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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Influence of 3D printing on transport : a theory and experts judgment based conceptual model
Wouter Boon,Bert van Wee +1 more
TL;DR: In this article, the authors present a review of the literature on 3D printing and transport studies and conclude that the current literature does not provide any provable studies on the relationship between 3D print and transport.
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Very-high-cycle fatigue behavior of AlSi10Mg manufactured by selected laser melting: Crystal plasticity modeling
TL;DR: A crystal plasticity finite element model (CPFEM) with Voronoi tessellation was developed to simulate the cyclic plastic deformation considering defect effects in additive manufacturing as mentioned in this paper.
Journal ArticleDOI
Phase Field Simulation of Dendritic Solidification of Ti-6Al-4V During Additive Manufacturing Process
Linmin Wu,Jing Zhang +1 more
TL;DR: In this article, the phase field method is applied to simulate the phase transformation of Ti-6Al-4V from liquid phase to solid phase during solidification, and the results show the dendritic arms grow along the direction of the heat flow.
Journal ArticleDOI
Nondestructive ultrasonic evaluation of additively manufactured AlSi10Mg samples
TL;DR: In this paper, a Pulse-echo ultrasonic method was used to investigate possible anisotropy in selective laser melting additively manufactured (AM) AlSi10Mg samples.
Journal ArticleDOI
Design and Topology Optimization of 3D-Printed Wax Patterns for Rapid Investment Casting
TL;DR: In this paper, knowledge-based design guidelines for rapid investment casting are developed through streamlined integration of topology optimization with design for investment casting and design for AM principles, which is based on Solid Isotropic Material with Penalization (SIMP) method using Abaqus Topology Optimization Module (ATOM).
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.