Metal Additive Manufacturing: A Review
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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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Machine Learning in Additive Manufacturing: A Review
Lingbin Meng,Brandon McWilliams,William Jarosinski,Hye-Yeong Park,Yeon-Gil Jung,Je-Hyun Lee,Jing Zhang +6 more
TL;DR: The latest applications of machine learning (ML) in the additive manufacturing (AM) field are reviewed and different types of ML tasks, including regression, classification, and clustering are classified.
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Characterization and Comparison of Inconel 625 Processed by Selective Laser Melting and Laser Metal Deposition
Giulio Marchese,Xabier Garmendia Colera,Flaviana Calignano,Massimo Lorusso,Sara Biamino,Paolo Minetola,Diego Manfredi +6 more
TL;DR: In this article, a Ni superalloy is processed by two different additive manufacturing (AM) processes: selective laser melting (SLM) and laser metal deposition (LMD).
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A review of powdered additive manufacturing techniques for Ti-6al-4v biomedical applications
Wan Sharuzi Wan Harun,N. S. Manam,M. S.I.N. Kamariah,Safian Sharif,Ahmad Hafiz Zulkifly,I. Ahmad,H. Miura +6 more
TL;DR: A comprehensive review of metal additive manufacturing (metal-AM) processes evolution used in biomedical applications is provided in this paper, where the most common types of metal-AM methods practised today are Selective Laser Sintering (SLS), Selective Lening (SLM), Direct Metal Laser Simmering (DMLS), Electron Beam Melting (EBM), and Laser Engineered Net Shaping (LENS).
Journal ArticleDOI
Role of geometry on properties of additively manufactured Ti-6Al-4V structures fabricated using laser based directed energy deposition
J.S. Keist,Todd Palmer +1 more
TL;DR: A series of Ti-6Al-4V wall structures were additively manufactured using directed energy deposition (DED) with similar processing parameters and build paths to investigate the role of geometry on the resulting as-deposited microstructure and mechanical properties as mentioned in this paper.
Journal ArticleDOI
Towards understanding grain nucleation under additive manufacturing solidification conditions
Arvind Prasad,Lang Yuan,Peter D. Lee,Mitesh N. Patel,Dong Qiu,Mark Alan Easton,David H. StJohn +6 more
TL;DR: In this article, the effect of high thermal gradients and cooling rates on equiaxed grain nucleation and growth in conditions similar to those experienced during additive manufacturing (AM) processes was analyzed.
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.
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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.
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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.