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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Consolidating spare parts for asset maintenance with additive manufacturing
TL;DR: In this article, the authors analyzed the total costs of consolidation with additive manufacturing, including logistics, manufacturing and repair costs, and found that consolidation with AM often leads to higher total costs.
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Innovations With 3-Dimensional Printing in Physical Medicine and Rehabilitation: A Review of the Literature
TL;DR: This thematic narrative review serves to introduce the rehabilitation professional to 3DP technology and how it is being applied to orthoses, prostheses, and assistive technology (AT).
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In-situ synthesis of Ti2AlNb-based intermetallic alloy by selective laser melting
TL;DR: In this article, the possibility of in-situ synthesis of Ti-22Al-25Nb and Ti-5Al alloys using elemental powder mixtures has been demonstrated.
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Laser-matter interactions in additive manufacturing of stainless steel SS316L and 13-93 bioactive glass revealed by in situ X-ray imaging
Chu Lun Alex Leung,Chu Lun Alex Leung,Sebastian Marussi,Michael Towrie,Jesus del Val Garcia,Robert C. Atwood,A.J. Bodey,Julian R. Jones,Philip J. Withers,Peter D. Lee,Peter D. Lee +10 more
TL;DR: In this article, the authors investigated the laser-matter interactions in LAM of stainless steel SS316L and 13-93 bioactive glass powders using a custom built LAM process replicator with in situ and operando synchrotron X-ray real-time radiography.
Journal ArticleDOI
Study of powder recycling and its effect on printed parts during laser powder-bed fusion of 17-4 PH stainless steel
Farid Ahmed,Usman Ali,D. Sarker,Ehsan Marzbanrad,Kaylie Choi,Yahya Mahmoodkhani,Ehsan Toyserkani +6 more
TL;DR: In this paper, the effect of powder recycling on the microstructure, chemical composition, porosity, roughness, and tensile properties of printed parts was investigated in the context of laser powder-bed fusion additive manufacturing.
References
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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:
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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.