Download or read book Electrolytic In process Dressing ELID for High efficiency Precision Grinding of Ceramic Parts written by and published by . This book was released on 1995 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes Electrolytic In-process Dressing (ELID) as applied to the efficient, high-precision grinding of structural ceramics, and describes work performed jointly by Dr. B.P. Bandyopadhyay, University of North Dakota, and Dr. R. Ohmori, of the Institute of Physical and Chemical Research (RINEN), Tokyo, Japan, from June through August, 1994. Dr. Ohmori pioneered the novel ELID grinding technology which incorporates electrolytically enhanced, in-process dressing of metal bonded superabrasive wheels. The principle of ELID grinding technology is discussed in the report as will its application for rough grinding and precision grinding. Two types of silicon nitride based ceramics (Kyocerals Si3N4, and Eaton's SRBSN) were ground under various conditions with ELID methods. Mirror surface finishes were obtained with {number_sign} 4000 mesh size wheel (average grain size = 4 [mu]m). Results of these investigations are presented in this report. These include the effects of wheel bond type, type of power supply, abrasive grit friability, and cooling fluid composition. The effects of various parameters are discussed in terms of the mechanisms of ELID grinding, and in particular, the manner of boundary layer formation on the wheels and abrasive grit protrusion.

Download or read book Ceramic Technology for Advanced Heat Engines written by B. P. Bandyopadhyay and published by . This book was released on 1994 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Application of Electrolytic In process Dressing for High efficiency Grinding of Ceramic Parts Research Activities 1995 96 written by and published by . This book was released on 1997 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of Electrolytic In-Process Dressing (ELID) for highly efficient and stable grinding of ceramic parts is discussed. This research was performed at the Institute of Physical and Chemical Research (RIKEN), Tokyo, Japan, June 1995 through August 1995. Experiments were conducted using a vertical machining center. The silicon nitride work material, of Japanese manufacture and supplied in the form of a rectangular block, was clamped to a vice which was firmly fixed on the base of a strain gage dynamometer. The dynamometer was clamped on the machining center table. Reciprocating grinding was performed with a flat-faced diamond grinding wheel. The output from the dynamometer was recorded with a data acquisition system and the normal component of the force was monitored. Experiments were carried out under various cutting conditions, different ELID conditions, and various grinding wheel bonds types. Rough grinding wheels of grit sizes {number_sign}170 and {number_sign}140 were used in the experiments. Compared to conventional grinding, there was a significant reduction in grinding force with ELID grinding. Therefore, ELID grinding can be recommended for high material removal rate grinding, low rigidity machines, and low rigidity workpieces. Compared to normal grinding, a reduction in grinding ratio was observed when ELID grinding was performed. A negative aspect of the process, this reduced G-ratio derives from bond erosion and can be improved somewhat by adjustments in the ELID current. The results of this investigation are discussed in detail in this report.

Download or read book Electrolytic in Process Dressing ELID Applied to Double Side Grinding of Ceramic Materials written by Cristian Spanu and published by . This book was released on 2004 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the present work is to design, optimize, and validate an electrolytic in-process dressing (ELID)-assisted double side grinding process for finishing advanced ceramic components. To attain this objective, an original ELID double side grinding system was designed, fabricated, and operated at the Precision Micro-Machining Center of The University of Toledo, Ohio. The ELID technique was selected from among other options to assure the in-situ dressing of the metal-bonded superabrasive grinding wheel and to maintain its cutting ability throughout the operation, which is, otherwise, a challenging enterprise. Optimizing the ELID double side grinding process' parameters is an important goal of the present study. To achieve this goal, a complex integrated model was developed and validated through extensive experimental testing. Four analytical computerized models were developed and integrated: (1) an improved kinematic model of the double side grinding operation accounting for workpiece rotation, which is used to simulate the grinding trajectories; (2) a microscopic model of the interaction between a single diamond grit and the work surface, which is used to predict the volume of material removed; (3) a stochastic model for the topographical characterization of the superabrasive wheel, which leads to a new prediction method of depth of indentation; and (4) an electrolytic oxidation model, which explains the dynamics of the oxide layer. In order to validate the models and to confirm the optimized process, experimental tests were conducted under different conditions: with vitrified and metallic bond grinding wheels, with various average grain sizes of diamond grits, with different superabrasive concentrations, with different grinding fluids, with and without ELID assistance. Our findings show that an optimized ceramic double side grinding process using fine diamond grit is more efficient than lapping in producing very fine surfaces. The experiments confirmed the superiority of ELID-assisted double side grinding over the conventional operation in terms of productivity, surface finish and geometrical precision of the ground surfaces, ease of wheel maintenance, and prevalence of ductile material removal mode.

Download or read book Electrolytic In Process Dressing ELID Technologies written by Hitoshi Ohmori and published by CRC Press. This book was released on 2011-06-22 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by experts, one of whom developed the technology, Electrolytic In-Process Dressing (ELID) Technologies: Fundamentals and Applications provides an overview of ELID processes with correlations between the main parameters, describes ELID operations, and illustrates the concepts with case studies. The book's authoritative coverage of major conce

Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.

Download or read book Electrolytic In process Dressing ELID Technologies written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Ceramics Grinding and Polishing written by Ioan D. Marinescu and published by William Andrew. This book was released on 2015-11-19 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Ceramics Grinding and Polishing meets the growing need in manufacturing industries for a clear understanding of the latest techniques in ceramics processing. The properties of ceramics make them very useful as components—they withstand high temperatures and are durable, resistant to wear, chemical degradation, and light. In recent years the use of ceramics has been expanding, with applications in most industry sectors that use machined parts, especially where corrosion-resistance is required, and in high temperature environments. However, they are challenging to produce and their use in high-precision manufacturing often requires adjustments to be made at the micro and nano scale. This book helps ceramics component producers to do cost-effective, highly precise machining. It provides a thorough grounding in the fundamentals of ceramics—their properties and characteristics—and of the abrasive processes used to manipulate their final shape as well as the test procedures vital for success. The second edition has been updated throughout, with the latest developments in technologies, techniques, and materials. The practical nature of the book has also been enhanced; numerous case studies illustrating how manufacturing (machining) problems have been handled are complemented by a highly practical new chapter on the selection and efficient use of machine tools. - Provides readers with experience-based insights into complex and expensive processes, leading to improved quality control, lower failure rates, and cost savings - Covers the fundamentals of ceramics side-by-side with processing issues and machinery selection, making this book an invaluable guide for downstream sectors evaluating the use of ceramics, as well as those involved in the manufacturing of structural ceramics - Numerous case studies from a wide range of applications (automotive, aerospace, electronics, medical devices)

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 Handbook of Advanced Ceramics Machining written by Ioan D. Marinescu and published by CRC Press. This book was released on 2006-11-16 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the life-long dedication of an unsurpassed team of experts from industry and academia, the Handbook of Advanced Ceramics Machining explores the latest developments in our understanding of the mechanisms of ceramics machining as well as state-of-the-art technologies. Covering methods that offer high-rate material removal and others that provide extremely high-quality surface finish, this book examines conventional, new, and lesser-known methods including ductile grinding, belt centerless grinding, lapping, polishing, double-side grinding, laser-assisted grinding, ultrasonic machining, and the new electrolytic in-process dressing (ELID) grinding method.

Download or read book Engineered Materials Abstracts written by and published by . This book was released on 1995-04 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Journal of the Japan Society for Precision Engineering written by and published by . This book was released on 1997 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1997 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Examination of Oxidation Sites for Electrolytic In process Dressing ELID Grinding Using SEM written by Bader Mushabbab Alqahtani and published by . This book was released on 2019 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrolytic in-process dressing (ELID) is a grinding technique used to generate high quality surfaces on hard and brittle material such as ceramics and sapphires. Compared to the use of conventional wheel sharpening techniques (dressing), ELID greatly reduces grinding wheel wear and grinding forces, while improving surface quality and dimensional accuracy. Oxide layer formed on grinding wheel during ELID grinding heavily influences the surface roughness of the workpiece. To study the microscopic structure of the oxide layer and model the thickness of it, we conducted a previously reported study on metallic bonded prism samples with major adjustments and implementations. The parameter studied are voltage, electrode-grinding wheel gap, and coolant flow rate. Scanning Electron Microscopy (SEM) images of cross-section of the oxidation sites were captured and compared and oxide layer thickness was accurately measured. The voltage, gap, and coolant flow pattern were found to significantly affect the forming of the oxide layer. SEM images provide evidence that ELID grinding can achieve high levels of surface finish.

Download or read book International Conference on Mechanism Science and Control Engineering MSCE 2014 written by and published by DEStech Publications, Inc. This book was released on 2014-09-02 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of MSCE 2014 is to provide a platform for researchers, engineers, and academicians, as well as industrial professionals, to present their research results and development activities in mechanism science and control engineering. It provides opportunities for the delegates to exchange new ideas and application experiences, to establish business or research relations and to find global partners for future collaboration. MSCE2014 is conducted to all the researchers, engineers, industrial professionals and academicians, who are broadly welcomed to present their latest research results, academic developments or theory practice. Topics of interest include but are not limited to Mechanism theory and Application, Mechanical control and Automation Engineering, Mechanical Dynamics, Materials Processing and Control, Instruments and Vibration Control. It is of great pleasure to see the delegates exchanging ideas and establishing sound relationships on the conference.

Download or read book Proceedings of the CIRP Seminars on Manufacturing Systems fertigungssysteme syst mes de Fabrication written by and published by . This book was released on 1998 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Finishing of Advanced Ceramics and Glasses written by Robert Sabia and published by . This book was released on 1999 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: