunable energy absorption and multi-stable states. Initially, a quantitative …
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The Effects of Quantum Dot Nanoparticles on Polyjet Direct 3D Printing Process
… response (the visible light emitted by the QDs). PolyJet, the AM process selected for this work, utilizes inkjet to deposit a photopolymer into layers, which are then cured with a UV light. An investigation into the visibility of the QDs within the printed PolyJet media revealed that the QDs …
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Hybridization of PolyJet and Direct Write for the Direct Manufacture of Functional Electronics in Additively Manufactured Components
… limited to single material AM processes. The PolyJet process is assessed for hybridization with DW because of its multi-material capabilities. The PolyJet process is capable of simultaneously depositing different materials, including rigid and elastomeric photopolymers, which enables the …
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Design for Additive Manufacturing Considerations for Self-Actuating Compliant Mechanisms Created via Multi-Material PolyJet 3D Printing
… actuating elements within material jetted parts. PolyJet material jetting is the focus of this dissertation research as it is one of the only AM processes capable of utilizing multiple material phases (e.g., stiff and flexible) within a single build, making it uniquely qualified for manufacturing …
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Characterization and Modeling of the Thermal Properties of Photopolymers for Material Jetting Processes
… is converted into heat. Embedding electronics in PolyJet parts is of particular interest since material jetting additive manufacturing has the ability to deposit multiple, functionally graded materials on a pixel by pixel basis. Although there is existing literature on other PolyJet material …
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Advanced prototyping of variable impedance prosthetic sockets for trans-tibial amputees : polyjet matrix 3D printing of comfortable prosthetic sockets using digital anatomical data
This work, supported by the Media Lab Consortium, evaluates the design of a Variable Impedance Prosthetic (VIPr) socket for a transtibial amputee using computer-aided design and manufacturing (CAD/CAM). Compliant features are seamlessly integrated into a 3D printed socket to achieve lower interface …
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Collapsibility behaviour of ABS P400 and PMMA used as sacrificial pattern in direct investment casting process
… which are Fused Filament Fabrication (FFF) and Polyjet technique. There were three different types of internal structures which are hollow, square and hexagon patterns. The thermal properties of the materials were studied by thermogravimetry analyzer (TGA) and linear thermal expansion. The …
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A comparative study of rapid prototyping systems
… systems: Selective Laser Sintering (SLS), PolyJet, Fused Deposition Modeling (FDM), and 3D Printing (3DP) at the University of Missouri, Columbia. The results can be used as a preliminary guide to help users determine optimal strategies for rapid prototyping system selection.
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An Approach to Incorporate Additive Manufacturing and Rapid Prototype Testing for Aircraft Conceptual Design to Improve MDO Effectiveness
… of data quality, time, and cost. FDM(TM) and PolyJet AM processes were used for model production at low cost and time. Several models from a representative tailless configuration, ICE 101, were printed and evaluated for strength, cost and time of production. Furthermore, a NACA 0012 model with …
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Fracture and Friction Characterization of Polymer Interfaces
… resistance of AM materials produced by the PolyJet process. Test standards established for mode I fracture testing of adhesive joints are adapted to evaluate the fracture resistance and interface between two printed acrylic-based photopolymers. Significant differences in fracture energy and …
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Development of 3D-Printed Patient Specific Bolus For Clinical Use In to tal Scalp Irradiation
<p>Total scalp irradiation (TSI) is a specialized radiation therapy technique that aims to deliver a uniform dose to the entire scalp. Original electron-based TSI techniques had limited homogeneity due to hot and cold spots created at field junctions due to the multiple matched fields that were …