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
Five-parameter characterization of intervariant boundaries in additively manufactured Ti-6Al-4V
TL;DR: In this article, a detailed knowledge of the grain boundary plane characteristics of the α-α intervariant interfaces is still missing, and the authors reveal the full "five-parameter" crystallographic properties of the inter-variant boundaries.
Journal ArticleDOI
A Hybrid Process Integrating Reverse Engineering, Pre-Repair Processing, Additive Manufacturing, and Material Testing for Component Remanufacturing.
TL;DR: A hybrid process was developed to integrate reverse engineering, pre-repair processing, additive manufacturing, and material testing for the purpose of part remanufacturing, providing a solution for automated metallic component re manufacturing.
Journal ArticleDOI
A study on obtaining equiaxed prior-β grains of wire and arc additive manufactured Ti–6Al–4V
TL;DR: In this article, a Ti-6Al-4V alloy wall with 80% equiaxed prior-β grains was fabricated via wire and arc additive manufacturing, and the tensile results presented a much lower anisotropy than that in other studies.
Journal ArticleDOI
Fatigue Performance of Additively Manufactured Ti-6Al-4V: Surface Condition vs. Internal Defects
TL;DR: In this paper, the impact of surface condition and internal defects on the fatigue performance of SEBM grade 23 Ti-6Al-4V bone implant has been evaluated and shown that HIP is necessary only when the surface finish is sufficient and when there are no surface defects.
Journal ArticleDOI
Using Cavitation Peening to Improve the Fatigue Life of Titanium Alloy Ti-6Al-4V Manufactured by Electron Beam Melting
TL;DR: In this article, two types of specimens were prepared: as-built and as-machined specimens, and they were treated by cavitation peening or shot peening.
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.