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Exploring Model-Based Engineering Concepts for Additive Manufacturing
(University of Texas at Austin, 2015)
Robust geometry and tolerance representations are needed in additive manufacturing for
precise part specification and interoperability with downstream activities such as manufacturing,
inspection, and long-term archiving. ...
Numerical Simulation and Experimental Investigation of Arc Based Additive Manufacturing Assisted with External Longitudinal Static Magnetic Field
(University of Texas at Austin, 2015)
This paper proposes a new arc based additive manufacturing method assisted with external longitudinal
static magnetic field. An electromagnetic coupling numerical model has been established, which consists of
droplet ...
Using Design of Experiments in Finite Element Modeling to Identify Critical Variables for Laser Powder Bed Fusion
(University of Texas at Austin, 2015)
Input of accurate material and simulation parameters is critical for accurate predictions in
Laser Powder Bed Fusion (L-PBF) Finite Element Analysis (FEA). It is challenging and
resource consuming to run experiments that ...
Methods of Extrusion on Demand for High Solids Loading Ceramic Paste in Freeform Extrusion Fabrication
(University of Texas at Austin, 2015)
Fabrication of highly dense parts with complex geometry by paste-extrusion-based solid
freeform fabrication processes requires a precise control of the extrusion flow rate to dispense
material on demand, which is often ...
Temperature History within Laser Sintered Part Cakes and Its Influence on Process Quality
(University of Texas at Austin, 2015)
The temperature distribution and history within laser sintered part cakes is an important
aspect regarding the process quality and reproducibility of the polymer laser sintering process.
Especially the temperature history ...
Process Monitoring of Directed-Energy Deposition of Inconel-718 via Plume Imaging
(University of Texas at Austin, 2015)
Laser-metal interactions typically results in vaporization and plume formation. These
phenomena are complex and depend upon the details of the laser-vapor-melt interactions. As such,
plume characteristics are sensitive ...
Depth of Cut Monitoring for Hybrid Manufacturing Using Acoustic Emission Sensor
(University of Texas at Austin, 2015)
Laser Metal Deposition LMD is a hybrid manufacturing process consist of a laser
deposition system combined with a 5-axis CNC milling system. During laser deposition many
parameters and their interaction affect the ...
Solid Freeform Fabrication of Transparent Fused Quartz Using a Filament Fed Process
(University of Texas at Austin, 2015)
Glass is a critical material for many scientific and engineering applications including
optics, communications, electronics, and hermetic seals. Despite this technological relevance,
there has been minimal research toward ...
Selective Heat Sintering Versus Laser Sintering: Comparison of Deposition Rate, Process Energy Consumption and Cost Performance
(University of Texas at Austin, 2015)
The Selective Heat Sintering (SHS) process has become available as a low cost
alternative to Laser Sintering (LS) for the additive deposition of polymer objects. While both
processes belong to the powder bed fusion variant ...
Additive Manufacture of Large Structures: Robotic or CNC Systems?
(University of Texas at Austin, 2015)
Additive manufacture of metre scale parts requires direct feed processes such as blown powder or wire
feed combined with lasers or arcs. The overall system can be configured using either a robotic or Computer
Numerical ...