Download or read book Microlubrication in Metal Machining Operations written by and published by . This book was released on 2002 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compares the performance (tool life) of cutting tools lubricated and cooled using microlubrication with that of cutting tools lubricated and cooled using traditional flood applications.
Download or read book Role of Minimum Quantity Lubrication in Metal Machining written by Amrit Pal and published by LAP Lambert Academic Publishing. This book was released on 2014-04-23 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use of cutting fluids in metal cutting enhances machining performance. However, the use of cutting fluids results in problems such as high cost, pollution and hazards to operator's health. To overcome the problems related to the use of cutting fluids, researchers have made efforts to search for some alternatives to minimize or even avoid the use of cutting fluids in machining operations. MQL is one of the safe and environment friendly alternatives sought to reduce the use of coolant lubricant fluids in metal cutting.
Download or read book Comparison of Mist Generation of Flood and Mist Application of Metal Working Fluids During Metal Cutting written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: While cutting fluids have been used since the mid-1800's, their use and formulation have changed over the years, for performance and health and safety reasons. Recently, adverse health effects were reported in industries using cutting fluids, drawing renewed attention to methods for controlling occupational exposures to cutting fluids. In addition to the potential occupational hazards associated with cutting fluids, disposal of the used cutting fluids is also a concern to many machining operations. One approach to reducing the volume of fluid used in the machining process is micro-lubrication. Micro-lubrication provides the machining process with a limited amount of cutting fluid. While the more traditional approach to cutting fluid application has been to flood the part and tool with fluid, with micro-lubrication, the fluid is applied as a mist, at flow rates that are several orders of magnitude lower than for flooding. This research focused on how micro-lubrication might affect worker exposures to cutting fluid mists. The primary objective of this study was to compare the generation rate of respirable aerosols from the application of cutting fluids using micro-lubrication and flood application. Two machining processes were studied: milling and drilling. Six different fluids were evaluated, five different soluble oils and one straight synthetic fluid. The goal was to compare respirable aerosol generation rates so that the affect of micro-lubrication on occupational exposures to cutting fluids could be understood. The results of this study showed that, for the machining conditions studied, micro-lubrication resulted in significantly higher cutting fluid mist generation rates than flood application. Estimates of the workplace concentrations showed that flood application would likely result in mist exposure concentrations below any applicable exposure criteria, while micro-lubrication could result in cutting fluid mist concentrations exceeding some exposure limits. As a result, facilities considering micro-lubrication should recognize the need for adequate cutting fluid mist controls, including machine enclosure, ventilation and air-cleaning. Micro-lubrication has many potential benefits, but the challenges associated with this fluid application method must be recognized and addressed before it is implemented.
Download or read book Synthetics Mineral Oils and Bio Based Lubricants written by Leslie R. Rudnick and published by CRC Press. This book was released on 2013-02-04 with total page 1019 pages. Available in PDF, EPUB and Kindle. Book excerpt: Highlighting the major economic and industrial changes in the lubrication industry since the first edition, Synthetics, Mineral Oils, and Bio-Based Lubricants, Second Edition outlines the state of the art in each major lubricant application area. Chapters cover trends in the major industries, such as the use of lubricant fluids, growth or decl
Download or read book Chapter 11 Metalworking and Machining Fluids written by and published by . This book was released on 2009 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: DISCUSSION IN THIS CHAPTER PERTAINS TO fluids that facilitate metalworking and machining operations. The nature of the various working operations is examined, along with the properties of the lubricants needed for each. Discussion includes metalworking fluid classifications, composition, formulating, and testing. Representative examples of the various metalworking fluid formulations are also provided at the end of the chapter. Metalworking is the process of converting the bulk metal into a component, or a part, and primarily involves two types of operations: Those that produce metal debris and those that produce no debris. The former type is classified as the metal removal operations and the latter type is classified as the metal forming operations. Cutting and grinding are examples of the first type and drawing, stamping, and bending are examples of the second type. All metalworking operations involve bringing two solids, a tool and a work-piece, together to create a new part or a shape. The process involves high friction, high pressures, high temperatures, and tool wear, and it is the job of the lubricant, or the metalworking fluid, to control them. Metalworking fluids accomplish this by providing cooling, lubrication, and protection against corrosion. They, therefore, improve the efficiency of the operation, and hence increase productivity. Irrespective of the type of the metal cutting operation, whether it is turning, milling, drilling, planing, shaping, broaching, or sawing, the mechanism of action of all cutting tools is the same. That is, the cutting is performed by the tool either as it moves across the metal surface being machined, or the tool is stationary and the metal surface moves against it. In either case, the process is accompanied by plastic deformation of the metal surface at the front of the cutting edge of the tool and the rubbing of the formed chip with the tool surface, as shown in Fig. 11.1. The temperature estimates in the cutting zone are 900C on the tool's cutting edge, 500C on the chip, and 200C on the work-piece. As we move away from this zone, the temperature of the tool drops to 400C on the tool's outer edge and to 200C on the chip. About 75% of the heat generated is due to the deformation of the metal and the other 25% results from the friction due to sliding of the chip on the tool face. Metal deformation occurs due to shear or plastic flow along the shear plane that extends from the edge of the tool to the surface of the work-piece metal, see Fig. 11.1. Below the shear plane the metal is undisturbed; above it the metal is deformed and ultimately results in the formation of a chip. It is critical that the high temperatures in the cutting zone are decreased, otherwise extensive tool wear and rough finish of the work-piece will occur. In the case of the brittle materials, high temperatures in addition may cause the fracture of the metal along the shear plane, which will form a discontinuous or segmentai-type chip. This is undesired since it will interrupt the continuous cutting action. In the case of the ductile metals, high temperatures will also cause a built-up-edge on the nose of the tool, which will result in a severe plowing action and again poor finish of the work-piece surface will occur. The built-up edge is the stagnant mass of the metal that sheared away from the body of the chip by the high tool-face friction.
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 90 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 Fundamentals of Machining Processes written by Hassan El-Hofy and published by CRC Press. This book was released on 2018-11-15 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an expert with over 40 years of experience in research and teaching machining and related topics, this new edition textbook presents the principles and theories of material removal and applications for conventional, nonconventional and hybrid machining processes. The new edition is ideal for undergraduate students in production, materials, industrial, mechatronics, marine, mechanical, and manufacturing engineering programs, and also useful for graduate programs related to higher-level machining topics, as well as professional engineers and technicians. All chapters are updated, with additional chapters covering new topics of composite machining, vibration assisted machining and mass finishing operations.
Download or read book Rapid Detection and Enumeration of Mycobacteria in Metalworking Fluids written by Shuqi Zhang and published by . This book was released on 2005 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Manufacturing and Processing Technology written by Chander Prakash and published by CRC Press. This book was released on 2020-10-25 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book disseminates recent research, theories, and practices relevant to the areas of surface engineering and the processing of materials for functional applications in the aerospace, automobile, and biomedical industries. The book focuses on the hidden technologies and advanced manufacturing methods that may not be standardized by research institutions but are greatly beneficial to material and manufacturing industrial engineers in many ways. It details projects, research activities, and innovations in a global platform to strengthen the knowledge of the concerned community. The book covers surface engineering including coating, deposition, cladding, nanotechnology, surface finishing, precision machining, processing, and emerging advanced manufacturing technologies to enhance the performance of materials in terms of corrosion, wear, and fatigue. The book captures the emerging areas of materials science and advanced manufacturing engineering and presents recent trends in research for researchers, field engineers, and academic professionals.
Download or read book Minimum Quantity Lubrication for Machining Operations written by Fachausschuss Maschinenbau, Fertigungssysteme, Stahlbau and published by . This book was released on 2010 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Materials Finishing written by M.S.J. Hashmi and published by Elsevier. This book was released on 2016-08-29 with total page 1467 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finish Manufacturing Processes are those final stage processing techniques which are deployed to bring a product to readiness for marketing and putting in service. Over recent decades a number of finish manufacturing processes have been newly developed by researchers and technologists. Many of these developments have been reported and illustrated in existing literature in a piecemeal manner or in relation only to specific applications. For the first time, Comprehensive Materials Finishing, Three Volume Set integrates a wide body of this knowledge and understanding into a single, comprehensive work. Containing a mixture of review articles, case studies and research findings resulting from R & D activities in industrial and academic domains, this reference work focuses on how some finish manufacturing processes are advantageous for a broad range of technologies. These include applicability, energy and technological costs as well as practicability of implementation. The work covers a wide range of materials such as ferrous, non-ferrous and polymeric materials. There are three main distinct types of finishing processes: Surface Treatment by which the properties of the material are modified without generally changing the physical dimensions of the surface; Finish Machining Processes by which a small layer of material is removed from the surface by various machining processes to render improved surface characteristics; and Surface Coating Processes by which the surface properties are improved by adding fine layer(s) of materials with superior surface characteristics. Each of these primary finishing processes is presented in its own volume for ease of use, making Comprehensive Materials Finishing an essential reference source for researchers and professionals at all career stages in academia and industry. Provides an interdisciplinary focus, allowing readers to become familiar with the broad range of uses for materials finishing Brings together all known research in materials finishing in a single reference for the first time Includes case studies that illustrate theory and show how it is applied in practice
Download or read book Machining and Tribology written by Alokesh Pramanik and published by Elsevier. This book was released on 2021-10-16 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Machining and Tribology provides insight into both the role of tribology in machining and the effects of various machining processes on tribology, exploring topics such as machining mechanisms, coolant technology, tool wear, and more. Covering the latest research, the book starts by looking at the tribological aspects of turning, milling, and drilling processes. From there, it explores the effects of different coolants such as flood, minimum quantity lubrication, and cryogenics on machining forces, tool wear, friction, chip formation, and surface generation during various machining processes. Tribological considerations of machined components follow, and the volume concludes with chapters covering simulation scenarios for predicting machining forces, tool wear, surface generation, and chip formation. Draws upon the science of tribology to better understand, predict, and improve machining processes Covers tribology in different types of machining such as turning, milling, grinding, abrasive jet machining, and others Explores the underlying mechanisms of coolant contributions on machining processes Applies simulation techniques to explore the mechanism of nano-machining
Download or read book Handbook of Surface and Nanometrology written by David J. Whitehouse and published by CRC Press. This book was released on 2010-12-20 with total page 982 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the first edition, miniaturization and nanotechnology have become inextricably linked to traditional surface geometry and metrology. This interdependence of scales has had profound practical implications.Updated and expanded to reflect many new developments, Handbook of Surface and Nanometrology, Second Edition determines h
Download or read book Functional Materials and Advanced Manufacturing written by Chander Prakash and published by CRC Press. This book was released on 2021-01-06 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: This three-volume set addresses a new knowledge of function materials, their processing, and their characterizations. "Functional and Smart Materials", covered the synthesis and fabrication route of functional and smart materials for universal applications such as material science, mechanical engineering, manufacturing, metrology, nanotechnology, physics, chemical, biology, chemistry, civil engineering, and food science. "Advanced Manufacturing and Processing Technology" covers the advanced manufacturing technologies includes coating, deposition, cladding, nanotechnology, surface finishing, precision machining, processing, and emerging advanced manufacturing technologies for processing of materials for functional applications. "Characterization, Testing, Measurement and Metrology" covered the application of new and advanced characterization techniques to investigate and analysis the processed materials.
Download or read book Minimum Quantity Lubrication MQL written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Hundreds of manufacturing operations are finding that methods and tools that support near-dry machining, or minimum quantity lubrication (MQL), provide numerous benefits in both metal cutting and forming operations. This program surveys four very-different manufacturers; Ford Motor Company, Amerimax, Advanced Mold and World Machinary and Saws System Co., that use MQL to apply only the minimum amount of lubricant needed for each job. Each of these companies had once relied on traditional flood-coolant methods that supply large amounts of fluids to the machining process - creating high handling, cleaning, and disposal costs, as well as hazards to plant workers' skin and lungs"--Container.
Download or read book Publications of the State of Illinois written by Illinois. Office of Secretary of State and published by . This book was released on 2003 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the State of Illinois written by and published by . This book was released on 2002 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
