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Numerical Analysis of Thermal Stress and Deformation in Multi-Layer Laser Metal Deposition Processes
(University of Texas at Austin, 2013-08-16)
Direct metal deposition (DMD) has gained increasing attention in the area of rapid manufacturing and repairing. This process involves extremely high thermal gradients and heat and
cooling rate, resulting in residual ...
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 ...
Process Mapping for Qualification Across Multiple Direct Metal Additive Manufacturing Processes
(University of Texas at Austin, 2013)
This paper gives an overview of work by the authors developing process mapping
methods for additive manufacturing (AM), capturing the dependence of melt pool geometry and
microstructure on primary processing variables ...
An Event-Driven Software Architecture for Process Analysis in Additive Manufacturing
(University of Texas at Austin, 2013-08-16)
Additive Manufacturing is still not commonly accepted as a considerable manufacturing
process for serial products. Build rate and cost estimation or even the traceability of parts
concerning Quality Management issues is ...
Selective Area Laser Deposition Joining of Aluminum Oxide
(University of Texas at Austin, 2013-08-16)
Selective area laser deposition (SALD) is a chemical vapor deposition technique used to
deposit ceramic material. The technique allows localized deposition in the area of the laser spot;
complex depositions can be achieved ...
Study of the Influence of Material Properties on Residual Stress in Selective Laser Melting
(University of Texas at Austin, 2013-08-16)
Selective laser melting (SLM) is characterized by highly localized heat input and short
interaction times, which lead to large thermal gradients. In this research, nine different materials
are processed via SLM and ...
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 ...
Melt Pool Geometry Simulations for Powder-Based Electron Beam Additive Manufacturing
(University of Texas at Austin, 2013-08-16)
It is known that the melt pool geometry and dynamics strongly affect the build
part properties in metal-based additive manufacturing (AM) processes. Thus, process
temperature predictions may offer useful information of ...
Study on the Microstructure and Binding Mechanisms of Selective Laser Sintered Wood Plastic Composite
(University of Texas at Austin, 2013-08-16)
A new type of wood plastic composite, Eucalyptus/PES(Polyethersulfone) blend, was
developed. It was designed to be used in LS (Laser Sintering) with reduced energy usage with
cost savings. The preparation of Eucalyptus/PES ...