Journal ArticleDOI
Electron Beam Additive Manufacturing of Titanium Components: Properties and Performance
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
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Journal ArticleDOI
Electron beam sintering of ceramics for additive manufacturing
TL;DR: In this article, an electron beam with high power density, generated by a forevacuum-pressure, plasma-cathode electron source, was used as heat source.
Journal ArticleDOI
A review on the performance characteristics, applications, challenges and possible solutions in electron beam melted Ti-based orthopaedic and orthodontic implants
TL;DR: This study aims to focus on electron beam melted titanium (Ti)-based orthopaedic implants along with their recent trends in the field to explore their different aspects for future research opportunities.
Journal ArticleDOI
Fatigue Performance of Ti-6Al-4V Additively Manufactured Specimens with Integrated Capillaries of an Embedded Structural Health Monitoring System.
Michaël Hinderdael,Maria Strantza,Dieter De Baere,Wim Devesse,Iris De Graeve,Herman Terryn,Patrick Guillaume +6 more
TL;DR: It is concluded that the surface quality of the integrated capillary is of primary importance in order not to influence the structural integrity of the component to be monitored.
Journal ArticleDOI
Process selection methodology for near net shape manufacturing
Daniele Marini,Jonathan Corney +1 more
TL;DR: A new selection methodology that for the first time supports the identification of Near Net Shape (NNS) processes and the Process Selection Matrix (ProSMa) that associates a component’s shape and production volume with its material requirements to reduce the number of candidate NNS processes.
Journal ArticleDOI
Dynamic compressive response of electron beam melted Ti–6Al–4V under elevated strain rates: Microstructure and constitutive models
Reza Alaghmandfard,Dharmendra Chalasani,Amir Hadadzadeh,Amir Hadadzadeh,Babak Shalchi Amirkhiz,Babak Shalchi Amirkhiz,Akindele Odeshi,Mohsen Mohammadi +7 more
TL;DR: In this article, a constitutive mathematical model was developed to encompass the results of dynamic flow curves for both directions to interpret the elevated strain rate behavior of EBM-Ti64 alloy.
References
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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.