Metal Additive Manufacturing: A Review
TLDR
The state-of-the-art of additive manufacturing (AM) can be classified into three categories: direct digital manufacturing, free-form fabrication, or 3D printing as discussed by the authors.Abstract:
This paper reviews the state-of-the-art of an important, rapidly emerging, manufacturing technology that is alternatively called additive manufacturing (AM), direct digital manufacturing, free form fabrication, or 3D printing, etc. A broad contextual overview of metallic AM is provided. AM has the potential to revolutionize the global parts manufacturing and logistics landscape. It enables distributed manufacturing and the productions of parts-on-demand while offering the potential to reduce cost, energy consumption, and carbon footprint. This paper explores the material science, processes, and business consideration associated with achieving these performance gains. It is concluded that a paradigm shift is required in order to fully exploit AM potential.read more
Citations
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Powder metallurgy of titanium – past, present, and future
Zhigang Zak Fang,James D. Paramore,Pei Sun,K.S. Ravi Chandran,Ying Zhang,Yang Xia,Fei Cao,Mark Koopman,Michael L. Free +8 more
TL;DR: Powder metallurgy (PM) of titanium is a potentially cost-effective alternative to conventional wrought titanium as mentioned in this paper, which examines both traditional and emerging technologies, including the prod...,.
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Selective laser melting (SLM) of AlSi12Mg lattice structures
Martin Leary,Maciej Mazur,Joe Elambasseril,Matthew McMillan,Thomas Chirent,Ying Ying Sun,Ma Qian,Mark Alan Easton,Milan Brandt +8 more
TL;DR: In this paper, the authors provide an experimental investigation of the mechanical properties of SLM AlSi12Mg lattice structures for optimised process parameters as well as the manufacturability of lattice strut elements for a series of build inclinations and strut diameters.
Journal ArticleDOI
Oxides, porosity and fatigue performance of AlSi10Mg parts produced by selective laser melting
Ming Tang,P. Chris Pistorius +1 more
TL;DR: In this article, the effect of hatch spacing and building orientation on tensile and fatigue properties of AlSi10Mg parts was tested. And they found that Oxide-driven pores dominate the fatigue resistance of the samples in this work.
Journal ArticleDOI
Microstructural evolution, nanoprecipitation behavior and mechanical properties of selective laser melted high-performance grade 300 maraging steel
TL;DR: In this article, a high-performance grade 300 maraging steels were fabricated by selective laser melting (SLM) and different heat treatments were applied for improving their mechanical properties.
Journal ArticleDOI
Differences in microstructure and properties between selective laser melting and traditional manufacturing for fabrication of metal parts: A review
TL;DR: Wang et al. as mentioned in this paper summarized relevant studies on metal material fabrication through selective laser melting (SLM) and compared with characteristics described in other reported studies, microstructure, properties, dimensional accuracy, and application of SLM.
References
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Journal ArticleDOI
As-Fabricated and Heat-Treated Microstructures of the Ti-6Al-4V Alloy Processed by Selective Laser Melting
TL;DR: In this paper, the authors presented the various types of microstructure of the Ti-6Al-4V alloy after post-fabrication heat treatments below or above the β transus.
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Microstructure and Mechanical Properties of Wire and Arc Additive Manufactured Ti-6Al-4V
TL;DR: In this paper, the macrostructure, microstructure and mechanical properties of a Ti-6Al-4V alloy after WAAM deposition have been investigated, and the average yield and ultimate tensile strengths of the as-deposited material were found to be slightly lower than those for a forged Ti- 6Al 4V bar (MIL-T 9047), however, the ductility was similar and the mean fatigue life was significantly higher.
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Cost estimation for rapid manufacturing - laser sintering production for low to medium volumes:
TL;DR: In this article, a cost model for laser sintering is proposed, which leads to graph profiles that are typical for layer-by-layer manufacturing processes, and the evolution of cost models and the indirect cost significance in modern costing representation is shown.
Journal ArticleDOI
Environmental aspects of laser-based and conventional tool and die manufacturing
TL;DR: In this paper, the authors investigated three case studies to reveal the extent to which DMD-based manufacturing of molds and dies can currently achieve reduced environmental emissions and energy consumption relative to conventional manufacturing pathways.
Journal ArticleDOI
The laser additive manufacture of Ti-6Al-4V
P. A. Kobryn,S. L. Semiatin +1 more
TL;DR: 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.