Download or read book Investigation of Effect of Process Parameters on Multilayer Builds by Direct Metal Deposition written by Tarak Amine and published by . This book was released on 2015 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Multilayer direct laser deposition (DLD) is a fabrication process through which parts are fabricated by creating a molten pool into which metal powder is injected as. During fabrication, complex thermal activity occurs in different regions of the build; for example, newly deposited layers will reheat previously deposited layers. The objective of this study was to provide insight into the thermal activity that occurs during the DLD process. This work focused on the effect of the deposition parameters of deposited layers on the microstructure and mechanical properties of the previously deposited layers. Varying the parameters was shown to produce different effects on the microstructure morphology and property values, presumably resulting from in-situ quench and tempering. A commercial ABAQUS/CAE software was used to model this process by developing a thermo-mechanical 3D finite element model. This work presents a 3D heat transfer model that considers the continuous addition of mass in front of a moving laser beam using ABAQUS/CAE software. The model assumes the deposit geometry appropriate to each experimental condition and calculates the temperature distribution, cooling rates and re-melted layer depth, which can affect the final microstructure. Model simulations were qualitatively compared with experimental results acquired in situ using a K-type thermocouple. Moreover, the work focused on the effect of cooling rate and other processing variables on microstructure and mechanical properties. The influence of the cooling rate on the microstructure and mechanical properties was investigated. The differed cooling rate led to varied grain size and resulted in affected varied hardness and tensile strength."--Abstract, page iv.

Download or read book Metal Additive Manufacturing written by Ehsan Toyserkani and published by John Wiley & Sons. This book was released on 2021-10-25 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: METAL ADDITIVE MANUFACTURING A comprehensive review of additive manufacturing processes for metallic structures Additive Manufacturing (AM)—also commonly referred to as 3D printing—builds three-dimensional objects by adding materials layer by layer. Recent years have seen unprecedented investment in additive manufacturing research and development by governments and corporations worldwide. This technology has the potential to replace many conventional manufacturing processes, enable the development of new industry practices, and transform the entire manufacturing enterprise. Metal Additive Manufacturing provides an up-to-date review of all essential physics of metal additive manufacturing techniques with emphasis on both laser-based and non-laser-based additive manufacturing processes. This comprehensive volume covers fundamental processes and equipment, governing physics and modelling, design and topology optimization, and more. The text adresses introductory, intermediate, and advanced topics ranging from basic additive manufacturing process classification to practical and material design aspects of additive manufacturability. Written by a panel of expert authors in the field, this authoritative resource: Provides a thorough analysis of AM processes and their theoretical foundations Explains the classification, advantages, and applications of AM processes Describes the equipment required for different AM processes for metallic structures, including laser technologies, positioning devices, feeder and spreader mechanisms, and CAD software Discusses the opportunities, challenges, and current and emerging trends within the field Covers practical considerations, including design for AM, safety, quality assurance, automation, and real-time control of AM processes Includes illustrative cases studies and numerous figures and tables Featuring material drawn from the lead author’s research and professional experience on laser additive manufacturing, Metal Additive Manufacturing is an important source for manufacturing professionals, research and development engineers in the additive industry, and students and researchers involved in mechanical, mechatronics, automatic control, and materials engineering and science.

Download or read book Bulk Metallic Glasses and Their Composites written by Muhammad Musaddique Ali Rafique and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-09-20 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a comprehensive state-of-the-art review on the topic of bulk metallic glass matrix composites and understanding of mechanisms of development of composite microstructure. It discusses mechanisms of formation and toughening both during conventional casting routes and additive manufacturing. The second edition encompasses new studies and highlights advancement in mechanical properties, characterization, processing and applications.

Download or read book Advances in Manufacturing Technology XXX written by Y.M. Goh and published by IOS Press. This book was released on 2016-08-15 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: The urgent need to keep pace with the accelerating globalization of manufacturing in the 21st century has produced rapid advancements in manufacturing technology, research and expertise. This book presents the proceedings of the 14th International Conference on Manufacturing Research (ICMR 2016), entitled Advances in Manufacturing Technology XXX. The conference also incorporated the 31st National Conference on Manufacturing Research, and was held at Loughborough University, Loughborough, UK, in September 2016. The ICMR conference is renowned as a friendly and inclusive environment which brings together a broad community of researchers who share the common goal of developing and managing the technologies and operations key to sustaining the success of manufacturing businesses. The proceedings is divided into 14 sections, including: Manufacturing Processes; Additive Manufacturing; Manufacturing Materials; Advanced Manufacturing Technology; Product Design and Development, as well as many other aspects of manufacturing management and innovation. It contains 92 papers, which represents an acceptance rate of 75%. With its comprehensive overview of current developments, this book will be of interest to all those involved in manufacturing today.

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 Advanced Laser Process for Surface Enhancement written by Jianhua Yao and published by Springer Nature. This book was released on 2020-11-30 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two typical hybrid laser surface modification processes, i.e. electro/magnetic field aided laser process and supersonic laser deposition technology, are introduced in the book, to solve the common problems in quality control and low efficiency of the laser-only surface modification technology, high contamination and high consumption of the traditional surface modification technology. This book focuses on the principle, characteristics, special equipment, process and industrial applications of the hybrid laser surface modification processes based on the recent research results of the author’s group, and provides theoretical guidance and engineering reference for the researchers and engineers engaging in the field of surface engineering and manufacturing.

Download or read book Proceedings of the 7th International Conference and Exhibition on Sustainable Energy and Advanced Materials ICE SEAM 2021 Melaka Malaysia written by Mohd Fadzli Bin Abdollah and published by Springer Nature. This book was released on 2022-06-30 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the proceedings of the 7th International Conference and Exhibition on Sustainable Energy and Advanced Materials (ICE-SEAM), held on November 2021, a virtual conference organized in Melaka, Malaysia. It focuses on two relatively broad areas—advanced materials and sustainable energy—and a diverse range of subtopics: Advanced materials and related technologies: liquid crystals, semiconductors, superconductors, optics, lasers, sensors, mesoporous materials, nanomaterials, smart ferrous materials, amorphous materials, crystalline materials, biomaterials, metamaterials, composites, polymers, design, analysis, development, manufacturing, processing and testing for advanced materials. Sustainable energy and related technologies: energy management, storage, conservation, industrial energy efficiency, energy-efficient buildings, energy-efficient traffic systems, energy distribution, energy modeling, hybrid and integrated energy systems, fossil energy, nuclear energy, bioenergy, biogas, biomass geothermal power, non-fossil energies, wind energy, hydropower, solar photovoltaic, fuel cells, electrification, and electrical power systems and controls.

Download or read book Energy Analysis for Process Parameter Prediction of Direct Energy Deposition Metal Additive Manufacturing written by Daniel Pulscher and published by . This book was released on 2019 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Additive Manufacturing with the Direct Energy Deposition (DED) process allows for rapid prototyping and low-volume custom manufacturing of complex geometries at a lower cost than traditional manufacturing methods. Direct energy deposition is a complex process having many inter-related process parameters that affect the overall quality and mechanical properties of the build. When new powder feedstocks are used, calibrating these process parameters is typically done empirically in trials that can contain more than a hundred different combinations of parameters. This time-consuming process can be reduced by performing an analytical analysis on how the energy from the laser transfers into the metal using the physical properties of the powder paired with empirical relations to predict where optimal process parameters will occur.Typical builds use a fixed process parameter set and do not feature any in-situ process control. Previous research has shown that combining the variables of powder flow and travel speed into a ratio allows for consistent results. For this thesis the relation was improved upon to compare the bead volume per pass to the powder flow improving the relation and allowing powder flow to be predicted. The energy analysis was used to improve build quality of different parameter sets resulting in reduction of porosity and nearly fully dense parts. A methodology for process parameter prediction is introduced and validated using the analytical and empirical relations proved in this thesis. The ability to increase bead size allows for the process to be more efficient in time, energy, and powder usage, lessening time per part and cost for industry. The ability to have beads of different dimensions also allows for large deposition to occur followed by smaller deposits for fine features with uniform properties.

Download or read book Proceedings of the 36th International MATADOR Conference written by Srichand Hinduja and published by Springer Science & Business Media. This book was released on 2010-08-05 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented here are 130 refereed papers given at the 36th MATADOR Conference held at The University of Manchester in July 2010. The MATADOR series of conferences covers the topics of Manufacturing Automation and Systems Technology, Applications, Design, Organisation and Management, and Research. The proceedings of this Conference contain original papers contributed by researchers from many countries on different continents. The papers cover the principles, techniques and applications in aerospace, automotive, biomedical, energy, consumable goods and process industries. The papers in this volume reflect: • the importance of manufacturing to international wealth creation; • the emerging fields of micro- and nano-manufacture; • the increasing trend towards the fabrication of parts using lasers; • the growing demand for precision engineering and part inspection techniques; and • the changing trends in manufacturing within a global environment.

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 Additive Manufacturing Second Edition written by Amit Bandyopadhyay and published by CRC Press. This book was released on 2019-10-16 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of additive manufacturing is growing dynamically as the interest is persisting from manufacturing sector, including other sectors as well. Conceptually, additive manufacturing is a way to build parts without using any part-specific tooling or dies from the computer-aided design (CAD) file of the part. Second edition of Additive Manufacturing highlights the latest advancements in the field, taking an application oriented approach. It includes new material on traditional polymer based rapid prototyping technologies, additive manufacturing of metals and alloys including related design issues. Each chapter comes with suggested reading, questions for instructors and PowerPoint slides.

Download or read book Additive Manufacturing of Titanium Alloys written by Bhaskar Dutta and published by Butterworth-Heinemann. This book was released on 2016-06-17 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive Manufacturing of Titanium Alloys: State of the Art, Challenges and Opportunities provides alternative methods to the conventional approach for the fabrication of the majority of titanium components produced via the cast and wrought technique, a process which involves a considerable amount of expensive machining. In contrast, the Additive Manufacturing (AM) approach allows very close to final part configuration to be directly fabricated minimizing machining cost, while achieving mechanical properties at least at cast and wrought levels. In addition, the book offers the benefit of significant savings through better material utilization for parts with high buy-to-fly ratios (ratio of initial stock mass to final part mass before and after manufacturing). As titanium additive manufacturing has attracted considerable attention from both academicians and technologists, and has already led to many applications in aerospace and terrestrial systems, as well as in the medical industry, this book explores the unique shape making capabilities and attractive mechanical properties which make titanium an ideal material for the additive manufacturing industry. - Includes coverage of the fundamentals of microstructural evolution in titanium alloys - Introduces readers to the various Additive Manufacturing Technologies, such as Powder Bed Fusion (PBF) and Directed Energy Deposition (DED) - Looks at the future of Titanium Additive Manufacturing - Provides a complete review of the science, technology, and applications of Titanium Additive Manufacturing (AM)

Download or read book Applied Laser Tooling written by Olivério D.D. Soares and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: The invention of the Laser, 25 years ago, has become an innovation with established industrial technology extended through diverse areas of economic viability (a 25% sales annual growth), and promising market perspectives. In organizing an European Intensive Course on Applied Laser Tooling, it seemed opportune to bring together an international group of scientists to provide an appraisal of industrial Lasers, system integration, and sensitive areas of Laser beam material interaction, while emphasizing those areas which promise to have major impact both in science and technology. Tutorial papers and reports on latest developments both in research and industrial manufacturing were complemented by video and film projections to show the wide variety of applications in industry, stressing the combination of Lasers with other technologies, mainly CNC and Robots. The large participation by the industry fulfilled the intended interaction and cross-fertilization between the scientific, technological and industrial community, reinforcing the innovative capacity readily demonstrated at panel discussions. It was neither possible nor planned to cover all the aspects in full depth. Efforts were addressed to selected areas where discussion of advanced knowled~e and technology topics would stimulate further progress of Laser tooling (in main directions: software, hardware and peopleware). Laser tooling was then discussed in light of its major applications covering Laser beam robotic manipulation towards flexible manufacturing systems. The following articles give a fair account of the course programme.

Download or read book Sustainable Design and Manufacturing 2019 written by Peter Ball and published by Springer. This book was released on 2019-06-27 with total page 627 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume consists of 52 peer-reviewed papers, presented at the International Conference on Sustainable Design and Manufacturing (SDM-19) held in Budapest, Hungary in July 2019. Leading-edge research into sustainable design and manufacturing aims to enable the manufacturing industry to grow by adopting more advanced technologies, and at the same time improve its sustainability by reducing its environmental impact. The topic includes the sustainable design of products and services; the sustainable manufacturing of all products; energy efficiency in manufacturing; innovation for eco-design; circular economy; industry 4.0; industrial metabolism; automotive and transportation systems. Application areas are wide and varied. The book will provide an excellent overview of the latest developments in the Sustainable Design and Manufacturing Area.

Download or read book Optimization Methods written by Marco Cavazzuti and published by Springer Science & Business Media. This book was released on 2012-09-11 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about optimization techniques and is subdivided into two parts. In the first part a wide overview on optimization theory is presented. Optimization is presented as being composed of five topics, namely: design of experiment, response surface modeling, deterministic optimization, stochastic optimization, and robust engineering design. Each chapter, after presenting the main techniques for each part, draws application oriented conclusions including didactic examples. In the second part some applications are presented to guide the reader through the process of setting up a few optimization exercises, analyzing critically the choices which are made step by step, and showing how the different topics that constitute the optimization theory can be used jointly in an optimization process. The applications which are presented are mainly in the field of thermodynamics and fluid dynamics due to the author's background.

Download or read book Electron Beam Wire Deposition Technology and Its Application written by Shuili Gong and published by Springer Nature. This book was released on 2022-05-16 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a systematic and comprehensive introduction to the technical principles, materials, processes, and equipment of the electron beam wire deposition technology (EBWD), while focusing on the research results of the author’s scientific research team engaged in this technology in China. It mainly introduces the conceptual connotation, principle, and characteristics of the EBWD technology, its position and function in the additive manufacturing technology system, the direction and trend of technological development at home and abroad, the fundamentals and application results of the EBWD technology, including technical principles, equipment technology, special materials, manufacturing technology, quality testing, and application practices. So this book can serve as a reference book for teachers, students, and scientific researchers in scientific research institutions who are engaged in relevant studies.

Download or read book Recommended Values of Thermophysical Properties for Selected Commercial Alloys written by K. C. Mills and published by Woodhead Publishing. This book was released on 2002 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: