Journal ArticleDOI
Electron Beam Additive Manufacturing of Titanium Components: Properties and Performance
Reads0
Chats0
TLDR
In this paper, the fatigue properties of Ti-6Al-4V specimens and components produced by Electron Beam additive manufacturing were evaluated and it was found that the fatigue performance of specimens produced by additive manufacturing is significantly lower than that of wrought material due to defects such as porosity and surface roughness.Abstract:
This research evaluates the fatigue properties of Ti-6Al-4V specimens and componentsproduced by Electron Beam additive manufacturing. It was found that the fatigue per-formance of specimens produced by additive manufacturing is significantly lower thanthat of wrought material due to defects such as porosity and surface roughness. However,evaluation of an actual component subjected to design fatigue loads did not result in pre-mature failure as anticipated by specimen testing. Metallography, residual stress, staticstrength and elongation, fracture toughness, crack growth, and the effect of post process-ing operations such as machining and peening on fatigue performance were alsoevaluated. [DOI: 10.1115/1.4025773]Keywords: additive manufacturing, electron beam, titanium, fatigue, fractureread more
Citations
More filters
Journal ArticleDOI
Biomedical applications of additive manufacturing: Present and future
TL;DR: In this article, the influence of type of additive manufacturing (AM) method and process parameters on the surface topography, geometrical features, mechanical properties, biocompatibility, in vitro and in vivo performance of diverse orthopedic applications is reviewed.
Journal ArticleDOI
A review on the fatigue behavior of Ti-6Al-4V fabricated by electron beam melting additive manufacturing
Andrew H. Chern,Peeyush Nandwana,Tao Yuan,Michael M. Kirka,Ryan R. Dehoff,Peter K. Liaw,Chad E. Duty +6 more
TL;DR: In this article, the effects of build orientation, surface roughness, and hot-isostatic pressing are linked to the fatigue properties highlighting microstructure, defects, and failure mechanisms.
Journal ArticleDOI
Optimization of Scan Strategies in Selective Laser Melting of Aluminum Parts With Downfacing Areas
TL;DR: In this paper, the authors describe the process parameter opti-mization for noncomplex, upfacing structures to obtain relative densities above 99% and optimize for downfacing areas, both horizontal and inclined.
Journal ArticleDOI
Scanning strategy in selective laser melting (SLM): a review
TL;DR: In this article, the scanning strategy plays an important role in the microstructures, mechanical properties, and residual stresses of 3D printed parts and some suggestions on the optimization of scanning strategy for better performance are provided based on the above analysis.
References
More filters
Journal ArticleDOI
A study of the microstructural evolution during selective laser melting of Ti–6Al–4V
TL;DR: In this article, the development of the microstructure of the Ti-6Al-4V alloy processed by selective laser melting (SLM) was studied by light optical microscopy.
Journal ArticleDOI
Residual stresses in selective laser sintering and selective laser melting
Peter Mercelis,Jean-Pierre Kruth +1 more
TL;DR: In this paper, a simple theoretical model is developed to predict residual stress distributions in selective laser sintering (SLS) and selective laser melting (SLM), aiming at a better understanding of this phenomenon.
Journal ArticleDOI
Progress in Additive Manufacturing and Rapid Prototyping
TL;DR: Rapid prototyping generally refers to techniques that produce shaped parts by gradual creation or addition of solid material, therein differing fundamentally from forming and material removal manufacturing techniques as mentioned in this paper. But it is not suitable for all applications.
Journal ArticleDOI
Rapid manufacturing and rapid tooling with layer manufacturing (lm) technologies, state of the art and future perspectives
TL;DR: In this article, a systematic material dependent classification of layer manufacturing and process oriented metal part manufacturing techniques are proposed, mainly for metallic parts, polymer parts and tooling, and the generic and the major specific process characteristics and materials are described.
Journal ArticleDOI
On the mechanical behaviour of titanium alloy TiAl6V4 manufactured by selective laser melting: Fatigue resistance and crack growth performance
Stefan Leuders,M. Thöne,Andre Riemer,Thomas Niendorf,Thomas Tröster,Hans Albert Richard,Hans Jürgen Maier +6 more
TL;DR: In this article, the microstructure-defect-property relationship under cyclic loading for a TiAl6V4 alloy processed by selective laser melting is investigated. And the results show that the micron sized pores mainly affect fatigue strength, while residual stresses have a strong impact on fatigue crack growth.