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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High-throughput stochastic tensile performance of additively manufactured stainless steel
Bradley Salzbrenner,Jeffrey Rodelas,Jonathan D. Madison,Bradley Howell Jared,Laura Painton Swiler,Yu-Lin Shen,Brad L. Boyce +6 more
TL;DR: In this paper, an array of 100 miniature tensile bars are produced and tested for a comparable cost and in comparable time to a few conventional tensile bar with this technique, it is possible to evaluate the stochastic nature of mechanical behavior.
Journal ArticleDOI
Directed Energy Deposition (DED) Process: State of the Art
TL;DR: Directed energy deposition (DED) is one of the promising flexible manufacturing technologies due to direct fabrication characteristics of a metallic freeform with a three-dimensional shape from computer aided design data as mentioned in this paper.
Journal ArticleDOI
Corrosion Behavior of Additive Manufactured Ti-6Al-4V Alloy in NaCl Solution
TL;DR: In this article, the microstructures, potentiodynamic curves, and electrochemical impedance spectroscopy are characterized for Ti-6Al-4V samples produced by selective laser melting (SLM), SLM followed by heat treatment (HT), wire and arc additive manufacturing (WAAM), and traditional rolling to investigate their corrosion behaviors.
Journal ArticleDOI
Recycled polyethylene terephthalate as a new FFF feedstock material
TL;DR: In this paper, an experiment was conducted to process polyethylene terephthalate bottles and packaging into filament that can then be used for additive manufacturing methods like fused filament fabrication, without the use of additives or modification to the polymer.
Journal ArticleDOI
Anisotropic response of Ti-6Al-4V alloy fabricated by 3D printing selective laser melting
Li Yin Chen,J.C. Huang,Che-Hsin Lin,Cheng-Tang Pan,S.Y. Chen,T. L. Yang,D. Y. Lin,H.K. Lin,Jason S.C. Jang +8 more
TL;DR: In this article, the authors investigated the anisotropic responses in terms of hardness and electrochemical resistance for the X-, Y-and Z-planes of the SLM Ti-6Al-4V bulk samples fabricated with the zigzag laser path strategy.
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.
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.