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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Technology selection in green supply chains - the effects of additive and traditional manufacturing
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Inclusions, Porosity, and Fatigue of AlSi10Mg Parts Produced by Selective Laser Melting
TL;DR: In this article, the authors investigated the effect of hatch spacing and building orientation on tensile and fatigue properties of AlSi10Mg parts produced by selective laser melting (SLM).
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Lightweight lattice structures in selective laser melting: Design, fabrication and mechanical properties
TL;DR: In this paper, a framework for the reliable and reproducible manufacturing of aluminum-based truss lattice structures is presented selecting a suitable exposure strategy and determining the influence of the process parameters scan speed and laser power on the part quality.
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Microstructure and mechanical properties of 304L steel fabricated by arc additive manufacturing
TL;DR: In this article, a tensile test and metallographic analysis of 304L stainless steel fabricated by wire arc additive manufacturing (WAAM) was performed. And the results indicated that with the layers depositing, the cooling rate becomes slower, the dendrites become thicker and the morphology becomes more stable.
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3D Printing of Bioinspired Biomaterials for Tissue Regeneration.
TL;DR: This review summarizes the recent developments in 3D‐printed bioinspired biomaterials for multiple tissue regeneration, and especially highlights the progresses on i) traditional bioinspired designs for biomaterial’s fabrication, ii) biological composition inspired designs for the 3D-printed biomaterialS, and iii) biological structure inspired designsFor the 3 D‐printed biommaterials.
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.