Browsing 2006 International Solid Freeform Fabrication Symposium by Title
Now showing items 35-54 of 68
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Laser Printing of Polymeric Materials
(2006-09-14)Electrophotography, the basis of photocopying and laser printing, is a reliable and well developed method of precisely depositing fine powders to form text or images. The process is highly adaptable to different types ... -
Layer Formation Studies in Selective Laser Melting of Steel Powders
(2006)This paper advances the findings of the selective laser melting (SLM) of tool steel and stainless steel powders. The distinguishing feature is the melting of single layers in deep powder beds by a continuous CO2 laser. ... -
Localized Preheating Approaches for Reducing Residual Stress in Additive Manufacturing
(2006)Uniform preheating can be used to limit residual stress in the solid freeform fabrication of relatively small parts. However, in additive manufacturing processes, where a feature is deposited onto a much larger part, ... -
Mass Customization of Foot Orthosis for Rheumatoid Arthritis
(2006)Rheumatoid arthritis (RA) is an inflammatory disease, which can cause pain, stiffness, and swelling in the joints of hands and feet. The foot is a major site for RA involvement and a major source of disability resulting ... -
Material Issues of the Metal Printing Process, MPP
(2006)The metal printing process, MPP; is a novel Rapid Manufacturing process under development at SINTEF and NTNU in Trondheim, Norway. The process, which aims at the manufacturing of end-use products for demanding applications ... -
Maximum Height to Width Ratio of Freestanding Structures Built Using Ultrasonic Consolidation
(2006-09-14)Ultrasonic consolidation (UC) is a process whereby metal foils can be metallurgically bonded at or near room temperature. The UC process works by inducing high-speed differential motion (~20kHz) between a newly deposited ... -
ME Design and Freeform Fabrication of Compliant Cellular Materials with Graded Stiffness
(2006)Typically, cellular materials are designed for structural applications to provide stiffness or absorb impact via permanent plastic deformation. Alternatively, it is possible to design compliant cellular materials that ... -
Mechanical Behavior of SLS Components in Relation to the Build Orientation During the Sintering Process as Measured by ESPI
(2006)Selective Laser Sintering (SLS) allows producing real parts from CAD data from materials with different characteristics compared to the final model, presenting dissimilar mechanical properties between the prototype and ... -
Modeling and Verification of Error Propagation in Integrated Additive/Subtractive Multi-Directional Direct Manufacturing
(2006-09-14)Integrated additive-subtractive manufacturing, when applied in the framework of SolidFreeform-Fabrication (SFF) allows the fabrication of functional parts on single platform, directly from its computer model. Reduction in ... -
Multi-Material Ultrasonic Consolidation
(2006-09-14)Ultrasonic consolidation (UC) is a recently developed direct metal solid freeform fabrication process. While the process has been well-demonstrated for part fabrication in Al alloy 3003 H18, including with intricate ... -
Numerical Simulation and Prediction of Dilution During Laser Deposition
(2006)The laser additive manufacturing technique of laser deposition allows quick fabrication of fully-dense metallic components directly from Computer Aided Design (CAD) solid models. The applications of laser deposition ... -
Numerical Simulation of the Temperature Distribution and Solid-Phase Evolution in the LENS™ Process
(2006-09-14)A three-dimensional finite element model was developed and applied to analyze the temperature and phase evolution in deposited stainless steel 410 (SS410) during the Laser Engineered Net Shaping (LENSTM) rapid fabrication ... -
A Parametric Study of Part Distortions in FDM Using 3D FEA
(2006-09-14)We developed a finite element model to simulate the fused deposition modeling (FDM) process. The model considers the coupled thermal and mechanical analysis and incorporates the element activation function to mimic the ... -
Polyamide Nanocomposites for Selective Laser Sintering
(2006)Current polyamide 11 and 12 are lacking in fire retardancy and high strength/high heat resistance characteristics for a plethora of finished parts that are desired and required for performance driven applications. It is ... -
Practical Issues in the Application of Direct Metal Laser Sintering
(2006)Direct Metal Laser Sintering (DMLS) was introduced to meet the objective of producing metal parts directly from CAD data. CRDM has accumulated six years of experience in applying this technique, mostly to prototyping ... -
Precision Extrusion Deposition of Polycaprolactone/Hydroxyapatite Tissue Scaffolds
(2006)Freeform fabrication provides an effective process tool to manufacture advanced tissue scaffolds with specific designed properties. Our research focuses on using a novel Precision Extrusion Deposition (PED) process ... -
A Preliminary Study on Using Multi-Nozzle Polymer Deposition System to Fabricate Composite Alginate/Carbon Nanotube Tissue Scaffolds
(2006)Three-dimensional composite alginate/single wall carbon nanotube (SWCNT) scaffolds encapsulated with endothelial cells were fabricated by a multi-nozzle biopolymer freeform deposition system. This system enables the ... -
Principles of Laser Micro Sintering
(2006-09-14)Laser Micro Sintering was introduced to the international community of freeform fabrication engineers in 2003 and has since been employed for a variety of applications. It owes its unique features to certain effects of ... -
Process Parameters Optimization for Ultrasonically Consolidated Fiber-Reinforced Metal Matrix Composites
(2006-09-14)As an emerging rapid prototyping technology, Ultrasonic Consolidation (UC) has been used to successfully fabricate metal matrix composites (MMC). The intent of this study is to identify the optimum combination of processing ... -
Processing of Silicon Carbide by Laser Micro Sintering
(2006-09-14)Silicon carbide – a solid with covalent bonds - is conventionally synthesized via the Acheson process. Usually solid bodies of silicon carbide with definite shapes are generated from the grained material via hot isostatic ...
