MANUFACTURING processes, LIBRARIANS, LIBRARIES, and ACADEMIC libraries
Prototyping is an incremental process that facilitates those looking to make changes in products, services, or resources. Originating in industrial fabrication process, prototyping can be adapted by librarians to examine changes made to library services, amenities, and resources. They offer a cost-effective way of trying something new and needed, to ensure that patron needs are met. This article modifies prototyping into a five-step process and reviews five examples where the Lee Library used prototyping to inform library decisions to inform the development of library services, amenities, processes, and resources to better serve its patrons. [ABSTRACT FROM AUTHOR]
Medlej, Maroun, Stuban, Steven M. F., and Dever, Jason R.
Defense Acquisition Research Journal: A Publication of the Defense Acquisition University. Oct2017, Vol. 24 Issue 4, p626-655. 30p.
SYSTEMS engineering, RAPID prototyping, DEFENSE industries, MANUFACTURING processes, and LIKELIHOOD ratio tests
In 2007, John Young, then-Under Secretary of Defense for Acquisition, Technology and Logistics, mandated the use of "competitive prototyping" strategies in defense acquisition. Further, Department of Defense Instruction 5000.02 includes considerations for prototyping in the acquisition strategy. A 2017 memorandum circulated by Young lists five prototyping benefits, which are expected to "reduce technical risk, validate designs, validate cost estimates, evaluate manufacturing processes, and refine requirements." However, a process to assess whether, and to what extent, a prototype will be or has been successful in achieving these benefits is not currently in use by the Department of Defense. Because cost increases and schedule extension downsides are inherent in prototyping, such an assessment is critical. This research proposes an approach for assessing the likelihood of achieving expected prototyping benefits based on identifying the factors yielding these benefits as well as their relative weights. [ABSTRACT FROM AUTHOR]
A direct-slicing approach might improve the accuracy and quality of small, complex parts produced with rapid prototyping technology. An application software based on direct slicing for rapid prototyping was used on the foundation of PowerSHAPE models. Lines, conic arcs and cubic bezier curves were adopted as the basic elements describing the direct-slicing contours. Moreover, a scheme to carry out subdivided software development was proposed. A picture (PIC) format file was selected as an interface for the slicing data, and a macro-AutoSection software, which collects the direct-slicing contour data of arbitrary complex computer-aided design models and provides power to produce the direct-slicing PIC files, was developed. On the above basis, an application software called PDSlice based on direct-slicing data processing was developed for the commercial selective laser sintering machine HRPS-III, which was made at the Huazhong University of Science and Technology (HUST), P. R. China. The major input and output interfaces as well as the PIC model reconstruction method of the PDSlice are described. Furthermore, a batch of direct-slicing polymer parts were successfully fabricated with the selective laser sintering machine. The application example shows that the accuracy and surface finish of three-dimensional complex curvature surface parts fabricated with the application software system based on a direct-slicing format were better than the application software system based on a stereolithography (STL) format. [ABSTRACT FROM AUTHOR]
The geometric description used to represent solid objects significantly affects the accuracy and quality of the final parts produced with rapid prototyping (RP) technology. This paper discusses the alternative method of adaptive direct slicing for RP. Direct slicing generates precise contours for each layer from the solid model and avoids an intermediate representation. Adaptive slicing modifies the layer thickness to take into account the curvature of the surface of the solid model in the vertical direction, to alleviate the staircase effect, and to decrease the number of layers. Thereby, adaptive direct slicing potentially enables part fabrication with higher accuracy and production efficiency. This paper presents a new, practical approach to adaptive direct slicing based on the area deviation ratio. The slicing strategy and algorithm are also described. The corresponding procedure was implemented and tested on Windows 95/98 and NT 4.0 with AutoCAD R14. [ABSTRACT FROM AUTHOR]
Li, Jian, Lu, Yang, Cho, Yun-Hyun, and Qu, Ronghai
IEEE Transactions on Industry Applications. Jul-Aug2019, Vol. 55 Issue 4, p3555-3565. 11p.
MACHINING, MANUFACTURING processes, PERMANENT magnets, MACHINE tools, STATORS, POWER capacitors, and HEAT transfer
This paper presents a design process and a detailed multiphysics analysis of an axial-flux permanent-magnet synchronous machine for large-power direct-drive applications. The machine in this paper is 130 kW at 26 r/min with a dual-stator inner-rotor structure. A stator core that is assembled with segmented and prewound teeth is first proposed and applied in a large-power axial-flux permanent-magnet machines (AFPMs). Through this method, the challenges of manufacturing large-diameter AFPMs can be solved. A novel water-cooling system is embedded in the machine to transfer the heat. In addition, the assembling procedure and the manufacture process are also proposed, and a novel distributed follower bearing is used to reduce the deformation and stress of the rotor disk. Finally, based on the multiphysics design, a prototype machine is manufactured and tested. The experiment results match well with the finite-element analysis. [ABSTRACT FROM AUTHOR]
International Journal of Production Research. 3/1/2006, Vol. 44 Issue 5, p919-938. 20p. 4 Color Photographs, 8 Diagrams, 6 Charts, 2 Graphs.
RAPID prototyping, PRODUCTION engineering, MANUFACTURING processes, INDUSTRIAL engineering, POWDER injection molding, MARAGING steel, SINTERING, INJECTION molding of metals, MATERIALS, RESEARCH methodology, and METALLURGICAL research
In this research work, attempts have been made to design, develop and evaluate the performance of mould inserts for injection moulding by using a powder-sintering process. Maraging steel powder, sintering aid and binder are materials used in this proposed development process. Attempts have been made to perform in-depth studies and to apply the powder-sintering process, to eventually produce the final sintered components. In addition, an analysis of the dimensional accuracy of the respective stereolithography master models and an analysis of the sintered specimens during various stages of powder-sintering process have been carried out. The intelligent manufacturing systems (IMS) test part with minor modifications has been used in the evaluation of dimensional accuracy, tolerances, distortion and volumetric variations. The main reason for using this unique geometry is the suitability of its design for injection-moulding processes and tooling. [ABSTRACT FROM AUTHOR]
RAPID prototyping, MANUFACTURING processes, NEW product development, INNOVATIONS in business, INDUSTRIAL designers, INDUSTRIAL design coordination, and SOCIAL media
The article discusses the rise of live prototyping in microbrands as part of the ongoing changes in product development and product innovation, focusing on how industrial designers participate in the industrial design process amidst the growth of social media tools. It explores the relationships between product designer, user and customers. Also discussed are software and industrial converge, corporate design, and in-market prototyping.
Baldassarre, Brian, Konietzko, Jan, Brown, Phil, Calabretta, Giulia, Bocken, Nancy, Karpen, Ingo O., and Hultink, Erik Jan
Journal of Cleaner Production. May2020, Vol. 255, pN.PAG-N.PAG. 1p.
BUSINESS models, SUSTAINABLE engineering, INDUSTRIAL goods, INNOVATIONS in business, DESIGN science, and MANUFACTURING processes
Next to the redesign of industrial products and processes, sustainable business model innovation is a strategic approach to integrate environmental and social concerns into the objectives and operations of organizations. One of the major challenges of this approach is that many promising business model ideas fail to reach the market, which is needed to achieve impact. In the literature, the issue is referred to as a "design-implementation gap." This paper explores how that critical gap may be bridged. In doing so, we contribute to sustainable business model innovation theory and practice. We contribute to theory by connecting sustainable business model innovation with business experimentation and strategic design , two innovation approaches that leverage prototyping as a way to iteratively implement business ideas early on. Using a design science research methodology, we combine theoretical insights from these three literatures into a tool for setting up small-scale pilots of sustainable business models. We apply, evaluate, and improve our tool through a rigorous process by working with nine startups and one multinational company. As a result, we provide normative theory in terms of the sustainable business model innovation process, explaining that piloting a prototype forces organizations to simultaneously consider the desirability (i.e., what users want), feasibility (i.e., what is technically achievable), viability (i.e., what is financially possible), and sustainability (i.e., what is economically, socially and environmentally acceptable) of a new business model. Doing so early on is functional to bridge the design-implementation gap of sustainable business models. We contribute to practice with the tool itself, which organizations can use to translate sustainable business model ideas defined "on paper" into small-scale pilots as a first implementation step. We encourage future research building on the limitations of this exploratory study by working with a larger sample of companies through longitudinal case studies, to further explain how these pilots can be executed successfully. Image 1 • Many business model ideas aimed at integrating sustainability into the objectives and operations of organizations fail to reach the market. • Prototyping allows bridging this design-implementation gap of sustainable business models by shifting the focus from ideation to execution. • We propose a tool that organizations can use to plan and execute small-scale pilots for implementing sustainable business models. [ABSTRACT FROM AUTHOR]
The article offers information on the benefits of additive manufacturing, three-dimensional (3D) printing, and rapid prototyping in manufacturing products. Topics discussed include the use of fused deposition modeling in additive manufacturing, the use of computer-aided design (CAD) software to design the products to be manufactured, and the use of low durometer silicone in producing parts with negative draft.
Computer-Aided Design & Applications. 2013, Vol. 10 Issue 2, p307-319. 13p. 2 Color Photographs, 1 Black and White Photograph, 30 Diagrams, 2 Charts.
RAPID prototyping, NEW product development, MANUFACTURING processes, CONCURRENT engineering, MATHEMATICAL programming, and COMPUTER-aided design
In the "Project GEMA" geometry and mathematics, 62 prototypes were created to establish a conceptual and formal language of the internal architecture of the solids that maintains a progressive continuity through mathematics, to explore and analyze the changes generated by the points, lines, planes and volume of the cube, the sphere and the tetrahedron. The idea of this project came from mixture of geometric graphics and mathematics to construct models in three dimensions using CAD applications and rapid prototyping through the resources and elements of descriptive geometry. This paper illustrates step by step the construction of the "Project GEMA"® cube # 022, from the standpoint of mathematics and design with CAD applications. [ABSTRACT FROM AUTHOR]
International Journal of Production Research. May2016, Vol. 54 Issue 10, p3118-3132. 15p. 7 Diagrams, 1 Chart.
RAPID prototyping, TREND analysis in business, PROTOTYPES, TECHNOLOGICAL innovations, MANUFACTURING processes, and THREE-dimensional printing
The rapid prototyping has been developed from the 1980s to produce models and prototypes until the technologies evolution today. Nowadays, these technologies have other names such as 3D printing or additive manufacturing, and so forth, but they all have the same origins from rapid prototyping. The design and manufacturing process stood the same until new requirements such as a better integration on production line, a largest series of manufacturing or the reduce weight of products due to heavy costs of machines and materials. The ability to produce complex geometries allows proposing of design and manufacturing solutions in the industrial field in order to be ever more effective. The additive manufacturing (AM) technology develops rapidly with news solutions and markets which sometimes need to demonstrate their reliability. The community needs to survey some evolutions such as the new exchange format, the faster 3D printing systems, the advanced numerical simulation or the emergence of new use. This review is addressed to persons who wish have a global view on the AM and improve their understanding. We propose to review the different AM technologies and the new trends to get a global overview through the engineering and manufacturing process. This article describes the engineering and manufacturing cycle with the 3D model management and the most recent technologies from the evolution of additive manufacturing. Finally, the use of AM resulted in new trends that are exposed below with the description of some new economic activities. [ABSTRACT FROM AUTHOR]
Control Engineering. Jan2020, Vol. 67 Issue 1, p39-40. 2p.
RAPID prototyping, MANUFACTURING processes, and INDUSTRY 4.0
The article informs about additive manufacturing in the aerospace sector has brought reduced inventory cost by high percent. Topics discussed include helping global original equipment manufacturers (OEMs) cater to various sectors and markets worldwide; manufacturing ecosystem and costs of supply chain with newer technologies disrupting business transformation; and future of manufacturing relies on a more diverse network of prototyping applications experts.