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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Journal ArticleDOI
Enabling RDM in challenging environments via additive layer manufacturing: enhancing offshore petroleum asset operations
TL;DR: Redistributed manufacturing (RDM), together with additive layer manufacturing (ALM), enables a consumer-centric supply to be created and some of the challenges pertaining to traditional supply chai...
Journal ArticleDOI
Improving sustainability and cost efficiency for spare part allocation strategies by utilisation of additive manufacturing technologies
TL;DR: A two-stage model as a basis for decision support in spare part allocation is proposed, which introduces a multi-criteria part classification regarding classical criteria as well as criteria referring to AM.
Dissertation
Concevoir avec la Fabrication Additive : Une proposition d’intégration amont de connaissances relatives à une innovation technologique
TL;DR: In this paper, the authors propose an approach to integrate connaissances of fabrication additive manufacturing (FA) into DWAM, a design-with-additive manufacturing (DWAM) approach.
Book ChapterDOI
Energy Efficiency of Metallic Powder Bed Additive Manufacturing Processes
TL;DR: In this article, a comprehensive review of the relevant literature of the studies presented on the energy efficiency of metallic powder bed additive manufacturing processes and the key challenges for improving it is presented.
Journal ArticleDOI
Small Scale Mechanical Testing for Additively Manufactured (Direct Metal Laser Sintered) Monolithic and Hybrid Test Samples
TL;DR: In this article, the applicability of small scale testing as a viable technique in laser additive manufacturing (DMLS), especially for its applicability in building hybrid parts on to conventionally manufactured parts as well as to serve as a quality control option during scaling up of AM parts, thereby contributing to productivity of production parts.
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.