Download or read book Optimal Design for Additive Manufacturing of Heterogeneous Objects written by Yuna Hu and published by . This book was released on 2005 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Towards Design Automation for Additive Manufacturing written by Anton Wiberg and published by Linköping University Electronic Press. This book was released on 2019-10-14 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, the development of computer-controlled manufacturing by adding materiallayer by layer, called Additive Manufacturing (AM), has developed at a rapid pace. The technologyadds possibilities to the manufacturing of geometries that are not possible, or at leastnot economically feasible, to manufacture by more conventional manufacturing methods. AMcomes with the idea that complexity is free, meaning that complex geometries are as expensiveto manufacture as simple geometries. This is partly true, but there remain several design rulesthat needs to be considered before manufacturing. The research field Design for Additive Manufacturing(DfAM) consists of research that aims to take advantage of the possibilities of AMwhile considering the limitations of the technique. Computer Aided technologies (CAx) is the name of the usage of methods and software thataim to support a digital product development process. CAx includes software and methodsfor design, the evaluation of designs, manufacturing support, and other things. The commongoal with all CAx disciplines is to achieve better products at a lower cost and with a shorterdevelopment time. The work presented in this thesis bridges DfAM with CAx with the aim of achieving designautomation for AM. The work reviews the current DfAM process and proposes a new integratedDfAM process that considers the functionality and manufacturing of components. Selectedparts of the proposed process are implemented in a case study in order to evaluate theproposed process. In addition, a tool that supports part of the design process is developed. The proposed design process implements Multidisciplinary Design Optimization (MDO) witha parametric CAD model that is evaluated from functional and manufacturing perspectives. Inthe implementation, a structural component is designed using the MDO framework, which includesComputer Aided Engineering (CAE) models for structural evaluation, the calculation ofweight, and how much support material that needs to be added during manufacturing. Thecomponent is optimized for the reduction of weight and minimization of support material,while the stress levels in the component are constrained. The developed tool uses methodsfor high level Parametric CAD modelling to simplify the creation of parametric CAD modelsbased on Topology Optimization (TO) results. The work concludes that the implementation of CAx technologies in the DfAM process enablesa more automated design process with less manual design iterations than traditional DfAM processes.It also discusses and presents directions for further research to achieve a fully automateddesign process for Additive Manufacturing.

Download or read book Heterogeneous Component Modeling and Optimal Design for Manufacturing written by Jinhua Huang and published by . This book was released on 2000 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Functionally Graded Materials written by Rasheedat Modupe Mahamood and published by Springer. This book was released on 2017-02-14 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the concept of functionally graded materials as well as their use and different fabrication processes. The authors describe the use of additive manufacturing technology for the production of very complex parts directly from the three dimension computer aided design of the part by adding material layer after layer. A case study is also presented in the book on the experimental analysis of functionally graded material using laser metal deposition process.

Download or read book Impact of Design Research on Industrial Practice written by Amaresh Chakrabarti and published by Springer. This book was released on 2015-07-11 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Showcasing exemplars of how various aspects of design research were successfully transitioned into and influenced, design practice, this book features chapters written by eminent international researchers and practitioners from industry on the Impact of Design Research on Industrial Practice. Chapters written by internationally acclaimed researchers of design analyse the findings (guidelines, methods and tools), technologies/products and educational approaches that have been transferred as tools, technologies and people to transform industrial practice of engineering design, whilst the chapters that are written by industrial practitioners describe their experience of how various tools, technologies and training impacted design practice. The main benefit of this book, for educators, researchers and practitioners in (engineering) design, will be access to a comprehensive coverage of case studies of successful transfer of outcomes of design research into practice; as well as guidelines and platforms for successful transfer of research into practice.

Download or read book Predictive Theoretical and Computational Approaches for Additive Manufacturing written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-12-21 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive manufacturing (AM) methods have great potential for promoting transformative research in many fields across the vast spectrum of engineering and materials science. AM is one of the leading forms of advanced manufacturing which enables direct computer-aided design (CAD) to part production without part-specific tooling. In October 2015 the National Academies of Sciences, Engineering, and Medicine convened a workshop of experts from diverse communities to examine predictive theoretical and computational approaches for various AM technologies. While experimental workshops in AM have been held in the past, this workshop uniquely focused on theoretical and computational approaches and involved areas such as simulation-based engineering and science, integrated computational materials engineering, mechanics, materials science, manufacturing processes, and other specialized areas. This publication summarizes the presentations and discussions from the workshop.

Download or read book Design for Additive Manufacturing written by Martin Leary and published by Elsevier. This book was released on 2019-12-03 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design for Additive Manufacturing is a complete guide to design tools for the manufacturing requirements of AM and how they can enable the optimization of process and product parameters for the reduction of manufacturing costs and effort. This timely synopsis of state-of-the-art design tools for AM brings the reader right up-to-date on the latest methods from both academia and industry. Tools for both metallic and polymeric AM technologies are presented and critically reviewed, along with their manufacturing attributes. Commercial applications of AM are also explained with case studies from a range of industries, thus demonstrating best-practice in AM design. Covers all the commonly used tools for designing for additive manufacturing, as well as descriptions of important emerging technologies Provides systematic methods for optimizing AM process selection for specific production requirement Addresses design tools for both metallic and polymeric AM technologies Includes commercially relevant case studies that showcase best-practice in AM design, including the biomedical, aerospace, defense and automotive sectors

Download or read book A Practical Guide to Design for Additive Manufacturing written by Olaf Diegel and published by Springer. This book was released on 2019-05-21 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a wealth of practical guidance on how to design parts to gain the maximum benefit from what additive manufacturing (AM) can offer. It begins by describing the main AM technologies and their respective advantages and disadvantages. It then examines strategic considerations in the context of designing for additive manufacturing (DfAM), such as designing to avoid anisotropy, designing to minimize print time, and post-processing, before discussing the economics of AM. The following chapters dive deeper into computational tools for design analysis and the optimization of AM parts, part consolidation, and tooling applications. They are followed by an in-depth chapter on designing for polymer AM and applicable design guidelines, and a chapter on designing for metal AM and its corresponding design guidelines. These chapters also address health and safety, certification and quality aspects. A dedicated chapter covers the multiple post-processing methods for AM, offering the reader practical guidance on how to get their parts from the AM machine into a shape that is ready to use. The book’s final chapter outlines future applications of AM. The main benefit of the book is its highly practical approach: it provides directly applicable, “hands-on” information and insights to help readers adopt AM in their industry

Download or read book Design for Additive Manufacturing written by Roland Lachmayer and published by Springer Nature. This book was released on with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Additive Manufacturing of High performance Metals and Alloys written by Igor Shishkovsky and published by BoD – Books on Demand. This book was released on 2018-07-11 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freedoms in material choice based on combinatorial design, different directions of process optimization, and computational tools are a significant advantage of additive manufacturing technology. The combination of additive and information technologies enables rapid prototyping and rapid manufacturing models on the design stage, thereby significantly accelerating the design cycle in mechanical engineering. Modern and high-demand powder bed fusion and directed energy deposition methods allow obtaining functional complex shapes and functionally graded structures. Until now, the experimental parametric analysis remains as the main method during AM optimization. Therefore, an additional goal of this book is to introduce readers to new modeling and material's optimization approaches in the rapidly changing world of additive manufacturing of high-performance metals and alloys.

Download or read book Laser Based Additive Manufacturing of Metal Parts written by Linkan Bian and published by CRC Press. This book was released on 2017-08-09 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser-Based Additive Manufacturing (LBAM) technologies, hailed by some as the "third industrial revolution," can increase product performance, while reducing time-to-market and manufacturing costs. This book is a comprehensive look at new technologies in LBAM of metal parts, covering topics such as mechanical properties, microstructural features, thermal behavior and solidification, process parameters, optimization and control, uncertainty quantification, and more. The book is aimed at addressing the needs of a diverse cross-section of engineers and professionals.

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Additive Manufacturing with Metals written by Sanjay Joshi and published by Springer Nature. This book was released on 2023-12-29 with total page 669 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook and reference provides a comprehensive treatment of additive manufacturing (AM) for metals, including design and digital work flows, process science and reliability, metallic systems, quality assurance, and applications. The book is rooted in the fundamental science necessary to develop and understand AM technologies, as well as the application of engineering principles covering several disciplines to successfully exploit this important technology. As additive manufacturing of metals is the fastest growing subset of this transformative technology, with the potential to make the widest impact to industrial production, Metals Additive Manufacturing: Design, Processes, Materials, Quality Assurance, and Applications is ideal for students in a range of engineering disciplines and practitioners working in aerospace, automotive, medical device manufacturing industries.

Download or read book Additive Manufacturing written by Amit Bandyopadhyay and published by CRC Press. This book was released on 2015-09-08 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of additive manufacturing has seen explosive growth in recent years due largely in part to renewed interest from the manufacturing sector. Conceptually, additive manufacturing, or industrial 3D printing, is a way to build parts without using any part-specific tooling or dies from the computer-aided design (CAD) file of the part. Today, mo

Download or read book Design Representations and Processing for Additive Manufacturing written by Marco Attene and published by Springer Nature. This book was released on 2022-06-01 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The wide diffusion of 3D printing technologies continuously calls for effective solutions for designing and fabricating objects of increasing complexity. The so called "computational fabrication" pipeline comprises all the steps necessary to turn a design idea into a physical object, and this book describes the most recent advancements in the two fundamental phases along this pipeline: design and process planning. We examine recent systems in the computer graphics community that allow us to take a design idea from conception to a digital model, and classify algorithms that are necessary to turn such a digital model into an appropriate sequence of machining instructions.

Download or read book Additive Manufacturing of Heterogeneous Composites for Biomimetic Robots written by Armita Hamidi and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Printing complex objects from computer-aided design models is a unique capability of additive manufacturing (AM). Developing this ability to print heterogeneous materials with diverse mechanical properties will advance AM beyond the current capabilities, eliminating the need for assembly and post-processing, and promoting the efficient design of multifunctional complex objects with minimum time and cost. Considering this concept, we aim to investigate this technology to fabricate biologically inspired structures, actuators, and robots. In this dissertation, first, an inexpensive 3D printer is developed for a single step fabrication of a novel bioinspired joint system, consisting of dissimilar materials with high strength and high strain. The joint consists of thermoplastic parts reinforced with metal fibers that resemble bones and soft elastomer that mimics soft tissue. An open-source 3D printer is modified to print thermoplastic with continuous fibers (copper and steel), where the metal fibers act as reinforcement within a polymer matrix (PLA and PETG). The influence of different wire materials and polymer matrixes on the tensile modulus and ultimate tensile strength is studied. The properties of the samples are predicted analytically using several models and compared with experimental results. Highly stretchable elastomer is directly 3D printed and simultaneously cured by heating. Moreover, a cost effective multi-material AM (modified FDM and DIW) is developed that maintained high elasticity and sufficient strength for printing components that mimic the musculoskeletal system. In the second part of the study, the main focus is on the highly elastic materials, sacrificial materials, and actuation units to further develop the fabrication of highly elastic soft structures. Silicone thinner is used to tailor the mechanical properties of the soft material, and it is shown that the addition of the thinner to the silicone reduces the tensile modulus and improves the elongation to break. By adding 20% volume thinner to the silicone, the 3D printed silicone samples reached to 1260% elongation without breaking, which is the highest among all the 3D printed elastomers previously reported. However, this strain is not achieved in the cyclic tensile test, instead, the maximum strain was 600 % where the sample failed after 40 cycles. To create hollow channels during 3D printing of silicone, carbohydrate glasses are introduced as sacrificial materials. Few configurations of fluidic actuators that are commonly used in soft robots are developed by forming channels in the silicone elastomer via 3D printed sacrificial carbohydrate structures. The last part is the design and development of biomimetic structures (jellyfish, modular joint and starfish structures) by the existing method of robot manufacturing and proposed AM techniques. The primary focus on this part is on the design, development, and analysis of the heterogeneous structures of biomimetic robots. Therefore, a complete fabrication process for each of the robotic structure is identified and used to make multiple functional prototypes. All the demonstrated biomimetic systems are actuated by embedding twisted and coiled polymer (TCP) muscle during or after the fabrication process or assembled. The flexibility of the TCP enables the soft robot to bend, twist, and change shape while it is embedded in the structure. 6-Ply and 4-Ply silver-coated nylon (TCP) muscle geometries were studied and used for the design and development of the jellyfish and starfish like robots. The capabilities offered by these biomimetic robots are extensively characterized such as: (i) swimming, (ii) multidirectional bending, and (iii) producing morphing shapes. Extensive evaluations of these capabilities with functional prototypes demonstrate that integration TCP with elastomer is viable for creating biomimetic robots.

Download or read book TMS 2020 149th Annual Meeting Exhibition Supplemental Proceedings written by The Minerals, Metals & Materials Society and published by Springer Nature. This book was released on 2020-02-13 with total page 2046 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection presents papers from the 149th Annual Meeting & Exhibition of The Minerals, Metals & Materials Society.