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    Browsing 2018 International Solid Freeform Fabrication Symposium by Issue Date 
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    • 2018 International Solid Freeform Fabrication Symposium
    • Browsing 2018 International Solid Freeform Fabrication Symposium by Issue Date
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    • International Solid Freeform Fabrication Symposium
    • 2018 International Solid Freeform Fabrication Symposium
    • Browsing 2018 International Solid Freeform Fabrication Symposium by Issue Date
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    Browsing 2018 International Solid Freeform Fabrication Symposium by Issue Date

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        Finite Element Modeling of Metal Lattices Using Commercial FEA Platforms 

        Arrieta, E.; Mireles, Jorge; Stewart, C.; Carrasco, C.; Wicker, R. (University of Texas at Austin, 2018)
        The introduction of geometrical features into standard solids result in cellular materials with unique performances. The deformation mechanisms originated by the introduced geometry may not be entirely captured by the ...
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        Rheological, In Situ Printability and Cell Viability Analysis of Hydrogels for Muscle Tissue Regeneration 

        Ramesh, Srikanthan; Gerdes, Sam; Lau, Sharon; Mostafavi, Azadeh; Kong, Zhenyu; Johnson, Blake N.; Tamayol, Ali; Rao, Prahalada; Rivero, Iris V. (University of Texas at Austin, 2018)
        Advancements in additive manufacturing have made it possible to fabricate biologically relevant architectures from a wide variety of materials. Hydrogels have garnered increased attention for the fabrication of muscle ...
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        Fabrication of Ceramic Parts Using a Digital Light Projection System and Tape Casting 

        Wang, X.; de Caussin, D. (University of Texas at Austin, 2018)
        In this paper, fabrication of ceramic parts using projection-based stereolithography by curing the mixture of ceramic and photopolymers was investigated. A stereolithography device with a UV LED projection light source ...
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        Hybrid Manufacturing with FDM Technology for Enabling Power Electronics Component Fabrication 

        Coronel, Jose L. Jr; Billah, Kazi Md Masum; Acosta Carrasco, Carlos F.; Barraza, Sol A.; Wicker, Ryan B.; Espalin, David (University of Texas at Austin, 2018)
        The introduction of Kapton coated wires within a printed substrate presents the opportunity to design and fabricate power electronics components. Preventing dielectric breakdown of the printed substrate, the ultrasonic ...
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        Fabrication of Support-Less Engineered Lattice Structures via Jetting of Molten Aluminum Droplets 

        Jayabal, Dinesh Krishna Kumar; Zope, Khushbu; Cormier, Denis (University of Texas at Austin, 2018)
        Magneto Hydro Dynamic (MHD) jetting is a promising new metal additive manufacturing technique that employs on-demand jetting of molten metal droplets onto a moving substrate. A particularly unique aspect of the process ...
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        On the Mechanical Behavior of Additively Manufactured Asymmetric Honeycombs 

        Casanova, Lucas; Anitha, Vineeth Vijayan; Kadway, Nikhil; Gandhi, Arpit; Le, Thao; Lee, Christine; Bhate, Dhruv (University of Texas at Austin, 2018)
        From a design perspective, there are four decisions that need to be made when integrating cellular materials such as lattices and honeycombs into a structure: selection of the unit cell type, distribution of the size of ...
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        Additive Manufacturing of Metal Bandpass Filters for Future Radar Receivers 

        Grothaus, Bradley; Huck, Dane; Sutton, Austin (University of Texas at Austin, 2018)
        Selective laser melting (SLM) is a powder-bed fusion (PBF) process that bonds successive layers of powder with a laser to create components directly from computer-aided design (CAD) files. The additive nature of the SLM ...
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        Binder Jetting Additive Manufacturing of Water-Atomized Iron 

        Rishmawi, I.; Salarian, M.; Vlasea, M. (University of Texas at Austin, 2018)
        Binder jetting additive manufacturing (BJAM) was deployed to processing of low-cost, water-atomized pure iron powder. Surface morphology and particle size distribution of the powder were fully characterized using scanning ...
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        Material Characterization for Lightweight Thin Wall Structures Using Laser Powder Bed Fusion Additive Manufacturing 

        Dobson, Sean; Wu, Yan; Yang, Li (2018)
        In this study the geometry-process-material characteristics of the Ti6Al4V thin wall features fabricated by the EOS M270 laser melting powder bed fusion (LM-PBF) additive manufacturing (AM) was investigated. Samples with ...
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        Viscosity Control of Pseudoplastic Polymer Mixtures for Applications in Additive-Manufacturing 

        Vaish, Apoorv; Yang Lee, Shien; Valdivia Alvarado, Pablo (University of Texas at Austin, 2018)
        Various additive manufacturing (AM) processes exploit the rheological properties of non-Newtonian (e.g. pseudoplastic) polymers for stability and feature realization. For embedded 3D-printing (e3DP) and direct ink writing ...
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        Mechanical Behavior of Additively Manufactured 17-4 PH Stainless Steel Schoen Gyroid Lattice Structure 

        Shrestha, Rakish; Sterling, Amanda; Lessel, Brandon; Phan, Nam; Sereshk, Mohammad Reza Vaziri; Shamsaei, Nima (University of Texas at Austin, 2018)
        In this study, the mechanical properties of additively manufactured 17-4 PH stainless steel Schoen Gyroid lattice structures were investigated under monotonic tensile loading. Based on the results obtained from the ...
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        Increasing Interlaminar Strength in Large Scale Additive Manufacturing 

        Roschli, Alex; Duty, Chad; Lindahl, John; Post, Brian K.; Chesser, Phillip C.; Love, Lonnie J.; Gaul, Katherine T. (University of Texas at Austin, 2018)
        Interlaminar strength of extrusion-based additively manufactured parts is known to be weaker than the strength seen in the printed directions (X and Y). With Big Area Additive Manufacturing (BAAM), large parts lead to ...
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        Precast Concrete Models Fabricated with Big Area Additive Manufacturing 

        Roschli, Alex; Post, Brian K.; Chesser, Phillip C.; Sallas, Matt; Love, Lonnie J.; Gaul, Katherine T. (University of Texas at Austin, 2018)
        The traditional process of making precast concrete molds requires significant manual labor. The molds are made using hardwood, cost tens of thousands of dollars, and take weeks to build. Once built, a mold will last 5-10 ...
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        Stereolithography-Based Manufacturing of Molds for Directionally Solidified Castings 

        Catalanotto, A.M.; Ware, L.G.; Chagolla, J.A.; Suzuki, D.H.; Cordero, Z.C. (University of Texas at Austin, 2018)
        Directionally solidified components, such as single crystal turbine blades, are typically grown using shell molds prepared using a lost wax process that begins with injection-molded wax positives. These positives have ...
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        Machine Learning for Modeling of Printing Speed in Continuous Projection Stereolithography 

        He, Haiyang; Yang, Yang; Pan, Yayue (University of Texas at Austin, 2018)
        Continuous projection stereolithography technologies, also known as the Continuous Liquid Interface Production (CLIP), can achieve build speeds an order of magnitude faster than conventional layer-by-layer stereolithography ...
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        Curvature-Based Segmentation of Powder Bed Point Clouds for In-Process Monitoring 

        Law, Andrew Chung Chee; Southon, Nicholas; Senin, Nicola; Stavroulakis, Petros; Leach, Richard; Goodridge, Ruth; Kong, Zhenyu (University of Texas at Austin, 2018)
        This paper presents a curvature-based analysis of point clouds collected in-process with fringe projection in a polymer powder bed fusion process. The three-dimensional point clouds were obtained from outside of the build ...
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        Non-Destructive Characterization of Additively Manufactured Components Using X-Ray Micro-Computed Tomography 

        Dietrich, Stefan; Englert, Lukas; Pinter, Pascal (University of Texas at Austin, 2018)
        Quality control and microstructure characterization are essential corner stones of the process optimization through the understanding of process-microstructure-relations in additive manufacturing. The scope of this work ...
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        Digitally-Driven Micro Surface Patterning by Hybrid Manufacturing 

        Smith, Matthew A.A.; Fry, Nicholas R.; Kay, Robert W.; Harris, Russell A. (University of Texas at Austin, 2018)
        Aerosol Jet printing is a versatile direct-write method allowing selective deposition and alteration of surface chemistry on a variety of substrates, making it suitable for incorporation in a range of hybrid manufacturing ...
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        Design Guidelines for a Software-Supported Adaptation of Additively Manufactured Components with Regard to a Robust Production 

        Lammers, S.; Tominski, J.; Magerkohl, S.; Künneke, T.; Lieneke, T.; Zimmer, D. (University of Texas at Austin, 2018)
        The design of additively manufactured components requires a rethinking in the design process. This is inhibited by a lack of knowledge about additive manufacturing technologies. For this reason, a large number of design ...
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        A Sustainable Additive Approach for the Achievement of Tunable Porosity 

        Lau, Sharon; Yeazel, Taylor; Miller, Ana; Pfister, Nathan; Rivero, Iris V. (University of Texas at Austin, 2018)
        This study aims to design a green additive approach for the fabrication of controlled porosity on hydrogels. Although hydrogels have been of common use in tissue engineering, the generation of controllable porosity remains ...

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