Journal ArticleDOI
The laser additive manufacture of Ti-6Al-4V
P. A. Kobryn,S. L. Semiatin +1 more
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TLDR
In this paper, the relationship between LAM processing parameters and microstructure in as-deposited Ti-6Al-4V was investigated, and the results presented in this paper provide a first look at the relationships between the two parameters.Abstract:
Laser additive manufacturing (LAM) is a manufacturing technique with cost-reduction potential for titanium aerospace components. The mechanical properties of LAM Ti-6Al-4V have been investigated extensively, but little work on microstructure evolution has been performed to date. The results presented here provide a first look at the relationships between LAM processing parameters and microstructure in as-deposited Ti-6Al-4V.read more
Citations
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Book ChapterDOI
Laser aided metal additive manufacturing and postprocessing: a comprehensive review
TL;DR: This chapter focused its attention on laser-based AM techniques used to produce metal parts, specifically in selective laser melting and laser-assisted DED techniques.
Journal ArticleDOI
Tailoring Equiaxed β-grain Structures in Ti-6Al-4V Coaxial Electron Beam Wire Additive Manufacturing
TL;DR: In this paper, the more refined primary β-grain solidification structures and textures seen in components built with the novel coaxial electron beam wire DED AM (CEWAM) process have been characterised in detail, for the first time, with the aim of investigating the potential for this technology to directly replicate the β-annealed damage-tolerant microstructure used in large Ti64 aerospace forgings.
Journal ArticleDOI
Microstructure transition gradients in titanium dissimilar alloy (Ti-5Al-5V-5Mo-3Cr/Ti-6Al-4V) tailored wire-arc additively manufactured components
J.R. Kennedy,Alec Davis,A.E. Caballero,M. White,Jonathan Fellowes,Ed Pickering,Ed Pickering,Phil Prangnell +7 more
TL;DR: In this paper, the nature of the chemical mixing and microstructure gradients that occur across the interface transition, when manufacturing tailored components with the two high-performance dissimilar titanium alloys (Ti-6Al-4V and Ti-64) by the wire-arc additive manufacturing (WAAM) process, are reported.
Journal ArticleDOI
Process Optimization Under Uncertainty for Improving the Bond Quality of Polymer Filaments in Fused Filament Fabrication
TL;DR: In this paper, the authors developed a computational framework to optimize the process parameters such that the bond quality between extruded polymer filaments is maximized in fused filament fabrication (FFF).
Effect of Free-Edges on Melt Pool Geometry and Solidification Microstructure in Beam-Based Fabrication Methods
TL;DR: Davis et al. as mentioned in this paper modified the Rosenthal solution to include the effects of free-edges, which is accomplished by the superposition of two point-heat sources approaching one another, with the line of symmetry representing the free-edge.
References
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Book
Fundamentals of Solidification
W. Kurz,D. J. Fisher +1 more
TL;DR: In this article, Atom Transfer at the Solid/Liquid Interface Morphological Instability of a Solid/ Liquid Interface Solidification Microstructure: Cells and Dendrites SolidificationMicrostructure, Eutectic and Peritectic Solute Redistribution Rapid Solidization Microstructures Summary Appendices Symbols Index
Book
Titanium: A Technical Guide
TL;DR: In this paper, the authors provide a summary of the most useful information required to understand titanium and its alloys and present a review of the significant features of the metallurgy and application of titanium and alloys.
Journal ArticleDOI
On the process of transition of the cubic-body-centered modification into the hexagonal-close-packed modification of zirconium
TL;DR: In this paper, the process of transition of the cubic-body-centred modification into the hexagonal-close-packed modification of zirconium can be described by means of a combination of shearing- and dilatation-processes parallel to definite crystallographic directions.
Journal ArticleDOI
The effect of laser power and traverse speed on microstructure, porosity, and build height in laser-deposited Ti-6Al-4V
Solid Freeform Fabrication Symposium (9th) Held at The University of Texas in Austin on August 11-13, 1998; 1998 Report and Proceedings
D. L. Bourell,J. J. Beaman +1 more
TL;DR: The Ninth Solid Freeform Fabrication Symposium (SFF) as mentioned in this paper was held at The University of Texas in Austin on August 11-13, 1998, attended by over 150 national and international researchers.