Journal ArticleDOI
Economics of additive manufacturing for end-usable metal parts
Eleonora Atzeni,Alessandro Salmi +1 more
Reads0
Chats0
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
More filters
Journal ArticleDOI
Depicting additive manufacturing from a global perspective; using Cloud manufacturing paradigm for integration and collaboration
TL;DR: In this article, the authors discuss the requirements and necessities of additive manufacturing with respect to a globalized perspective, considering the two major requirements studied as integration of manufacturing operations and enabling collaboration in distributed manufacturing networks.
Journal ArticleDOI
Social impacts of additive manufacturing: A stakeholder-driven framework
TL;DR: In this article, the authors address the knowledge gap through a critical literature review that leads to the identification of 42 additive manufacturing social impacts and their association with relevant stakeholders, shaping a social life cycle typology that indicates to what extent each stakeholder is affected by additive manufacturing.
Journal ArticleDOI
Aerosol‐Jet Printed Fillets for Well‐Formed Electrical Connections between Different Leveled Surfaces
TL;DR: In this article, an algorithm is developed for aerosol-jet printing of fillet structures that enable a circuitization and hence a smooth electrical transition between the DLSs, and a surface smoothing technique is employed to smooth out the stepped surface topology of a fillet resulting from the layer-by-layer printing of in situ cured material.
Book ChapterDOI
Environmental Impact Assessment Studies in Additive Manufacturing
TL;DR: In this article, the authors present a new methodology to evaluate the environmental impact of a part from its CAD model, which is based on both analytic models (validated by experiments) and experimental models.
Porous Geopolymer Components through Inverse Replica of 3D Printed Sacrificial Templates
Giorgia Franchin,Paolo Colombo +1 more
TL;DR: In this paper, high porosity of PLA sacrificial structures with different patterns were 3D printed with high accuracy and a geopolymeric slurry was used to produce close inverse replicas by means of impregnation in vacuum conditions and subsequent geopolymerization reaction and template removal in a combined chemical and thermal treatment.
References
More filters
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.