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Defect Morphology in Ti-6Al-4V Parts Fabricated by Selective Laser Melting and Electron Beam Melting
(University of Texas at Austin, 2013-08-16)
In order to investigate the morphology of defects present in Selective Laser Melting (SLM)
and Electron Beam Melting (EBM) processes, Ti-6Al-4V specimens were fabricated with varying
porosity using non-optimum processing ...
A New Finite Element Solver using Numerical Eigen Modes for Fast Simulation of Additive Manufacturing Processes
(University of Texas at Austin, 2013)
A new efficient numerical technique has been formulated for dimensional reduction and phenomenological
multi-scale simulation of additive manufacturing processes using finite element analysis. This technique is
demonstrated ...
Influences of Energy Density on Porosity and Microstructure of Selective Laser Melted 17- 4PH Stainless Steel
(University of Texas at Austin, 2013)
Energy density, which directly impacts the properties of as-built parts, is a key factor in the metal
selective laser melting (SLM) process. This paper studies the influences of energy density on
porosity and microstructure ...
Development of a 3D Printing Method for Production of Dental Application
(University of Texas at Austin, 2013)
Traditionally, the manufacturing of dental restorations, including crowns, veneers and
other structures made by ceramics, is a labor‐intensive and time consuming process.
Additive manufacturing has the potential to ...
High Frequency Ultrasonic Non Destructive Evaluation of Additively Manufactured Components
(University of Texas at Austin, 2013)
Ultrasonic testing of additively manufactured components is useful for non-destructive
defect analysis such as porosity, void and delamination detection as well as for analysis of
material properties such as density, ...
The Effects of Processing Parameters on Defect Regularity in Ti-6Al-4V Parts Fabricated By Selective Laser Melting and Electron Beam Melting
(University of Texas at Austin, 2013-08-16)
Processing parameter has an important effect on Selective Laser Melting (SLM) and
Electron Beam Melting (EBM) processes. Defects are easily formed by deviating from optimized
processing parameters. This study purposely ...
A New Dynamic Mesh Method Applied to the Simulation of Selective Laser Melting
(University of Texas at Austin, 2013)
The process of Selective Laser Melting (SLM) involves the moving of a laser beam across a
powder bed to melt material layer by layer. From the standpoint of modeling, this simple
procedure is complicated to capture ...
Modeling and Experimental Validation of Nickel-based Super Alloy (Inconel 625) Made Using Selective Laser Melting
(University of Texas at Austin, 2013)
The formation of constituent phases in Selective Laser Melting of Inconel 625 is a function of
local temperatures, hold times at those temperatures, local cooling rates and local compositions
in the melt pool. These ...
Methods for Enhancing the Speed of Numerical Calculations for the Prediction of the Mechanical Behavior of Parts Made Using Additive Manufacturing
(University of Texas at Austin, 2013)
Finite element modeling (FEM) is one of the most common methods for predicting the thermo-mechanical
properties of 3D structures. Since FEM was developed primarily to analyze and optimize structures that would
then be ...