Surface Anomalies In Turning Of Difficult To Cut Materials With High Pressure Coolant Supply
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Surface Anomalies In Turning Of Difficult To Cut Materials With High Pressure Coolant Supply
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Author : Tolga Cayli
language : en
Publisher: Apprimus Wissenschaftsverlag
Release Date : 2018-01-09
Surface Anomalies In Turning Of Difficult To Cut Materials With High Pressure Coolant Supply written by Tolga Cayli and has been published by Apprimus Wissenschaftsverlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-09 with Technology & Engineering categories.
This thesis presents the underlying mechanisms for the occurrence of surface anomalies in turning of difficult-to-cut materials with high-pressure coolant supply. Based on empirical and analytical investigations of each type of surface anomaly, the cause-and-effect relationships between the relevant process parameters and the surface quality were identified, translated into an explanation model and validated in a case study. Finally, an overview of different possibilities for anomaly-free machining with high-pressure coolant supply were discussed.
Polarity Dependent Removal Interferences In Sink Edm Of Titanium Alloys
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Author : Maximilian Holsten
language : en
Publisher: Apprimus Wissenschaftsverlag
Release Date : 2018-12-31
Polarity Dependent Removal Interferences In Sink Edm Of Titanium Alloys written by Maximilian Holsten and has been published by Apprimus Wissenschaftsverlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-31 with Technology & Engineering categories.
In the design of turbomachinery components, a significant effort is carried out regarding the optimization of efficiency. The increase in thermal efficiency particularly involves the introduction of high-performance alloys. Such alloys are for example titanium alloys. Sink electrical discharge machining (sink EDM) is a crucial manufacturing process for components due to its independence of machined material strengths; however, new materials require process design. Hence, research to understand and optimize the machining of titanium alloys is of great benefit to the industry in general. A positive tool polarity is generally adopted in sink EDM to maximize material removal relative to tool wear. Sink EDM of α/β titanium alloys as Ti6Al4V is however atypical in that these materials necessitate a negative tool polarity. Adding to the intrigue are gamma titanium aluminides (γ-TiAl), which machine better under the conventional positive polarity. Established explanatory models of sink EDM fail in resolving the removal behavior – a need for fundamental research is given. This thesis focuses on clarifying the phenomena behind this interesting behavior by investigating removal mechanisms over a range of relevant process conditions. The polarity-effect is demonstrated to arise from the polarity-dependent nature and extent of titanium carbide (TiC) formation on the workpiece surface, which significantly affects material removal mechanisms. An explanatory model, deduced from different experimental and numerical approaches, clarifies the influence of polarity to the formation mechanism of a TiC layer. With regard to monitoring of adverse layer formations, the measurement of acoustic emission (AE) is proven an appropriate concept. A correlation of the AE signal to process forces is even established, which may be crucial to determine the deflection of thin electrodes in EDM. Finally, the knowledge acquired is applied and enhanced in comprehensive process design, that also involves the machining of additively manufactured γ-TiAl. The study reveals the beneficial behavior of the fine microstructure relative to the resulting surface integrity. As a result, this thesis delivers a model-based concept for process design with respect to the adequate choice of tool polarity during machining of titanium alloys.
Encyclopedia Of Sustainable Technologies
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Author : Martin Abraham
language : en
Publisher: Elsevier
Release Date : 2017-07-04
Encyclopedia Of Sustainable Technologies written by Martin Abraham and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-04 with Science categories.
Encyclopedia of Sustainable Technologies, Eight Volume Set provides an authoritative assessment of the sustainable technologies that are currently available or in development. Sustainable technology includes the scientific understanding, development and application of a wide range of technologies and processes and their environmental implications. Systems and lifecycle analyses of energy systems, environmental management, agriculture, manufacturing and digital technologies provide a comprehensive method for understanding the full sustainability of processes. In addition, the development of clean processes through green chemistry and engineering techniques are also described. The book is the first multi-volume reference work to employ both Life Cycle Analysis (LCA) and Triple Bottom Line (TBL) approaches to assessing the wide range of technologies available and their impact upon the world. Both approaches are long established and widely recognized, playing a key role in the organizing principles of this valuable work. Provides readers with a one-stop guide to the most current research in the field Presents a grounding of the fundamentals of the field of sustainable technologies Written by international leaders in the field, offering comprehensive coverage of the field and a consistent, high-quality scientific standard Includes the Life Cycle Analysis and Triple Bottom Line approaches to help users understand and assess sustainable technologies
Surface Anomalies In Turning Of Difficult To Cut Materials With High Pressure Coolant Supply
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Author : Tolga Cayli
language : en
Publisher:
Release Date : 2018-01-08
Surface Anomalies In Turning Of Difficult To Cut Materials With High Pressure Coolant Supply written by Tolga Cayli and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-08 with categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Manufacturing Processes 1
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Author : Fritz Klocke
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-05-26
Manufacturing Processes 1 written by Fritz Klocke and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-05-26 with Technology & Engineering categories.
The book series on manufacturing processes for engineers is a reference work for scientific and industrial experts. This volume on Turning, Milling and Drilling starts from the basic principles of machining with geometrically defined cutting edges based on a common active principle. In addition, appropriate tool designs as well as the reasonable use of cutting material are presented. A detailed chapter about the machinability of the most important workpiece materials, such as steel and cast iron, light metal alloys and high temperature resistant materials imparts a broad knowledge of the interrelations between workpiece materials, cutting materials and process parameters. This book is in the RWTHedition Series as are the other four volumes of the reference work.
Machining Difficult To Cut Materials
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Author : Hossam A. Kishawy
language : en
Publisher: Springer
Release Date : 2018-08-09
Machining Difficult To Cut Materials written by Hossam A. Kishawy and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-09 with Technology & Engineering categories.
This book focus on the challenges faced by cutting materials with superior mechanical and chemical characteristics, such as hardened steels, titanium alloys, super alloys, ceramics and metal matrix composites. Aspects such as costs and appropriate machining strategy are mentioned. The authors present the characteristics of the materials difficult to cut and comment on appropriate cutting tools for their machining. This book also serves as a reference tool for manufacturers working in industry.
Co2 Laser Cutting
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Author : John Powell
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Co2 Laser Cutting written by John Powell and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
CO2 Laser Cutting explains and describes how engineering materials are cut using a CO2 laser. Information is given on the cutting of metals and non metals on a wide range of levels from practical advice and processing parameters to explanations of the physical and chemical reactions which take place in the cut zone. In an effort to make the book as readable and informative as possible the subject is treated in a descriptive rather than a mathematical way. The benefit of CO2 Laser Cutting is twofold as it gives practical advice to the operator and technical advice to the researchers or scientist.
Crc Handbook Of Metal Etchants
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Author : Perrin Walker
language : en
Publisher: CRC Press
Release Date : 1990-12-11
Crc Handbook Of Metal Etchants written by Perrin Walker and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-12-11 with Science categories.
This publication presents cleaning and etching solutions, their applications, and results on inorganic materials. It is a comprehensive collection of etching and cleaning solutions in a single source. Chemical formulas are presented in one of three standard formats - general, electrolytic or ionized gas formats - to insure inclusion of all necessary operational data as shown in references that accompany each numbered formula. The book describes other applications of specific solutions, including their use on other metals or metallic compounds. Physical properties, association of natural and man-made minerals, and materials are shown in relationship to crystal structure, special processing techniques and solid state devices and assemblies fabricated. This publication also presents a number of organic materials which are widely used in handling and general processing...waxes, plastics, and lacquers for example. It is useful to individuals involved in study, development, and processing of metals and metallic compounds. It is invaluable for readers from the college level to industrial R & D and full-scale device fabrication, testing and sales. Scientific disciplines, work areas and individuals with great interest include: chemistry, physics, metallurgy, geology, solid state, ceramic and glass, research libraries, individuals dealing with chemical processing of inorganic materials, societies and schools.
Laser Additive Manufacturing Of High Performance Materials
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Author : Dongdong Gu
language : en
Publisher: Springer
Release Date : 2016-10-29
Laser Additive Manufacturing Of High Performance Materials written by Dongdong Gu and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-29 with Technology & Engineering categories.
This book entitled “Laser Additive Manufacturing of High-Performance Materials” covers the specific aspects of laser additive manufacturing of high-performance new materials components based on an unconventional materials incremental manufacturing philosophy, in terms of materials design and preparation, process control and optimization and theories of physical and chemical metallurgy. This book describes the capabilities and characteristics of the development of new metallic materials components by laser additive manufacturing process, including nanostructured materials, in situ composite materials, particle reinforced metal matrix composites, etc. The topics presented in this book, similar as laser additive manufacturing technology itself, show a significant interdisciplinary feature, integrating laser technology, materials science, metallurgical engineering and mechanical engineering. This is a book for researchers, students, practicing engineers and manufacturing industry professionals interested in laser additive manufacturing and laser materials processing. Dongdong Gu is a Professor at College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics (NUAA), PR China.