PROTOTYPES, INDUSTRIAL design, ENGINEERING design, TECHNOLOGICAL innovations, and NEW product development
Prototyping can be seen as the heart of the innovation process. Typically, engineers and designers both work on prototyping activities, but their diverse backgrounds make for different perspectives on prototyping. Based on earlier literature, this study investigates commonalities and differences in the prototyping behavior of engineers and designers. For this study, semi‐structured interviews and workshops with different experiments were conducted. Using low‐fidelity prototypes, our results indicated that there are differences in the early phase of prototyping. Engineers focused on the features and functions of a prototype and needed to meet specific goals in order to push the process forward. Designers, on the other hand, used prototypes to investigate the design space for new possibilities, and were more open to a variety of prototyping materials and tools, especially for low‐fidelity prototypes. In the later prototyping phases, the prototyping behaviors of engineers and designers became similar. Our study contributes to the understanding of prototyping purposes, activities, and processes across disciplines, and supports the management of prototyping in new product development processes. [ABSTRACT FROM AUTHOR]
TECHNOLOGY, RAPID prototyping, ENGINEERING design, MANUFACTURES, COLLEGE campuses, UNDERWATER pipelines, and OCEAN engineering
The article reports on the launch of Baker Hughes' Subsea Centre of Excellence (CoE) in Montrose on the northeast coast of Scotland in June 2019 to leverage the best of industry innovation, engineering, manufacturing, test and assembly facilities in the world. It mentions that upgraded and expanded CoE created to encourage product innovation on a new scale.
A rapid prototyping (RP) machine system which combines a PC-based controller with the thermal-extrusion method is presented. The proposed RP system offers a three-axis platform, an extrusion head, a temperature controller, and a PC-based control system. Low-cost acrylonitrile-butadiene-styrene (ABS) pellets/powder are used for thermal extrusion, although the system is easily adapted to other not-too-dissimilar materials. In order to improve the quality of RP part, the Taguchi method was used to analyzing the process parameters of the pro- posed RP system. Based on the experimental results, the proposed RP mechatronics system can produce good quality RP parts. The RP software technique includes slicing, support, tool path, and motion code generation. This paper also presents a new adaptive slicing algorithm for RI' system. According to this algorithm, the three-dimensional (3-D) computer-aided design (CAD) model can be sliced with different thickness automatically by comparing the contour circumference or the center of gravity of the contour with those of the adjacent layer. With this adaptive slicing method, the part can be fabricated faster than it uses uniform slicing method with identical accuracy. Finally, the intelligent web-based RP system allows remote users to upload an STL file, to directly building up of the physical model, and to monitor the actual fabrication process from a charged coupled devices (C CD) camera located in the RP machine itself. The user does not need to buy an expensive RP machine; instead, he can rent time and uses the machine remotely via the Internet. [ABSTRACT FROM AUTHOR]
Journal of Engineering Design. Jan-Mar2016, Vol. 27 Issue 1-3, p118-145. 28p. 7 Color Photographs, 4 Black and White Photographs, 5 Charts, 1 Graph.
ENGINEERING design, PRODUCT design, INDUSTRIAL design, GESTURE, and VIDEO coding
There is an on-going focus exploring the use of gesture in design situations; however, there are still significant questions as to how this is related to the understanding and communication of design concepts. This work explores the use of gesture through observing and video-coding four teams of engineering graduates during an ideation session. This was used to detail the relationship between the function behaviour structure elements and individual gestures as well as to identify archetypal gesture sequences – compound reflective, compound directed one-way, mirroring, and modification. Gesture sequences occurred at critical periods during the design session, such as idea evolution and developing shared understanding. They are used to act out design concepts, repeat and learn from sequences, and establish shared understanding. Finally, a number of implications are identified for both researchers and those seeking to support practice. [ABSTRACT FROM PUBLISHER]
RAPID prototyping, COMPUTER software, PROTOTYPES, and ENGINEERING design
Looks at materials and build techniques that change the way companies use rapid prototyping (RP) equipment. Information on some RP build improvements which include software revisions; Benefits of rapid prototypes; Description of the Z-Cast RP pattern process from Griffin Industries. INSETS: Accurate RP parts tell more in wind tunnel tests;Thin layers produce smooth surfaces.
This article reports that rapid prototyping has evolved from a relatively simple modeling technique that allows design engineers to "test" their ideas in three dimensions to a sophisticated custom-manufacturing tool that may one day find its place alongside the copy machines at the local copy center or in the parts department at the local automobile dealership. Direct metal deposition is a laser-melting process that uses a powder nozzle to deposit metal powder onto existing tools to build the components layer by layer. While the last few years have seen the development of new rapid-prototyping technologies and processes that overcome the geometry problem, the available materials have not had adequate properties to enable them to build production-quality parts. INSET: High-power lasers enable metal-powder prototyping.
Journal of Systems & Software. Mar99, Vol. 45 Issue 2, p141. 14p. 1 Black and White Photograph, 10 Diagrams.
ENGINEERING design, DISTRIBUTED computing, and ALGORITHMS
Focuses on a study that examined the design and implementation of a rapid prototyping system for distributed algorithms. Key to rapid prototyping; Object oriented design of IPC...F Base software; Implementation of rapid prototyping system on a transputer network; Experience of using the prototyping systems to rapidly build prototypes; Layered structure of IPC subsystem functions.
NEW product development, PROTOTYPES, ENGINEERING design, CASE studies, and WINDOW blinds
This paper presents a case study of the design development of a new product, electrostatically actuated window blinds. The text presents a description of each stage in the prototype development followed by a discussion of different prototyping methods and design for manufacture and assembly issues. Results from electromechanical and thermal analyses of the product itself are also included. This case study determined that, for this product development, the most efficient, cost-effective prototyping solution was simple plastic injection moulding. It also concluded that following good design for manufacture and assembly practices during prototype construction will save time and money when transitioning to a production design. [ABSTRACT FROM AUTHOR]
Additive Manufacturing (AM) technologies are widely adopted in design practice for prototyping. However, the extent to which practitioners are knowledgeable and experienced in designing components for series production using AM remains poorly understood. This study presents the results of an online survey aimed at uncovering this emerging design activity, with additional evidence provided by semi-structured interviews with 18 designers. One hundred ten practising designers responded. The majority of the respondents remain sceptical about the potential for AM as a process for series production, citing cost and technical capabilities as key barriers. Only 23 reported experience in designing components for series production using AM, with the majority of these designing parts to be produced from plastic. The survey revealed that these designers have developed their own ‘design rules’ based primarily on personal experience. These rules, however, tended to focus on ensuring ‘printability’ and did not provide support for taking advantage of the unique capabilities of AM processes. The designers tended to treat AM processes as a uniform set of production processes, and so the design rules they used were generic and not directed to the capabilities of specific AM processes. [ABSTRACT FROM AUTHOR]
RAPID prototyping, PROTOTYPES, MANUFACTURING processes, ENGINEERING design, and DIGITAL technology
The article discusses the advantages of using manual methods of rapid prototyping. It states that manual methods can generate metal parts faster and cheaper than using modern prototyping technology. It indicates that digital prototyping technology provides new ways of doing things efficiently but it can be expensive.
Fully dense freeform fabrication (FDFF) is a process based on thin line cutting processes, variable thickness layering, slicing in different orientations, and bulk layer attachment. The combination of these capabilities enables the production of good quality complex parts from practically any material at a very fast pace. As for rapid prototypes fabricated by the FDFF process, it is certainly possible to employ adaptive slicing technique due to the possibility of cutting different metal/non-metal sheet at various thicknesses. This paper proposes a new adaptive slicing method whereby the capability of cutting a 3D solid model at the predefined sheets' thicknesses is achieved and the geometry of all internal and external features of a part is also investigated to ensure the reduction of part geometry deviation through the seamless curvature detection. Despite most previous works which start slicing a tessellated or direct CAD model at the maximum available thickness, this system commences the process with available minimum thickness by applying a new adaptive method to all pairs of contours at the top and bottom slices of the layer. Autodesk Inventor solid modeler, as a design-by-feature solid modeler, is used for 3D solid modeling. The proposed system is implemented by Visual Basic codes inside Inventor using API functions to access both geometry and topology information of the design-by-feature solid model. This system has been successfully tested on a variety of complex parts containing sophisticated internal and external features. [ABSTRACT FROM AUTHOR]
ENGINEERING design, RAPID prototyping, MANUFACTURING processes, ENERGY consumption, and THREE-dimensional printing
Additive manufacturing (AM) proposes a novel paradigm for engineering design and manufacturing, which has profound economic, environmental, and security implications. The design freedom offered by this category of manufacturing processes and its ability to locally print almost each designable object will have important repercussions across society. While AM applications are progressing from rapid prototyping to the production of end-use products, the environmental dimensions and related impacts of these evolving manufacturing processes have yet to be extensively examined. Only limited quantitative data are available on how AM manufactured products compare to conventionally manufactured ones in terms of energy and material consumption, transportation costs, pollution and waste, health and safety issues, as well as other environmental impacts over their full lifetime. Reported research indicates that the specific energy of current AM systems is 1 to 2 orders of magnitude higher compared to that of conventional manufacturing processes. However, only part of the AM process taxonomy is yet documented in terms of its environmental performance, and most life cycle inventory (LCI) efforts mainly focus on energy consumption. From an environmental perspective, AM manufactured parts can be beneficial for very small batches, or in cases where AM-based redesigns offer substantial functional advantages during the product use phase (e.g., lightweight part designs and part remanufacturing). Important pending research questions include the LCI of AM feedstock production, supply-chain consequences, and health and safety issues relating to AM. [ABSTRACT FROM AUTHOR]
The article offers the insights of several design engineering industry leaders on developments in rapid prototyping materials, including Gaurang Trivedi of Hi-Tech Outsourcing Services, Bill Camuel of RedEye, and Buddy Byrum, of 3D Systems. It also mentioned their expectations for future prototyping materials like three-dimensional (3D) printing materials, ULTEM 9085 thermoplastic, and hybrid casting material.
RAPID prototyping, PROTOTYPES, ENGINEERING design, INDUSTRIAL design, and THREE-dimensional imaging
Discusses the use of three-dimensional (3D) printing prototypes in engineering design. Elements and key features of 3D printing prototypes; Methods employed in 3D printing; Advantages and disadvantages of conventional rapid prototyping systems and 3D printers.