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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Enhanced surface integrity with thermally stable residual stress fields and nanostructures in cryogenic processing of titanium alloy ti-6al-4v
TL;DR: In this article, the impact of cooling mechanisms on surface integrity from severe plastic deformation (SPD) processing of Ti-6Al-4V alloy has been investigated in terms of the implemented processing parameters.
Economic analysis of plastic additive manufacturing for production of end use products: a preliminary study
TL;DR: In this paper, an initial study focusing on the economic viability of using plastic additive manufacturing (AM) as a production method for low to high volume production is presented. But, there is a lack of assessment for the economical use of this novel technology.
Journal ArticleDOI
Investigation of Optimal Cement Space in 3D Printed 3-unit Resin Prosthesis: A Pilot Study
TL;DR: For the SLA 3D printed 3-unit resin fixed partial denture, setting the cement space to 90 μm or less is not recommended due to the interference in seating.
Journal ArticleDOI
Part selection for Freeform Injection Moulding: comparison of alternate approaches using a novel comprehensive methodology
Elham Sharifi,Atanu Chaudhuri,Brian Vejrum Wæhrens,Lasse Guldborg Staal,Christian-Friedrich Lindemann,Saeed Davoudabadi Farahani +5 more
TL;DR: In this paper, the authors provide an overview of a methodology, which will enable the industrial end-users to identify the potential parts to be manufactured by free-form injection molding (FIM).
Book ChapterDOI
Additive Manufacturing for Cost Efficient Hybrid Welding Jigs
TL;DR: The results of the assessment on the hybrid welding jig system are presented and the overall potential in the pre-series vehicle production is shown.
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.