Download or read book Selective laser sintering of metal powders written by Paul Wade Haase and published by . This book was released on 1989 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamental Models of Selective Laser Sintering of Metal Powders written by and published by . This book was released on 2006 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project involves state-of-the-art, flindamental modeling of the laser beam-material interactions associated with Selective Laser Sintering (SLS) of single and multiple components powders. The research tasks carried out in the project include modeling of (I) coupling of laser beam and metal powders, (2) Liquid phase sintering of two-component metal powders, (3) Liquid phase sintering and Selective Laser Powder Remelting (SLPR) of single-component metal powders, and (4) the post-processing of the sintered parts with infiltration of liquid metal. The developed models are capable to handle any material combination, and can handle selective placement of different materials prior to laser scanning.
Download or read book Modeling of Selective Laser Sintering of Single component Metal Powders written by Bin Xiao and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Selective Laser Sintering (SLS) is a rapid prototyping technology which enables freeform fabrication of complex-geometry components directly from three-dimensional CAD data and is widely applied to the processing of single-component metal powders in the past years in order to manufacture functional metal components layer by layer. Laser sintering of single-component metal powders is a process in which a high-energy laser beam scans, melts, shrinks and consolidates a metal powder. This complex process includes physical effects such as heat transfer into the powder articles, radiative and convective boundary conditions, shrinkage phenomena caused by the density change, moving boundary of the melt/solid interface with phase change, fluid flow caused by surface tension and buoyancy and mass transportation in the molten pool. The inherent complexity of this process requires the construction of increasingly sophisticated models to enable a fundamental understanding of the important physical parameters such as laser intensity, scanning velocity and spacing, subcooling parameter, initial porosity and so on. For better understanding physical mechanisms during laser sintering of single-component metal particles, this dissertation develop models to investigate the physical mechanisms of selective laser sintering of single-component powders under different conditions including rapid melting, partial melting, and complete melting processes and simulate the manufacturing processes during the laser sintering processes in single-line and multiple-line scanning manners. The parametric effects on the surface temperature distribution, various interfaces in the molten pool and mushy zone, velocity distribution in the molten pool and melt/solid fraction profiles in the mushy zone are extensively analyzed.
Download or read book Modern Manufacturing Processes written by Muammer Koç and published by John Wiley & Sons. This book was released on 2019-09-04 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an in-depth understanding of the fundamentals of a wide range of state-of-the-art materials manufacturing processes Modern manufacturing is at the core of industrial production from base materials to semi-finished goods and final products. Over the last decade, a variety of innovative methods have been developed that allow for manufacturing processes that are more versatile, less energy-consuming, and more environmentally friendly. This book provides readers with everything they need to know about the many manufacturing processes of today. Presented in three parts, Modern Manufacturing Processes starts by covering advanced manufacturing forming processes such as sheet forming, powder forming, and injection molding. The second part deals with thermal and energy-assisted manufacturing processes, including warm and hot hydrostamping. It also covers high speed forming (electromagnetic, electrohydraulic, and explosive forming). The third part reviews advanced material removal process like advanced grinding, electro-discharge machining, micro milling, and laser machining. It also looks at high speed and hard machining and examines advances in material modeling for manufacturing analysis and simulation. Offers a comprehensive overview of advanced materials manufacturing processes Provides practice-oriented information to help readers find the right manufacturing methods for the intended applications Highly relevant for material scientists and engineers in industry Modern Manufacturing Processes is an ideal book for practitioners and researchers in materials and mechanical engineering.
Download or read book Analysis and Modeling of Direct Selective Laser Sintering of Two component Metal Powders written by Tiebing Chen and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct Selective Laser Sintering (SLS) is an emerging technology of Solid Freeform Fabrication (SFF) that 3-D parts are built from the metal-based powder bed with CAD data. A one-dimensional analytical model of melting in a two-component powder layer with finite thickness subjected to a constant heat flux heating and a two-dimensional numerical model of SLS of a two-component powder layer with a moving laser beam scanning were developed consecutively. Three-dimensional modeling of laser sintering of a two-component metal powder mixture under a moving Gaussian laser beam was investigated numerically at last. The effects of the moving heat source intensity, the scanning velocity, the thickness of the powder layer and the number of existing sintered layers underneath on the sintering depth, the configuration of the heat affected zone (HAZ) and the temperature distribution are discussed.
Download or read book Metal Powder Effects on Selective Laser Sintering written by Radu Bogdan Eane and published by . This book was released on 2002 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solid Freeform Fabrication A New Direction in Manufacturing written by J.J. Beaman and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid Freeform Fabrication is a set of manufacturing processes that are capable of producing complex freeform solid objects directly from a computer model of an object without part-specific tooling or knowledge. In essence, these methods are miniature manufacturing plants which come complete with material handling, information processing and materials processing. As such, these methods require technical knowledge from many disciplines; therefore, researchers, engineers, and students in Mechanical, Chemical, Electrical, and Manufacturing Engineering and Materials and Computer Science will all find some interest in this subject. Particular subareas of concern include manufacturing methods, polymer chemistry, computational geometry, control, heat transfer, metallurgy, ceramics, optics, and fluid mechanics. History of technology specialists may also find Chapter 1 of interest. Although this book covers the spectrum of different processes, the emphasis is clearly on the area in which the authors have the most experience, thermal laser processing. In particular, the authors have all been developers and inventors of techniques for the Selective Laser Sintering process and laser gas phase techniques (Selective Area Laser Deposition). This is a research book on the subject of Solid Freeform Fabrication.
Download or read book Metal Powder Based Additive Manufacturing written by Kun Zhou and published by John Wiley & Sons. This book was released on 2023-05-17 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Powder—Based Additive Manufacturing Highly comprehensive resource covering all key aspects of the current developments of metal powder—based additive manufacturing Metal Powder—Based Additive Manufacturing provides valuable knowledge and critical insights regarding the recent advances in various metal powder—based additive manufacturing techniques. This book also reviews typical powder preparation processes and highlights the significance of metal powder—based additive manufacturing for various industrial applications. The key features covered in this book: A rigorous overview of the underlying theories and practical applications of metal powder—based additive manufacturing techniques, including laser powder bed fusion, electron beam melting, laser-based directed energy deposition, and metal binder jetting. An expansive introduction of each technique and its significance pertaining to the printing processes, metallurgical defects, powder materials, equipment, and the microstructures and mechanical properties of the printed parts. A deep exploration of the preparation processes of metal powders for additive manufacturing and the effects of different processes on the powder properties. Comprehensive case studies of parts printed by metal powder—based additive manufacturing for various industrial applications. By providing extensive coverage of relevant concepts in the field of metal powder—based 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, powder metallurgy, physics, and chemistry. The rich research experience of the authors in additive manufacturing ensures that the readers are provided with both an in-depth understanding and informative technical guidance of metal powder—based additive manufacturing.
Download or read book Powder Metallurgy written by Leszek A. Dobrzański and published by BoD – Books on Demand. This book was released on 2017-03-29 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the fundamentals and the role of powder metallurgy in contemporary technologies and the state of the art of classical powder metallurgy technologies and a general description of new variants and special and hybrid technologies used in powder metallurgy. The next part includes over a dozen case studies provided in the following chapters, comprehensively describing authors' accomplishments of numerous teams from different countries across the world in advanced research areas relating to powder metallurgy and to special and hybrid technologies. The detailed information, largely deriving from own and original research and R
Download or read book Study of the selective laser sintering of metal polymer powders written by Badrinarayan Balasubramanian and published by . This book was released on 1995 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Liquid Phase Sintering written by R.M. German and published by Springer Science & Business Media. This book was released on 2013-12-14 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past few years there has been rapid growth in the activities involving particulate materials because of recognized advantages in manufacturing. This growth is attributed to several factors; i) an increased concern over energy utilization, ii) a desire to better control microstructure in engineermg materials, iii) the need for 1mproved material economy, iv) societal and economic pressures for higher productivity and quality, v) requirements for unique property combinations for high performance applica tions, and vi) a desire for net shape forming. Accordingly, liquid phase sintering has received increased attention as part of the growth in particulate materials processing. As a consequence, the commercial applications for liquid phase sintering are expanding rapidly. This active and expanding interest is not well served by available texts. For this reason I felt it was appropriate to write this book on liquid phase sintering. The technology of liquid phase sintering IS quite old and has been in use in the ceramics industry for many centuries. However, the general perception among materials and manufacturing engineers is that liquid phase sintering is still a novel technique. I believe the diverse technological appli cations outlined in this book will dispel I such impressions. Liquid phase. sintering has great value in fabricating several unique materials to near net shapes and will continue to expand in applications as the fundamental attrib utes are better appreciated. I am personally involved with several uses for liquid phase sintering.
Download or read book Powders and Bulk Solids written by Dietmar Schulze and published by Springer Nature. This book was released on 2021-09-02 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book concentrates on powder flow properties, their measurement and applications. These topics are explained starting from the interactions between individual particles up to the design of silos. A wide range of problems are discussed – such as flow obstructions, segregation, and vibrations. The goal is to provide a deeper understanding of the powder flow, and to show practical solutions.
Download or read book Metallic Foam Bone written by Cuie Wen and published by Woodhead Publishing. This book was released on 2016-11-14 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic Foam Bone: Processing, Modification and Characterization and Properties examines the use of porous metals as novel bone replacement materials. With a strong focus on materials science and clinical applications, the book also examines the modification of metals to ensure their biocompatibility and efficacy in vivo. Initial chapters discuss processing and production methods of metals for tissue engineering and biomedical applications that are followed by topics on practical applications in orthopedics and dentistry. Finally, the book addresses the surface science of metallic foam and how it can be tailored for medical applications. This book is a valuable resource for materials scientists, biomedical engineers, and clinicians with an interest in innovative biomaterials for orthopedic and bone restoration. - Introduces biomaterials researchers to a promising, rapidly developing technology for replacing hard tissue - Increases familiarity with a range of technologies, enabling materials scientists and engineers to improve the material properties of porous metals - Explores the clinical applications of metal foams in orthopedics and dentistry
Download or read book Laser Additive Manufacturing written by Milan Brandt and published by Woodhead Publishing. This book was released on 2016-09-01 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laser Additive Manufacturing: Materials, Design, Technologies, and Applications provides the latest information on this highly efficient method of layer-based manufacturing using metals, plastics, or composite materials. The technology is particularly suitable for the production of complex components with high precision for a range of industries, including aerospace, automotive, and medical engineering. This book provides a comprehensive review of the technology and its range of applications. Part One looks at materials suitable for laser AM processes, with Part Two discussing design strategies for AM. Parts Three and Four review the most widely-used AM technique, powder bed fusion (PBF) and discuss other AM techniques, such as directed energy deposition, sheet lamination, jetting techniques, extrusion techniques, and vat photopolymerization. The final section explores the range of applications of laser AM. Provides a comprehensive one-volume overview of advances in laser additive manufacturing Presents detailed coverage of the latest techniques used for laser additive manufacturing Reviews both established and emerging areas of application
Download or read book Selective Laser Sintering Additive Manufacturing Technology written by Chunze Yan and published by Academic Press. This book was released on 2020-12-07 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selective Laser Sintering Additive Manufacturing Technology is a unique and comprehensive guide to this emerging technology. It covers in detail the equipment, software algorithms and control systems, material preparations and process technology, precision control, simulation analysis, and provides examples of applications of selective laser sintering (SLS). SLS technology is one of the most promising advances in 3D printing due to the high complexity of parts it can form, short manufacturing cycle, low cost, and wide range of materials it is compatible with. Typical examples of SLS technology include SLS manufacturing casting molds, sand molds (core), injection molds with conformal cooling channels, and rapid prototyping of ceramic and plastic functional parts. It is already widely used in aviation, aerospace, medical treatment, machinery, and numerous other industries. Drawing on world-leading research, the authors provide state of the art descriptions of the technologies, tools, and techniques which are helping academics and engineers use SLS ever more effectively and widely. Provides instructions for how to accurately use SLS for forming Analyses the numerical simulation methods for key SLS technologies Addresses the use of SLS for a range of materials, including polymer, ceramic and coated sand powder
Download or read book Selective Laser Melting for Metal and Metal Matrix Composites written by Bo Song and published by Academic Press. This book was released on 2020-10-07 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Selective Laser Melting for Metal Matrix Composites explains in detail the essential preparation and characterization methods for this technology, and explores a range of innovative applications. The subject covered by this book has been the focus of increasing levels of research both in industry and academia globally. The authors have drawn on their influential cutting-edge research to provide a much-needed guide for those investigating or applying this technology. The novel material preparation methodologies addressed here provide new opportunities to expand the applications of additive manufacturing, particularly in industries such as aerospace, medical, automotive, and electronics. These applications, as well as the theory behind this technology are also covered in this book, providing a complete guide which is appropriate for engineers in industry as well as researchers. - Provides descriptions of the microstructure and properties of the components produced - Explains emerging applications of this technology in a range of industries - Covers a range of different materials including iron base, and aluminium and titanium composites - Summarises the current research landscape in this field, and signposts the problems in metal matrix composites which remain to be solved
Download or read book 3D and 4D Printing of Polymer Nanocomposite Materials written by Kishor Kumar Sadasivuni and published by Elsevier. This book was released on 2019-10-11 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: 3D and 4D Printing of Polymer Nanocomposite Materials: Processing, Applications, and Challenges covers advanced 3D and 4D printing processes and the latest developments in novel polymer-based printing materials, thus enabling the reader to understand and benefit from the advantages of this groundbreaking technology. The book presents processes, materials selection, and printability issues, along with sections on the preparation of polymer composite materials for 3D and 4D printing. Across the book, advanced printing techniques are covered and discussed thoroughly, including fused deposition modeling (FDM), selective laser sintering (SLS), selective laser melting (SLM), electron beam melting (EBM), inkjet 3D printing (3DP), stereolithography (SLA), and 3D plotting. Finally, major applications areas are discussed, including electronic, aerospace, construction and biomedical applications, with detailed information on the design, fabrication and processing methods required in each case. Provides a thorough, clear understanding of polymer preparation techniques and 3D and 4D printing processes, with a view to specific applications Examines synthesis, formation methodology, the dispersion of fillers, characterization, properties, and performance of polymer nanocomposites Explores the possibilities of 4D printing, covering the usage of stimuli responsive hydrogels and shape memory polymers
