Download or read book An Investigation of Modelling and Measurement of Surface Generation in Single point Diamond Turning of Microstructure Pattern Rollers written by Chung Hong Mak and published by . This book was released on 2016 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the results of the development of the replica-based measurement method, a series of experiments was conducted to study the factors affecting the surface generation in SPDT of the microstructure pattern on precision rollers. The results show that there are process factors and material factors which affect the surface generation in SPDT of microstructure pattern rollers. The process factors include depth of cut, width of cut, and tool geometry, while the material effect due to material swelling and recovery is found to contribute significantly to the surface generation. The results provide an important means for the modelling and measurement of a V-groove patterned roller. To make the surface generation of V-groove pattern rollers more predictable, a model-based simulation system has been established for predicting the 3D surface topography and form error of the V-groove pattern fabricated on precision rollers. The system takes into account the kinematic and geometrical errors of the ultra-precision machine as well as the material effect in SPDT of V-groove patterns on precision rollers. It is built based on a kinematic model, a geometric error model, an empirical analysis of material effect and a surface generation model. A prototype system has been built using a Matlab software package and a series of simulation and cutting experiments were conducted to assess the performance of the system. The predicted results by the system were found to agree well with the measured results. On the whole, this study not only contributes significantly to a better understanding of the factors affecting surface generation in SPDT of micro-structure pattern rollers but also provides an important means for the prediction and measurement of surface quality of the fabricated microstructure patterns. This is vital for the technological advancement of ultra-precision machining and precision measurement technologies.
Download or read book Surface Generation in Ultra precision Diamond Turning written by W. B. Lee and published by John Wiley & Sons. This book was released on 2003-02-07 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Engineering Research Series title. One of the remarkable achievements of modern manufacturing techniques is the ability to achieve nano-metre surface finishes. Ultraprecision machining based on single-point diamond turning (SPDT) is a very important technique in the manufacture of high-precision components where surface finish is critical. Complex optical surfaces, for example, can be produced without the need for post-machining polishing. This book focuses on the aspect of modelling nano-surface generation in ultra precision SPDT. Potential industrial applications in the prediction of surface quality, the process optimization, and precision mould manufacturing are also studies. The essential differences between single-point diamond turning and conventional machining are described. The history and technology of single-point diamond turning are presented and single chapters emphasize the related metrology and cutting mechanics. Important aspects of surface generation are also discussed. Features of the text are the sound approach, systematic mathematical modelling, and computer-aided simulation of surface generation in the development of surfaces exhibiting nano-surface qualities. TOPICS COVERED INCLUDE: Fundamentals of ultra-precision diamond turning technology Cutting mechanics and analysis of microcutting force variation Mechanisms of surface generation Characterization and modelling of nano-surface generation Computer-aided simulation of nano-surface generation Diamond turning of aspheric optics. Based upon the extensive experience of the authors Surface Generation in Ultra-precision Diamond Turning: Modelling and Practices will be of interest to engineers, scientists, and postgraduate students.
Download or read book Investigation of the Optical Effects of Single Point Diamond Machined Surfaces and the Applications of Micro Machining written by Lei Li and published by . This book was released on 2009 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The ultraprecision Single Point Diamond Turning (SPDT) technology has been developed for over 40 years and has been successfully applied to numerous fields. At present, the ultraprecision single point diamond turning technology already expanded to Single Point Diamond Machining (SPDM) technology, which includes several related processes in addition to the more conventional single point diamond turning. The other related processes are Fast Tool Servo (FTS), Slow Tool Servo (STS), broaching, and fly cutting. Though this technology has many notable merits, for example it can achieve micro meter or even sub micron form accuracy and nano meter surface roughness, there still has some drawbacks. One of the objectives of this research is to investigate one of these drawbacks, the diffraction and scattering of the ultraprecision single point diamond machined surfaces. Another objective is to extend the application of the SPDM by developing new design and new machining processes for freeform micro devices used in optical, mechanical, electronic, and biomedical fields. The mechanism and model of the ultraprecision single point diamond turning and micro cutting were first reviewed and discussed. The related subjects to the SPDT and micro cutting were also involved. The optical effects of diamond machined surfaces were studied. The diffraction and scattering generated from the diamond machined surfaces was analytically and experimentally studied. The influences from machining parameters, such as tool mark spacing, feedrate, spindle speed, tool radius, tool condition and different diamond machining process were considered. An empirical relationship between the machining conditions and the first order diffraction from the diamond machined surfaces was setup. This model can be used to select optimal machining conditions for diamond machining process. The design, machining and testing of microlens arrays by using SPDM process were introduced. Two microlens array examples were given. One is a 5 by 5 matrix arranged concave microlens array on flat brass substrate. The other one is a circular arranged 3D microlens array, which has 341 plano-convex micro lenslets, on a thin spherical PMMA substrate. Using the fabricated 3D microlens array, a 3D micro projection system was developed. The formed micro pattern dimension was 340 um by 460 um, giving an overall projection ratio of 34:1. It has been demonstrated that a low cost and simple manufacturing process for true 3D micro scale structures on non-planar substrates based on microlenses can be realized. Last but not least, an affordable polymer SAR micromixer was developed based on a high accuracy, low cost, and flexible micro machining process. Specifically both the mixing performance and the fabrication process were carefully studied. An improved design of the SAR micromixer was also given, the mixing efficiency of the two designs were 0.11 and 0.065 respectively.
Download or read book Modeling and Experimental Investigation of Spindle Dynamic Errors and Surface Generation in Ultra precision Diamond Turning written by Peng Huang and published by . This book was released on 2016 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the second part, a comprehensive dynamic surface generation model with consideration of the spindle dynamics, cutting mechanism and machining error is proposed. Firstly, an algorithm for the cutting force calculation and surface generation is developed. This algorithm takes into account the effect of minimum chip thickness and elastic recovery. A groove cutting experiment was conducted to verify the effectiveness of the algorithm. The experimental results indicate that the algorithm is capable of addressing the minimum chip thickness and elastic recovery in the micro cutting process. This algorithm is integrated into the comprehensive dynamic surface generation model. The simulated and measured surface topographies indicate that the low frequency enveloping phenomenon due to double frequency vibration of the spindle has a significant effect on the surface topography. The surface topography in cylindrical turning changes with different spindle speeds, even though the feed rate per revolution remains unchanged. In ultra-precision machining, the requirement of ultra-high machining accuracy and ultra-smooth surface roughness makes the effects of spindle errors on form accuracy and surface finish of machined components highly significant, even though the spindle errors can be down to the nanometric range. Thus, it is very significant for this research to investigate the effect of spindle errors on machining accuracy and surface roughness with experimental and theoretical methods. Based on the investigation, the spindle unbalance induced eccentricity, double frequency vibration, as well as the position drift of the AAL of the ABS have been identified. The development of the comprehensive dynamic surface generation model with consideration of spindle dynamics, effect of tool edge radius and machining error can enable optimization of the cutting conditions in ultra-precision diamond turning.
Download or read book Carbon Black written by Jean-Baptiste Donnet and published by Routledge. This book was released on 2018-05-04 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this reference provides comprehensive examinations of developments in the processing and applications of carbon black, including the use of new analytical tools such as scanning tunnelling microscopy, Fourier transform infrared spectroscopy and inverse gas chromatography.;Completely rewritten and updated by numerous experts in the field to reflect the enormous growth of the field since the publication of the previous edition, Carbon Black: discusses the mechanism of carbon black formation based on recent advances such as the discovery of fullerenes; elucidates micro- and macrostructure morphology and other physical characteristics; outlines the fractal geometry of carbon black as a new approach to characterization; reviews the effect of carbon black on the electrical and thermal conductivity of filled polymers; delineates the applications of carbon black in elastomers, plastics, and zerographic toners; and surveys possible health consequences of exposure to carbon black.;With over 1200 literature citations, tables, and figures, this resource is intended for physical, polymer, surface and colloid chemists; chemical and plastics engineers; spectroscopists; materials scientists; occupational safety and health physicians; and upper-level undergraduate and graduate students in these disciplines.
Download or read book Engineering Materials 2 written by Michael F. Ashby and published by Elsevier. This book was released on 2014-06-28 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a thorough explanation of the basic properties of materials; of how these can be controlled by processing; of how materials are formed, joined and finished; and of the chain of reasoning that leads to a successful choice of material for a particular application. The materials covered are grouped into four classes: metals, ceramics, polymers and composites. Each class is studied in turn, identifying the families of materials in the class, the microstructural features, the processes or treatments used to obtain a particular structure and their design applications. The text is supplemented by practical case studies and example problems with answers, and a valuable programmed learning course on phase diagrams.
Download or read book Ceramic Abstracts written by and published by . This book was released on 1997 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hybrid Machining written by Xichun Luo and published by Academic Press. This book was released on 2018-06-27 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hybrid Machining: Theory, Methods, and Case Studies covers the scientific fundamentals, techniques, applications and real-world descriptions of emerging hybrid machining technology. This field is advancing rapidly in industrial and academic contexts, creating a great need for the fundamental and technical guidance that this book provides. The book includes discussions of basic concepts, process design principles, standard hybrid machining processes, multi-scale modeling approaches, design, on-machine metrology and work handling systems. Readers interested in manufacturing systems, product design or machining technology will find this one-stop guide to hybrid machining the ideal reference. Includes tables of recommended processing parameters for key engineering materials/products for each hybrid machining process Provides case studies covering real industrial applications Explains how to use multiscale modeling for hybrid machining
Download or read book Modern Machining Technology written by Bijoy Bhattacharyya and published by Academic Press. This book was released on 2019-09-17 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Machining Technology: Advanced, Hybrid, Micro Machining and Super Finishing Technology explores complex and precise components with challenging shapes that are increasing in demand in industry. As the first book to cover all major technologies in this field, readers will find the latest technical developments and research in one place, allowing for easy comparison of specifications. Technologies covered include mechanical, thermal, chemical, micro and hybrid machining processes, as well as the latest advanced finishing technologies. Each topic is accompanied by a basic overview, examples of typical applications and studies of performance criteria. In addition, readers will find comparative advantages, model questions and solutions. Addresses a broad range of modern machining techniques, providing specifications for easy comparison Includes descriptions of the main applications for each method, along with the materials or products needed Provides the very latest research in processes, including hybrid machining
Download or read book Micromanufacturing of Metallic Materials written by Jingwei Zhao and published by MDPI. This book was released on 2021-01-13 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Product miniaturization is a trend for facilitating product usage, enabling product functions to be implemented in microscale geometries, and aimed at reducing product weight, volume, cost and pollution. Driven by ongoing miniaturization in diverse areas, including medical devices, precision equipment, communication devices, micro-electromechanical systems and microsystems technology, the demands for micro metallic products have been tremendously increased. Such a trend requires the development of advanced technology for the micromanufacturing of metallic materials, with regard to producing high-quality micro metallic products that possess excellent dimensional tolerances, the required mechanical properties and improved surface quality. Micromanufacturing differs from conventional manufacturing technology in terms of materials, processes, tools, and machines and equipment, due to the miniaturization nature of the whole micromanufacturing system, which challenges the rapid development of micromanufacturing technology. Such a background has prompted and encouraged us to publish a scholarly book on the topic of the micromanufacturing of metallic materials, with the purpose of providing readers with a valuable document that can be used in the research and development of micromanufacturing technology. This book will be useful for both theoretical and applied research aimed at micromanufacturing technology, and will serve as an important research tool, providing knowledge to be returned to the community not only as valuable scientific literature, but also as technology, processes and productivities.
Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
Download or read book Image Analysis of Food Microstructure written by John C. Russ and published by CRC Press. This book was released on 2004-11-15 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Image Analysis of Food Microstructure offers a condensed guide to the most common procedures and techniques by which quantitative microstructural information about food can be obtained from images. The images are selected from a broad range of food items, including macroscopic images of meat and finished products such as pizza, and the microstructu
Download or read book Molded Optics written by Michael Schaub and published by CRC Press. This book was released on 2016-04-19 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: While several available texts discuss molded plastic optics, none provide information on all classes of molded optics. Filling this gap, Molded Optics: Design and Manufacture presents detailed descriptions of molded plastic, glass, and infrared optics. Since an understanding of the manufacturing process is necessary to develop cost-effective, produ
Download or read book The Science of Ceramic Machining and Surface Finishing written by Samuel J.. Schneider and published by . This book was released on 1972 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Metrology written by X. Jane Jiang and published by Academic Press. This book was released on 2020-04-08 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Metrology: Freeform Surfaces provides the perfect guide for engineering designers and manufacturers interested in exploring the benefits of this technology. The inclusion of industrial case studies and examples will help readers to implement these techniques which are being developed across different industries as they offer improvements to the functional performance of products and reduce weight and cost. Includes case studies in every chapter to help readers implement the techniques discussed Provides unique advice from industry on hot subjects, including surface description and data processing Features links to online content, including video, code and software
Download or read book Advanced Machining Processes of Metallic Materials written by Wit Grzesik and published by Elsevier. This book was released on 2016-11-15 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Machining Processes of Metallic Materials: Theory, Modelling and Applications, Second Edition, explores the metal cutting processes with regard to theory and industrial practice. Structured into three parts, the first section provides information on the fundamentals of machining, while the second and third parts include an overview of the effects of the theoretical and experimental considerations in high-level machining technology and a summary of production outputs related to part quality. In particular, topics discussed include: modern tool materials, mechanical, thermal and tribological aspects of machining, computer simulation of various process phenomena, chip control, monitoring of the cutting state, progressive and hybrid machining operations, as well as practical ways for improving machinability and generation and modeling of surface integrity. This new edition addresses the present state and future development of machining technologies, and includes expanded coverage on machining operations, such as turning, milling, drilling, and broaching, as well as a new chapter on sustainable machining processes. In addition, the book provides a comprehensive description of metal cutting theory and experimental and modeling techniques, along with basic machining processes and their effective use in a wide range of manufacturing applications. The research covered here has contributed to a more generalized vision of machining technology, including not only traditional manufacturing tasks, but also potential (emerging) new applications, such as micro and nanotechnology. Includes new case studies illuminate experimental methods and outputs from different sectors of the manufacturing industry Presents metal cutting processes that would be applicable for various technical, engineering, and scientific levels Includes an updated knowledge of standards, cutting tool materials and tools, new machining technologies, relevant machinability records, optimization techniques, and surface integrity
Download or read book Proceedings of the 34th International MATADOR Conference written by Srichand Hinduja and published by Springer Science & Business Media. This book was released on 2004-09-23 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented here are 73 refereed papers given at the 34th MATADOR Conference held at UMIST in July 2004. The MATADOR series of conferences covers the topics of Manufacturing Automation and Systems Technology, Applications, Design, Organisation and Management, and Research. The 34th proceedings contains original papers contributed by researchers from many countries on different continents. The papers cover both the technological aspect of manufacturing processes; and the systems, business and management features of manufacturing enterprise. The papers in this volume reflect: - the importance of manufacturing to international wealth creation; - the necessity of responsiveness and agility of manufacturing companies to meet market-led requirements and international chan≥ - the role of information technology and electronic communications in the growth of global manufacturing enterprises; - the impact of new technologies, new materials and processes, on the ability to produce goods of higher quality, more quickly, to meet markets needs at a lower cost. Some of the major generic developments which have taken place in these areas since the 33rd MATADOR conference was held in 2000 are reported in this volume.
