Download or read book Novel Efficient Global Optimization and Simulation Methods Applied to Additive Manufacturing Process Design written by Long Wang (Ph. D. in aerospace engnieering) and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive manufacturing (AM) or three-dimensional (3D) printing has become one of the most promising commercial manufacturing techniques. Benefits of AM include delivery savings as parts are made on-site, lower environmental wastes with less warehousing, and (in some cases) improved product quality and performance. The current knowledge and technology for metal AM thermal, stress, and strain prediction is mainly driven by numerical methods such as FEM, which limit the calculation of the stress and strain in a mesh-dependent setting and limit the computational efficiency of the analysis. We employ a Discrete Source Model (DSM), which estimates the thermal field independent of mesh. The effect of heat source parameters on the predicted melting pool geometry has been studied using a double-elliptical version of DSM. The parameters of our DSM model are validated with experimental data and compared the model with a model proposed previously known as “the point source model” for melt pool geometry estimations. Then, we propose a mesh-independent thermal and residual stress estimation method for the metal additive manufacturing process. We also compare McDowell and radial return method for updating plastic stress rate for the residual stress estimation process. The above method enables fast in-process estimation of stress and strain of the part. Methods based on Gaussian Stochastic Process (GSP) models and Expected Improvement (EI) functions have been promising for box-constrained expensive optimization problems. These include robust d4esign problems with environmental variables having set-type constraints. However, the methods that combine GSP and EI sub-optimizations suffer from the following problem, limiting their computational performance. Efficient Global Optimization (EGO) methods often repeat the same or nearly the same experimental points. We present a novel EGO-type constraint-handling method that maintains a so-called “tabu list” to avoid past points. Our method includes two types of penalties for the key “infill” optimization, which selects the subsequent test runs. We benchmark our Tabu EGO algorithm with five alternative approaches, including DIRECT methods using nine test problems and two engineering examples. We consider both deterministic and “noisy” simulation optimization problems. The engineering examples are based on additive manufacturing process parameter optimization using point-based thermal simulations and robust-type quality constraints. Our test problems span unconstrained, simply constrained, and robust constrained problems. The comparative results imply that Tabu EGO offers promising computational performance for all types of black-box optimization in terms of convergence speed and the quality of the final solutions.
Download or read book Additive Manufacturing Technologies From an Optimization Perspective written by Kumar, Kaushik and published by IGI Global. This book was released on 2019-06-28 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this technology-driven era, conventional manufacturing is increasingly at risk of reaching its limit, and a more design-driven manufacturing process, additive manufacturing, might just hold the key to innovation. Offering a higher degree of design freedom, the optimization and integration of functional features, and the manufacturing of small batch sizes, additive manufacturing is changing industry as we know it. Additive Manufacturing Technologies From an Optimization Perspective is a critical reference source that provides a unified platform for the dissemination of basic and applied knowledge about additive manufacturing. It carefully examines how additive manufacturing is increasingly being used in series production, giving those in the most varied sectors of industry the opportunity to create a distinctive profile for themselves based on new customer benefits, cost-saving potential, and the ability to meet sustainability goals. Highlighting topics such as bio-printing, tensile strength, and cell printing, this book is ideally designed for academicians, students, engineers, scientists, software developers, architects, entrepreneurs, and medical professionals interested in advancements in next-generation manufacturing.
Download or read book Additive Manufacturing Technology written by Kun Zhou and published by John Wiley & Sons. This book was released on 2022-12-20 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive Manufacturing Technology Highly comprehensive resource covering all key aspects of the current developments of additive manufacturing Additive Manufacturing Technology: Design, Optimization, and Modeling provides comprehensive and in-depth knowledge of the latest advances in various additive manufacturing technologies for polymeric materials, metals, multi-materials, functionally graded materials, and cell-laden bio-inks. It also details the application of numerical modeling in facilitating the design and optimization of materials, processes, and printed parts in additive manufacturing. The topics covered in this book include: Fundamentals and applications of 4D printing, 3D bioprinting of cell-laden bio-inks, and multi-material additive manufacturing Alloy design for metal additive manufacturing, mechanisms of metallurgical defect formation, and the mechanical properties of printed alloys Modified inherent strain method for the rapid prediction of residual stress and distortion within parts fabricated by additive manufacturing Modeling of the different stages in polymer and metal additive manufacturing processes, including powder spreading, melting, and thermal stress evolution By providing extensive coverage of highly relevant concepts and important topics in the field of additive manufacturing, this book highlights its essential role in Industry 4.0 and serves as a valuable resource for scientists, engineers, and students in materials science, engineering, and biomedicine.
Download or read book Advances in Additive Manufacturing written by Ravi Kant Mittal and published by Elsevier. This book was released on 2022-11-24 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book is a compilation of scholarly articles on the latest developments in the field of additive manufacturing, discussing nature-inspired and artificial intelligence–aided additive manufactured processes for different materials including biomanufacturing, and their applications, as well as various methods to enhance the characteristics of the materials produced, the efficiency of the manufacturing process itself, as well as optimal ways to develop a product in minimum time. The book explores the advancements in additive manufacturing from prefabrication stage to final product, with real-time defect detection, control, and process efficiency improvement covered. This book will be a great resource for engineers, researchers, and academics involved in this revolutionary and unique field of manufacturing. - Discusses modeling of additive manufacturing processes by artificial intelligence - Looks at the optimization of designs, technologies, and material fabrication and the use of simulation in additive manufacturing - Includes case studies and real-world industrial problems and solutions
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 Process Planning written by Chi Zhou and published by LAP Lambert Academic Publishing. This book was released on 2014-06-06 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Current market trends have resulted in the need for more efficient and robust manufacturing paradigm. Additive manufacturing (AM) can fabricate parts directly from digital models. Thus it can significantly shorten product development cycle while satisfying customized design requirements. However, compared with traditional manufacturing process, AM process also have disadvantages. Many researchers have extensively studied some critical processes and proposed novel solutions to improve the process. However, all these process planning methods are still mainly based on trial and error. This book, therefore, investigated the main principles and key techniques of AM process, formulated predicative mathematics models, proposed various optimization approaches and conducted simulation and physical experiments for verification. The proposed method can fundamentally and efficiently improve the AM process constrained by the current technique conditions. This research work should be useful to professionals in advanced manufacturing especially additive manufacturing fields, or anyone else who are interested in process modeling, optimization and simulation.
Download or read book Additive Manufacturing with Novel Materials written by R. Rajasekar and published by John Wiley & Sons. This book was released on 2024-02-19 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: ADDITIVE MANUFACTURING With NOVEL MATERIALS The book explores practically the latest advancements and techniques in 3D and 4D printing using innovative and unconventional materials. This book comprehensively provides insights into various additive manufacturing processes, novel materials, and their properties, as well as the basic knowledge of AM process parameters, post-processing techniques, and their applications. It also explores the fundamental concepts and recent advancements in the development of novel materials for several applications, with special emphasis on platforms like AM techniques for polymers, ceramics, metallic materials, composites, nanomaterials, hydrogels, etc. Specific topics like environmental aspects of 3D printing and advanced 4D printing are also introduced. The technological aspects of AM are discussed in a concise and understandable way, with extensive illustrations. Also covered are the challenges and opportunities that arise from 3D printing with these materials. Audience The book will benefit researchers and industry engineers who work in additive manufacturing, mechanical engineering, 3D/4D printing, and materials science.
Download or read book Modeling and Simulation of Functionalized Materials for Additive Manufacturing and 3D Printing Continuous and Discrete Media written by Tarek I. Zohdi and published by Springer. This book was released on 2017-12-22 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Within the last decade, several industrialized countries have stressed the importance of advanced manufacturing to their economies. Many of these plans have highlighted the development of additive manufacturing techniques, such as 3D printing which, as of 2018, are still in their infancy. The objective is to develop superior products, produced at lower overall operational costs. For these goals to be realized, a deep understanding of the essential ingredients comprising the materials involved in additive manufacturing is needed. The combination of rigorous material modeling theories, coupled with the dramatic increase of computational power can potentially play a significant role in the analysis, control, and design of many emerging additive manufacturing processes. Specialized materials and the precise design of their properties are key factors in the processes. Specifically, particle-functionalized materials play a central role in this field, in three main regimes: (1) to enhance overall filament-based material properties, by embedding particles within a binder, which is then passed through a heating element and the deposited onto a surface, (2) to “functionalize” inks by adding particles to freely flowing solvents forming a mixture, which is then deposited onto a surface and (3) to directly deposit particles, as dry powders, onto surfaces and then to heat them with a laser, e-beam or other external source, in order to fuse them into place. The goal of these processes is primarily to build surface structures which are extremely difficult to construct using classical manufacturing methods. The objective of this monograph is introduce the readers to basic techniques which can allow them to rapidly develop and analyze particulate-based materials needed in such additive manufacturing processes. This monograph is broken into two main parts: “Continuum Method” (CM) approaches and “Discrete Element Method” (DEM) approaches. The materials associated with methods (1) and (2) are closely related types of continua (particles embedded in a continuous binder) and are treated using continuum approaches. The materials in method (3), which are of a discrete particulate character, are analyzed using discrete element methods.
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 360 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 Innovative Product Development by Additive Manufacturing 2022 written by Roland Lachmayer and published by Springer Nature. This book was released on 2023-03-07 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book consists of a collection of papers from a corresponding conference regarding additive manufacturing. The yearly conference used to be held in German under the title "Konstruktion für die Additive Fertigung" and is held in English since last year. The topics are Specifications, potentials, and solutions Contributions to specifications on components and processes and methods for assessing the suitability of components and the application of additive manufacturing and finding solutions for concepts and design Design and optimization Contributions to the development and design of components, their design to ensure functional requirements and manufacturability, and methods and tools for optimization components Simulation, validation, and quality assurance Contributions to approaches for the computer-aided and physical validation of components, the testing of components and material, and measures to ensure quality aspects Process chain and business models Contributions to their integration of additive manufacturing processes into existing processes and measures to increase value creation and the creation of new business models.
Download or read book Simulation of Additive Manufacturing using Meshfree Methods written by Christian Weißenfels and published by Springer Nature. This book was released on 2021-10-29 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a detailed instruction to virtually reproduce the processes of Additive Manufacturing on a computer. First, all mathematical equations needed to model these processes are presented. Due to their flexibility, meshfree methods represent optimal computational solution schemes to simulate Additive Manufacturing processes. On the other hand, these methods usually do not guarantee an accurate solution. For this reason, this monograph is dedicated in detail to the necessary criteria for computational solution schemes to provide accurate results. Several meshfree methods are examined with respect to these conditions. Two different 3D printing techniques are presented in detail. The results obtained from the simulation are investigated and compared with experimental data. This work is addressed to both scientists and professionals working in the field of development who are interested to learn the secrets behind meshfree methods or get into the modeling of Additive Manufacturing.
Download or read book Additive Manufacturing written by Steinar Westhrin Killi and published by CRC Press. This book was released on 2017-09-07 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive manufacturing has matured from rapid prototyping through the now popular and "maker"-oriented 3D printing, recently commercialized and marketed. The terms describing this technology have changed over time, from "rapid prototyping" to "rapid manufacturing" to "additive manufacturing," which reflects largely a focus on technology. This book discusses the uptake, use, and impact of the additive manufacturing and digital fabrication technology. It augments technical and business-oriented trends with those in product design and design studies. It includes a mix of disciplinary and transdisciplinary trends and is rich in case and design material. The chapters cover a range of design-centered views on additive manufacturing that are rarely addressed in the main conferences and publications, which are still mostly, and importantly, concerned with tools, technologies, and technical development. The chapters also reflect dialogues about transdisciplinarity and the inclusion of domains such as business and aesthetics, narrative, and technology critique. This is a great textbook for graduate students of design, engineering, computer science, marketing, and technology and also for those who are not students but are curious about and interested in what 3D printing really can be used for in the near future.
Download or read book Multi dimensional Additive Manufacturing written by Soshu Kirihara and published by Springer Nature. This book was released on 2020-11-17 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, basic sciences and applied technologies in 3D printing and 2D coating—including 2D surface modulations on 3D printed objects—are described to explore and to image novel multidimensional additive manufacturing. Renowned researchers were selected from universities and national institutes as authors by the editorial board established in the Surface Modification Research and Technology Committee of the Japan Welding Engineering Society. The main readers of this book are expected to be graduate students, professional researchers, and engineers. Here, they can acquire abundant knowledge of digital design concepts and functional evaluations, enabling them practice material selection and process parameter optimization in novel additive manufacturing.
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 A Guide to Additive Manufacturing written by Damir Godec and published by Springer Nature. This book was released on 2022-09-12 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book gives both a theoretical and practical overview of several important aspects of additive manufacturing (AM). It is written in an educative style to enable the reader to understand and apply the material. It begins with an introduction to AM technologies and the general workflow, as well as an overview of the current standards within AM. In the following chapter, a more in-depth description is given of design optimization and simulation for AM in polymers and metals, including practical guidelines for topology optimization and the use of lattice structures. Special attention is also given to the economics of AM and when the technology offers a benefit compared to conventional manufacturing processes. This is followed by a chapter with practical insights into how AM materials and processing parameters are developed for both material extrusion and powder bed fusion. The final chapter describes functionally graded AM in various materials and technologies. Throughout the book, a large number of industrial applications are described to exemplify the benefits of AM.
Download or read book Additive Manufacturing Design Processes and Applications written by Panagiotis Stavropoulos and published by Springer Nature. This book was released on 2023-07-01 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive guide to Additive Manufacturing (AM) product development. It offers a practical, reader-friendly approach to integrating the stages of product development. It covers current design and manufacturing strategies with a step-by-step approach, divided into three pillars: design, processes, and applications. The book addresses the challenges hindering the industrial application of AM and provides a roadmap for its successful implementation. It discusses specific AM case studies and hybrid AM cell and production line setups, with the goal of achieving high-quality, low-cost products that are both flexible and productive. The book concludes with an examination of Industry 4.0 capabilities in decentralized manufacturing. It is aimed to be read by researchers and professionals in industry who are interested in the development and potential of additive manufacturing, and will help to lead to wider adoption of AM.
Download or read book Report of the Workshop Predictive Theoretical Computational and Experimental Approaches for Additive Manufacturing WAM 2016 written by Xu Guo and published by Springer. This book was released on 2017-10-23 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The volume focuses on theoretical and computational approaches and involves areas such as simulation-based engineering and science, integrated computational materials engineering, mechanics, material science, manufacturing processes, and other specialized areas. Most importantly, the state-of-the-art progress in developing predictive theoretical, computational and experimental approaches for additive manufacturing is summarized.
