On the Use of Potential Theory for Thermal Modeling in Metal Cutting PDF Download
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Author: Matthias Brockmann
Publisher: Apprimus Wissenschaftsverlag
ISBN: 3863594010
Category : Technology & Engineering
Languages : en
Pages : 159
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Book Description
Evolving temperature distributions during metal cutting are of major significance. Present analytical models are not capable to predict temperature fields to a sufficient degree. This lack of model validity is caused by the limited mathematical approaches. The present thesis deals with the development of methodologies for thermal modeling based on a class of complex functions termed potential functions. This approach has never been used before for metal cutting applications.
Author: Matthias Brockmann
Publisher: Apprimus Wissenschaftsverlag
ISBN: 3863594010
Category : Technology & Engineering
Languages : en
Pages : 159
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Book Description
Evolving temperature distributions during metal cutting are of major significance. Present analytical models are not capable to predict temperature fields to a sufficient degree. This lack of model validity is caused by the limited mathematical approaches. The present thesis deals with the development of methodologies for thermal modeling based on a class of complex functions termed potential functions. This approach has never been used before for metal cutting applications.
Author: Thorsten Augspurger
Publisher: Apprimus Wissenschaftsverlag
ISBN: 3863596900
Category : Technology & Engineering
Languages : en
Pages : 176
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Book Description
The aim of the current work was the analysis of temperatures in the milling process in order to understand causal and statistical relationships between process parameters and thermal state variables. The first step included fundamental empirical investigations in the form of orthogonal cuts in order to estimate the heat partitioning depending on the process parameters. Based on the empirical data from the orthogonal cuts temperature fields in the milling process were modelled analytically and validated.
Author: Knut Großmann
Publisher: Springer
ISBN: 3319126253
Category : Technology & Engineering
Languages : en
Pages : 260
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Book Description
The approach to the solution within the CRC/TR 96 financed by the German Research Foundation DFG aims at measures that will allow manufacturing accuracy to be maintained under thermally unstable conditions with increased productivity, without an additional demand for energy for tempering. The challenge of research in the CRC/TR 96 derives from the attempt to satisfy the conflicting goals of reducing energy consumption and increasing accuracy and productivity in machining. In the current research performed in 19 subprojects within the scope of the CRC/TR 96, correction and compensation solutions that influence the thermo-elastic machine tool behaviour efficiently and are oriented along the thermo-elastic functional chain are explored and implemented. As part of this general objective, the following issues must be researched and engineered in an interdisciplinary setting and brought together into useful overall solutions: 1. Providing the modelling fundamentals to calculate the heat fluxes and the resulting thermo-elastic deformations in a comprehensive manner, 2. Mapping of the structural variability as a result of the relative movement inside the machine tool, 3. Providing the tools for an efficient adjustment of parameters that vary greatly in time and space by means of parameter identification methods as a prerequisite for correction and compensation solutions, 4. Engineering and demonstrating solutions to control-integrated correction of thermo-elastic errors by an inverse position setpoint compensation of the error at the TCP, 5. Engineering and demonstrating solutions based on the material properties to compensate for thermo-elastic effects through a homogeneous propagation of the temperature field, as well as reducing and smoothing the distribution of heat dissipated in supporting structures, 6. Developing metrological fundamentals to record the thermo-elastic errors in special structural areas of machine tools, 7. Engineering a methodological approach to simultaneous and complex evaluation of the CRC/TR 96 solutions, referring to their impact on product quality, production rate, energy consumption and machine tool costs
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Category : Aeronautics
Languages : en
Pages : 704
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Category : Mechanics, Applied
Languages : en
Pages : 1518
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Category : Military research
Languages : en
Pages : 274
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Category : Mechanical engineering
Languages : en
Pages : 910
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Book Description
Author: Günther Seliger
Publisher: Springer Science & Business Media
ISBN: 3642201830
Category : Technology & Engineering
Languages : en
Pages : 391
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Book Description
Non-renewable materials can no longer be disposed once humankind's ever increasing needs cannot be fulfilled anymore due to limited resources. Reuse and recycling become inevitable requirements for product and process design. Renewable resources must not be consumed in quantities higher than can be regained. New technologies have to be developed and applied for a Sustainable Product Development and Life Cycle Engineering to fulfill the needs of humankind, protecting public health, welfare, and environment. The 8th Global Conference on Sustainable Manufacturing brings together some of the world’s leading experts to present a scientific conference in Abu Dhabi, one of the world’s fastest growing economies and a global leader in the development of sustainable technologies. The conference will focus on 7 areas: Value adding by sustainable manufacturing in the UAE Potentials of renewables Education for sustainability engineering Green supply chain and transportation Microelectronics and resource efficiency Technology driven startups Sustainable products and manufacturing processes
Author: Abhijit Chandra
Publisher: Oxford University Press, USA
ISBN: 0195079213
Category : Mathematics
Languages : en
Pages : 525
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Book Description
Numerical simulation of manufacturing processes and its integration into the design cycle are the dual themes of this book. The computational method of choice here is the boundary element method (BEM). Detailed discussions of forming, casting, machining and grinding process modelling are included.
Author: Wit Grzesik
Publisher: Elsevier
ISBN: 0444637206
Category : Technology & Engineering
Languages : en
Pages : 610
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Book Description
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
