Journal ArticleDOI
Economics of additive manufacturing for end-usable metal parts
Eleonora Atzeni,Alessandro Salmi +1 more
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TLDR
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
Citations
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Proceedings ArticleDOI
Supply Chain and Cost Evaluation for Laser Powder Bed Fusion
TL;DR: A benchmark study, which is based on 140 quotes from AM suppliers, provides insights in external supply costs for LPBF manufactured parts.
Journal ArticleDOI
Tensile lap-shear and flexural behaviour of aluminium metal foil parts made by composite metal foil manufacturing
TL;DR: In this article, the effect of test speeds, material thickness and lap lengths on aluminium 1050 single lap joints was analysed and the test results showed that all the samples failed within the parent metal and the bond created during the process remained intact.
Dissertation
Additive layer manufactured sinter-style aluminium/ammonia heat pipes
TL;DR: In this paper, a novel heat pipe (HP) manufacturing method has been developed based on an additive layer manufacturing technique called "selective laser melting" or SLM, which is expected to benefit current applications of aluminium/ammonia heat pipes in space and terrestrial projects as well as many new HP applications.
Dissertation
An Investigation into the Characteristics of Polyurethane Foam for Medical Applications Produced Using Additive Manufacturing Technology
TL;DR: In this paper, the authors evaluated the suitability of additive manufactured PU foam structures for further application such as medical scaffolds by comparing the foams produced using traditional method and have developed an AM production method (In-flight mixing system) for the material (PU).
Journal ArticleDOI
Broadening the design space of engineering materials through “additive grain boundary engineering”
Matteo Seita,Shubo Gao +1 more
TL;DR: In this article , the authors discuss the opportunity provided by additive manufacturing (AM) technology to broaden the applicability of the grain boundary engineering (GBE) paradigm and, consequently, the design space for engineering materials.
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.