Journal ArticleDOI
Economics of additive manufacturing for end-usable metal parts
Eleonora Atzeni,Alessandro Salmi +1 more
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In this paper, a comparison between two different technologies for metal part fabrication, the traditional high-pressure die-casting and the direct metal laser sintering additive technique, is done with consideration of both the geometric possibilities of AM and the economic point of view.Abstract:
Additive manufacturing (AM) of metal parts combined with part redesign has a positive repercussion on cost saving. In fact, a remarkable cost reduction can be obtained if the component shape is modified to exploit AM potentialities. This paper deals with the evaluation of the production volume for which AM techniques result competitive with respect to conventional processes for the production of end-usable metal parts. For this purpose, a comparison between two different technologies for metal part fabrication, the traditional high-pressure die-casting and the direct metal laser sintering additive technique, is done with consideration of both the geometric possibilities of AM and the economic point of view. A design for additive manufacturing approach is adopted. Costs models of both processes are identified and then applied to an aeronautical component selected as case study. This research evidences that currently additive techniques can be economically convenient and competitive to traditional processes for small to medium batch production of metal parts.read more
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Book ChapterDOI
Additive manufacturing as a cost-effective way to produce metal parts
Eleonora Atzeni,Luca Iuliano,Giovanni Marchiandi,Paolo Minetola,Alessandro Salmi,Elena Bassoli,Lucia Denti,Andrea Gatto +7 more
TL;DR: In this paper, a break-even analysis of additive manufacturing with respect to traditional technologies is presented, comparing the Selective Laser Melting (SLM) additive process with High Pressure Die Casting (HPDC) and 5-axis machining.
Journal ArticleDOI
Additive Manufacturing: A Game Changer in Supply Chain Design
Victor Verboeket,Harold Krikke +1 more
TL;DR: Six AM SC mechanisms are constructed that can be used in SC design to achieve desired SC outcomes for AM production applications in certain (business) contexts and the disruptive ‘game-changing’ effects of AM are identified for SC stakeholders.
Journal ArticleDOI
Automated Image Mapping and Quantification of Microstructure Heterogeneity in Additive Manufactured Ti6Al4V
TL;DR: In this paper, an automated microstructure analysis tool was developed, and tested against independently measured data, that can accurately map the inter-lamellar spacing of the α phase and spheroidicity of the β phase, at both high resolution and over large distances.
Journal ArticleDOI
Additive manufacturing of structural ceramics: a historical perspective
TL;DR: In this article, the fabrication of dense, structural advanced ceramic components using the seven families of additive manufacturing is discussed through a historical perspective, and the challenges of processing structural ceramic materials, including high processing temperatures, defect sensitive mechanical properties, and poor machining characteristics are discussed.
Journal ArticleDOI
Additive manufacturing—a revolution in progress? Insights from a multiple case study
TL;DR: The conditions under which the powder bed fusion process can replace machining in basic metal part production are evaluated and the changes needed to improve the competitiveness of additive manufacturing compared to traditional manufacturing technology are demonstrated.
References
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Book
Additive Manufacturing Technologies: Rapid Prototyping to Direct Digital Manufacturing
TL;DR: Gibson et al. as discussed by the authors presented a comprehensive overview of additive manufacturing technologies plus descriptions of support technologies like software systems and post-processing approaches, and provided systematic solutions for process selection and design for AM Additive Manufacturing Technologies: Rapid Prototyping to Direct Digital Manufacturing.
BookDOI
Rapid manufacturing : an industrial revolution for the digital age
TL;DR: In this paper, the authors present a discussion of the potential of rapid manufacturing in the automotive industry and present a case study of how to modify a garden fork handle in order to make it more efficient.
Journal ArticleDOI
Rapid Manufacturing of Metal Components by Laser Forming
TL;DR: In this article, the main driving force of rapid prototyping or layer manufacturing techniques changed from fabrication of prototypes to rapid tooling (RT) and rapid manufacturing (RM), and nowadays, the direct fabrication of functional or structural end-use products made by layer manufacturing methods, i.e. RM, is the main trend.
Book ChapterDOI
Design for Additive Manufacturing
TL;DR: In this article, the capabilities of additive manufacturing technologies provide an opportunity to rethink DFM to take advantage of the unique capabilities of these technologies, and several companies are now using AM technologies for production manufacturing.
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.