Download or read book Thermodynamic Mechanism of Cryogenic Air Minimum Quantity Lubrication Grinding written by Liu, Mingzheng and published by IGI Global. This book was released on 2024-05-02 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: The achievement of high-efficiency and precise grinding of difficult-to-cut metals—like titanium alloys—is essential in the aerospace industry. However, the process often results in thermal damage to the workpiece surface, posing a significant technical challenge. While minimum quantity lubrication (MQL) has been used to aid titanium alloy grinding, its effectiveness is limited by insufficient heat dissipation and lubrication. As an alternative to normal temperature air for carrying micro-lubricants, Cryogenic air has shown promise in improving oil film heat transfer and lubrication performance in the grinding zone, thus reducing workpiece surface thermal damage. The experimental state of the technology demands more comprehensive studies on its effectiveness and on the underlying mechanisms. Thermodynamic Mechanism of Cryogenic Air Minimum Quantity Lubrication Grinding addresses these challenges by providing a theoretical framework for understanding and optimizing cryogenic air minimum quantity lubrication in grinding processes, particularly for titanium alloys. It explores the physical characteristics of lubricants under cryogenic conditions, the influence of low temperatures on atomization effects, droplet formation dynamics, and heat transfer mechanisms within the grinding zone. By establishing quantitative relationships between cryogenic air parameters and lubricant properties, the book lays a foundation for enhancing the cooling lubrication mechanism of cryogenic air MQL in grinding processes. Researchers, scholars, and graduate students in universities and research institutes focusing on machining will find this book invaluable, as it goes beyond the theoretical insights into practical solutions to enhance grinding efficiency and reduce thermal damage.
Download or read book Thermodynamic Mechanism of MQL Grinding with Nano Bio lubricant written by Changhe Li and published by Springer Nature. This book was released on 2023-12-01 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the thermodynamic mechanism of MQL grinding with nano-biological lubricant from the force, heat, surface integrity, and micro-morphology. It makes up the fatal defect of the lack of heat transfer capability of traditional MQL grinding. The machining accuracy, surface quality, especially surface integrity of the workpiece, are significantly improved; at the same time, the service life of the grinding wheel is increased and the working environment is improved. The general scope of the book’s content is the effects of MQL grinding with nano-bio-lubricant on grinding force, thermal mechanism, and surface. It provides a new method of sustainable green grinding for environment-friendly, resource-saving, and energy-efficient utilization and solves the technical bottleneck of the insufficient capacity in MQL heat transfer.
Download or read book Enhanced Heat Transfer Mechanism of Nanofluid MQL Cooling Grinding written by Li, Changhe and published by IGI Global. This book was released on 2019-10-25 with total page 441 pages. Available in PDF, EPUB and Kindle. Book excerpt: In today’s modern world, the manufacturing industry is embracing an energy-efficient initiative and adopting green techniques. One aspect that has failed to adopt this scheme is flood grinding. Current flood grinding methods increase the treatment cost of grinding fluid and waste large quantities. In order to remain sustainable and efficient, in-depth research is necessary to study green grinding technologies that can ensure machining precision and surface quality of workpiece and reduce grinding fluid-induced environmental pollution. Enhanced Heat Transfer Mechanism of Nanofluid MQL Cooling Grinding provides emerging research exploring the theoretical and practical aspects of nanofluid lubrication and its application within grinding flow and green manufacturing. Featuring coverage on a broad range of topics such as airflow distribution, morphology analysis, and lubrication performance, this book is ideally designed for mechanical professionals, engineers, manufacturers, researchers, scientists, academicians, and students seeking current research on clean and low-carbon precision machining methods.
Download or read book Advances in Cryogenic Engineering written by K.D. Timmerhaus and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1985 joint Cryogenic Engineering/International Cryogenic Materi als Conference was held on the campus of the Massachusetts Institute of Technology, Cambridge, Massachusetts. About 350 papers were presented at the joint conference on a wide variety of topics in cryogenic science and engineering. This volume of Advances in cryogenic Eogineerlng, the thirty-first in the series which began in 1954, contains most of the papers which were presented at the 1985 Cryogenic Engineering Conference. Each paper was rigorously peer reviewed to maintain the international reputation of Advances as the premier archival publication in the field of cryoscience, engineering, and technology. All the papers published in Volume 31 contain an abstract. A copy of the book will be sent to all maj or abstracting services, which should improve retrieval of the information contained in the published papers. I would like to thank the authors and those who served as reviewers. I especially appreciate the assistance of my colleague M. E. Stone who edited some of the papers for this volume. Terry Gutierrez was invaluable in preparing the manuscripts for publication, and I thank her. xvii DEDICATION Dr. Samuel C. Collins, Professor Emeritus of the Massachusetts Institute of Technology, internationally known as the father of practical helium liquefiers and founder of the MIT Cryogenic Engineering Laboratory, died on June 19, 1984, in George Washington University Hospital, Washington, DC.
Download or read book Solar Thermal Systems and Applications written by Mohsen Sheikholeslami and published by Elsevier. This book was released on 2024-05-28 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar Thermal Systems and Applications: New Design Techniques for Improved Thermal Performance brings together the latest advances for the improved performance, efficiency, and integration of solar thermal energy (STE) technology. The book begins by introducing solar energy and solar thermal energy as a viable option in terms of green energy for industrial, commercial, and residential applications, as well as its role and potential within hybrid energy systems. This is followed by detailed chapters that focus on key innovations in solar thermal energy systems, covering novel approaches and techniques in areas such as flat plate solar collectors, modified evacuated tube solar collectors, solar parabolic trough collectors, linear Fresnel reflectors, photovoltaic thermal systems, phase change materials, nanotechnology, combined PVT-PCM systems, solar thermal systems and Trombe wall design, solar still units, and solar dish systems. Throughout the book, the coverage is supported by experimental and numerical modelling methods, and techniques are discussed and assessed with a view to improved electrical and thermal efficiency and performance. This is a valuable resource for researchers and advanced students in solar energy, thermal engineering, hybrid energy systems, renewable energy, mechanical engineering, nanotechnology, and materials science. This is also of interest to engineers, R&D professionals, scientists, and policy makers with an interest in solar thermal energy (STE) in an industrial, residential, or commercial setting. Introduces solar thermal energy (STE) and details the current state and future opportunities Reviews and analyzes the latest advances in solar thermal energy technology, design, methods, and applications Covers, in detail, the role of phase change materials and nanomaterials in STE systems
Download or read book Machining of Titanium Alloys written by J. Paulo Davim and published by Springer. This book was released on 2014-07-05 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a collection of examples illustrating the resent research advances in the machining of titanium alloys. These materials have excellent strength and fracture toughness as well as low density and good corrosion resistance; however, machinability is still poor due to their low thermal conductivity and high chemical reactivity with cutting tool materials. This book presents solutions to enhance machinability in titanium-based alloys and serves as a useful reference to professionals and researchers in aerospace, automotive and biomedical fields.
Download or read book Fundamentals of Fluid Film Lubrication written by Bernard J. Hamrock and published by CRC Press. This book was released on 2004-03-15 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specifically focusing on fluid film, hydrodynamic, and elastohydrodynamic lubrication, this edition studies the most important principles of fluid film lubrication for the correct design of bearings, gears, and rolling operations, and for the prevention of friction and wear in engineering designs. It explains various theories, procedures, and equations for improved solutions to machining challenges. Providing more than 1120 display equations and an introductory section in each chapter, Fundamentals of Fluid Film Lubrication, Second Edition facilitates the analysis of any machine element that uses fluid film lubrication and strengthens understanding of critical design concepts.
Download or read book Sustainable Machining written by J. Paulo Davim and published by Springer. This book was released on 2017-03-19 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview on current sustainable machining. Its chapters cover the concept in economic, social and environmental dimensions. It provides the reader with proper ways to handle several pollutants produced during the machining process. The book is useful on both undergraduate and postgraduate levels and it is of interest to all those working with manufacturing and machining technology.
Download or read book Friction Wear and Lubrication in Vacuum written by Donald H. Buckley and published by . This book was released on 1971 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanolubricants written by Jean Michel Martin and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The technology involved in lubrication by nanoparticles is a rapidly developing scientific area and one that has been watched with interest for the past ten years. Nanolubrication offers a solution to many problems associated with traditional lubricants that contain sulphur and phosphorus; and though for some time the production of nanoparticles was restricted by the technologies available, today synthesis methods have been improved to such a level that it is possible to produce large quantities relatively cheaply and efficiently. Nanolubricants develops a new concept of lubrication, based on these nanoparticles, and along with the authors’ own research it synthesises the information available on the topic of nanolubrication from existing literature and presents it in a concise form. Describes the many advantages and potential applications of nanotechnology in the tribological field. Offers a full review of the state-of-the-art as well as much original research that is yet unpublished. Includes sections on boundary lubrication by colloïdal systems, nanolubricants made of metal dichalcogenides, carbon-based nanolubricants, overbased detergent salts, nanolubricants made of metals and boron-based solid nanolubricants and lubrication additives. Authored by highly regarded experts in the field with contributions from leading international academics. Nanolubricants will appeal to postgraduate students, academics and researchers in mechanical engineering, chemical engineering and materials science. It should also be of interest to practising engineers with petroleum companies and mechanical manufacturers.
Download or read book Chemical Engineering Design written by Gavin Towler and published by Elsevier. This book was released on 2012-01-25 with total page 1321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical Engineering Design, Second Edition, deals with the application of chemical engineering principles to the design of chemical processes and equipment. Revised throughout, this edition has been specifically developed for the U.S. market. It provides the latest US codes and standards, including API, ASME and ISA design codes and ANSI standards. It contains new discussions of conceptual plant design, flowsheet development, and revamp design; extended coverage of capital cost estimation, process costing, and economics; and new chapters on equipment selection, reactor design, and solids handling processes. A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data, and Excel spreadsheet calculations, plus over 150 Patent References for downloading from the companion website. Extensive instructor resources, including 1170 lecture slides and a fully worked solutions manual are available to adopting instructors. This text is designed for chemical and biochemical engineering students (senior undergraduate year, plus appropriate for capstone design courses where taken, plus graduates) and lecturers/tutors, and professionals in industry (chemical process, biochemical, pharmaceutical, petrochemical sectors). New to this edition: Revised organization into Part I: Process Design, and Part II: Plant Design. The broad themes of Part I are flowsheet development, economic analysis, safety and environmental impact and optimization. Part II contains chapters on equipment design and selection that can be used as supplements to a lecture course or as essential references for students or practicing engineers working on design projects. New discussion of conceptual plant design, flowsheet development and revamp design Significantly increased coverage of capital cost estimation, process costing and economics New chapters on equipment selection, reactor design and solids handling processes New sections on fermentation, adsorption, membrane separations, ion exchange and chromatography Increased coverage of batch processing, food, pharmaceutical and biological processes All equipment chapters in Part II revised and updated with current information Updated throughout for latest US codes and standards, including API, ASME and ISA design codes and ANSI standards Additional worked examples and homework problems The most complete and up to date coverage of equipment selection 108 realistic commercial design projects from diverse industries A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data and Excel spreadsheet calculations plus over 150 Patent References, for downloading from the companion website Extensive instructor resources: 1170 lecture slides plus fully worked solutions manual available to adopting instructors
Download or read book Tribology of Abrasive Machining Processes written by Ioan D. Marinescu and published by William Andrew. This book was released on 2012-12-07 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book draws upon the science of tribology to understand, predict and improve abrasive machining processes. Pulling together information on how abrasives work, the authors, who are renowned experts in abrasive technology, demonstrate how tribology can be applied as a tool to improve abrasive machining processes. Each of the main elements of the abrasive machining system are looked at, and the tribological factors that control the efficiency and quality of the processes are described. Since grinding is by far the most commonly employed abrasive machining process, it is dealt with in particular detail. Solutions are posed to many of the most commonly experienced industrial problems, such as poor accuracy, poor surface quality, rapid wheel wear, vibrations, work-piece burn and high process costs. This practical approach makes this book an essential tool for practicing engineers. Uses the science of tribology to improve understanding and of abrasive machining processes in order to increase performance, productivity and surface quality of final products A comprehensive reference on how abrasives work, covering kinematics, heat transfer, thermal stresses, molecular dynamics, fluids and the tribology of lubricants Authoritative and ground-breaking in its first edition, the 2nd edition includes 30% new and updated material, including new topics such as CMP (Chemical Mechanical Polishing) and precision machining for micro-and nano-scale applications
Download or read book Metalworking Fluids MWFs for Cutting and Grinding written by V P Astakhov and published by Elsevier. This book was released on 2012-01-31 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal working fluids (MWFs) provide important functions such as lubrication and cooling in the machining of metals. This book reviews the issues surrounding the use of fluids for cutting and grinding throughout the metal working process, from selection and testing to disposal. The book opens with chapters considering the mechanism and action, selection and delivery of MWFs to the machining zone before moving onto discuss the many issues surrounding MWFs during machining such as selection of the proper MWF, environmental concerns, supply methods, circulation and monitoring. The final chapters discuss the maintenance, replacement and disposal of MWFs. With its distinguished editors and international team of expert contributors, Metalworking fluids (MWFs) for cutting and grinding is an invaluable reference tool for engineers and organizations using metal cutting/machining in the manufacturing process as well as machine designers/manufacturers and machining fluid/chemical suppliers. Chapters consider the mechanism and action, selection and delivery of MWFs to the machining zone Environmental concerns, supply methods, circulation and monitoring are also discussed Written by distinguished editors and international team of expert contributors
Download or read book Iron Steelmaker written by and published by . This book was released on 2003-07 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rules of Thumb for Mechanical Engineers written by J. Edward Pope and published by Gulf Professional Publishing. This book was released on 1997 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluids -- Heat transfer -- Thermodynamics -- Mechanical seals -- Pumps and compressors -- Drivers -- Gears -- Bearings -- Piping and pressure vessels -- Tribology -- Vibration -- Materials -- Stress and strain -- Fatigue -- Instrumentation -- Engineering economics.
Download or read book Manufacturing Processes 2 written by Fritz Klocke and published by Springer Science & Business Media. This book was released on 2009-04-21 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future of manufacturing companies depends largely on their ability to adapt to swiftly changing global conditions. These are exemplified by international com- tition, rapidly growing intercommunication and the increased significance of en- ronmental issues [KLOC98a, ENGE02]. Precision machining with geometrically undefined cutting edges represents a key production engineering technology with high efficiency, security and machining quality. DIN norm 8589 subsumes within the group “machining with geometrically - defined cutting edges” the following material removal manufacturing processes: grinding, honing, lapping, free abrasive grinding and abrasive blast cutting. - chining is carried out in these production methods by means of more or less - regularly formed grains composed of hard substances brought into contact with the material. Of all methods understood as machining with geometrically undefined cutting edges, only grinding, honing and lapping can, strictly speaking, be considered p- cision machining. Free abrasive grinding and abrasive blast cutting, also treated in this book, represent a special group, as they generally cannot bring about geom- rical change in the material.
Download or read book Handbook of Machining with Grinding Wheels written by Ioan D. Marinescu and published by CRC Press. This book was released on 2016-02-22 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grinding is a crucial technology that employs specific abrasive processes for the fabrication of advanced products and surfaces. Handbook of Machining with Grinding Wheels, Second Edition highlights important industry developments that can lead to improved part quality, higher productivity, and lower costs. Divided into two parts, the book b
