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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Dental 3D-Printing: Transferring Art from the Laboratories to the Clinics.
Sangeeth Pillai,Akshaya Upadhyay,Parisa Khayambashi,Imran Farooq,Hisham Sabri,Maryam Tarar,Kyungjun T. Lee,Ingrid Harb,Stephanie Zhou,Yifei Wang,Simon D. Tran +10 more
TL;DR: In this article, the authors discuss the evolution and current trends in 3D printing applications among various areas of dentistry, focusing on the process of the digital workflow used in the clinical diagnosis of different dental conditions and how they are transferred from laboratories to clinics.
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Predicting microstructure evolution during directed energy deposition additive manufacturing of Ti-6Al-4V
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The Influence of Annealing Temperature and Time on the Formation of δ -Phase in Additively-Manufactured Inconel 625
Mark R. Stoudt,Eric A. Lass,Daniel S. Ng,Maureen E. Williams,F. Zhang,Carelyn E. Campbell,Greta Lindwall,Lyle E. Levine +7 more
TL;DR: Avoiding heat treatments that promote the formation of δ-phase in AM components that are not homogenized is highly recommended, particularly true at elevated temperatures where the microstructural stability and the consistency of mechanical properties are more likely to be affected by the presence of €phase.
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Microstructure and Mechanical Performance of Ti–6Al–4V Lattice Structures Manufactured via Electron Beam Melting (EBM): A Review
TL;DR: In this article, the authors provide a comprehensive review of the studies on the mechanical behaviour of lattice structures made of Ti-6Al-4V, and an investigation on the properties of heat-treated lattice structure is also conducted.
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Preparation and stereolithography 3D printing of ultralight and ultrastrong ZrOC porous ceramics
TL;DR: Porous ZrOC ceramics with octet truss structure have been successfully obtained based on Digital Light Processing (DLP) 3D printing and polymer-derived ceramic technology as discussed by the authors.
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:
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.