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Author: Marvin Hardt
Publisher: Apprimus Wissenschaftsverlag
ISBN: 3985550611
Category : Technology & Engineering
Languages : en
Pages : 204
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Book Description
The scientific goal of the present work was to model the workpiece material behavior of steels in the metal cutting process depending on the occurring thermo-mechanical loads. The results of this work shall make a significant contribution to the predictive process design of the cutting process by means of Finite Element (FE) simulations for the virtual representation of the reality in the sense of the digital twin. To achieve the objective, extensive empirical examinations were conducted in a first step, which included conventional material scientific and orthogonal cutting tests. This enabled the establishment of a database of the workpiece response with increasing thermo-mechanical loads. During the orthogonal cutting examinations, integral and locally resolved process results were measured, which were used as calibration and validation variables in the modeling of the workpiece material behavior. By extending an established friction test bench with a workpiece pre-heating system, the friction conditions between tool and workpiece could be investigated under conditions equivalent to the cutting process. Based on the experimental results, a friction model was derived, in which the observed effects of thermal softening and the localized adhesion-induced increase in the apparent friction coefficient were superposed. A phenomenological material model was developed to describe the workpiece material behavior in the cutting process. The formulation of the material mode was developed based on empirical examinations as well as results from the state of the art. The material model was implemented in an FE-chip formation simulation using a subroutine. A hybrid optimization algorithm was developed to inversely determine the material model parameters. By means of the optimization algorithm, the material model parameters could be systematically determined inversely, taking the experimentally determined process observables into account. An automated procedure linked to a user interface lowered the entry hurdle for industrial companies and unexperienced users of FE-simulations and reduced the computational effort for the inverse parameter determination to about 10 days of computational execution time. The quality of the developed models and the determined model parameters were further verified by a final deduction step using the industrial example of face turning.
Author: Marvin Hardt
Publisher: Apprimus Wissenschaftsverlag
ISBN: 3985550611
Category : Technology & Engineering
Languages : en
Pages : 204
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Book Description
The scientific goal of the present work was to model the workpiece material behavior of steels in the metal cutting process depending on the occurring thermo-mechanical loads. The results of this work shall make a significant contribution to the predictive process design of the cutting process by means of Finite Element (FE) simulations for the virtual representation of the reality in the sense of the digital twin. To achieve the objective, extensive empirical examinations were conducted in a first step, which included conventional material scientific and orthogonal cutting tests. This enabled the establishment of a database of the workpiece response with increasing thermo-mechanical loads. During the orthogonal cutting examinations, integral and locally resolved process results were measured, which were used as calibration and validation variables in the modeling of the workpiece material behavior. By extending an established friction test bench with a workpiece pre-heating system, the friction conditions between tool and workpiece could be investigated under conditions equivalent to the cutting process. Based on the experimental results, a friction model was derived, in which the observed effects of thermal softening and the localized adhesion-induced increase in the apparent friction coefficient were superposed. A phenomenological material model was developed to describe the workpiece material behavior in the cutting process. The formulation of the material mode was developed based on empirical examinations as well as results from the state of the art. The material model was implemented in an FE-chip formation simulation using a subroutine. A hybrid optimization algorithm was developed to inversely determine the material model parameters. By means of the optimization algorithm, the material model parameters could be systematically determined inversely, taking the experimentally determined process observables into account. An automated procedure linked to a user interface lowered the entry hurdle for industrial companies and unexperienced users of FE-simulations and reduced the computational effort for the inverse parameter determination to about 10 days of computational execution time. The quality of the developed models and the determined model parameters were further verified by a final deduction step using the industrial example of face turning.
Author: Prakash Mahadeo Dixit
Publisher: Springer Science & Business Media
ISBN: 1848001894
Category : Technology & Engineering
Languages : en
Pages : 599
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Book Description
Written by authorities in the subject, this book provides a complete treatment of metal forming and machining by using the computational techniques FEM, fuzzy set theory and neural networks as modelling tools. The algorithms and solved examples included make this book of value to postgraduates, senior undergraduates, and lecturers and researchers in these fields. Research and development engineers and consultants for the manufacturing industry will also find it of use.
Author: P.R.N. Childs
Publisher: Butterworth-Heinemann
ISBN: 0080524028
Category : Technology & Engineering
Languages : en
Pages : 420
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Book Description
Metal machining is the most widespread metal-shaping process in the mechanical manufacturing industry. World-wide investment in metal machining tools increases year on year - and the wealth of nations can be judged by it. This text - the most up-to-date in the field - provides in-depth discussion of the theory and application of metal machining at an advanced level. It begins with an overview of the development of metal machining and its role in the current industrial environment and continues with a discussion of the theory and practice of machining. The underlying mechanics are analysed in detail and there are extensive chapters examining applications through a discussion of simulation and process control. "Metal Machining: Theory and Applications" is essential reading for senior undergraduates and postgraduates specialising in cutting technology. It is also an invaluable reference tool for professional engineers. Professors Childs, Maekawa, Obikawa and Yamane are four of the leading authorities on metal machining and have worked together for many years.Of interest to all mechanical, manufacturing and materials engineersTheoretical and practical problems addressed
Author: Edward M. Trent
Publisher: Elsevier
ISBN: 1483292010
Category : Technology & Engineering
Languages : en
Pages : 288
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Book Description
Expanded and revised to include changes and additions to metal cutting theory. Covers developments in tool materials and industrial practice over the last seven years. Describes the stresses and temperatures acting on cutting tools and explains theirinfluence on performance. Discusses tool wear which determines cutting efficiency. Details machinability and control of tool material structure and composition.
Author: Viktor P. Astakhov
Publisher: CRC Press
ISBN: 1466571772
Category : Science
Languages : en
Pages : 321
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Book Description
Metal Cutting Mechanics outlines the fundamentals of metal cutting analysis, reducing the extent of empirical approaches to the problems as well as bridging the gap between design and manufacture. The author distinguishes his work from other works through these aspects: considering the system engineering of the cutting process id
Author: Angelos P. Markopoulos
Publisher: CRC Press
ISBN: 1315305259
Category : Technology & Engineering
Languages : en
Pages : 271
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Book Description
Modeling and machining are two terms closely related. The benefits of the application of modeling on machining are well known. The advances in technology call for the use of more sophisticated machining methods for the production of high-end components. In turn, more complex, more suitable, and reliable modeling methods are required. This book pertains to machining and modeling, but focuses on the special aspects of both. Many researchers in academia and industry, who are looking for ways to refine their work, make it more detailed, increase their accuracy and reliability, or implement new features, will gain access to knowledge in this book that is very scare to find elsewhere.
Author: Peter Groche
Publisher: Trans Tech Publications Ltd
ISBN: 3038265101
Category : Technology & Engineering
Languages : en
Pages : 672
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Book Description
Selected, peer reviewed papers from the 6th International Conference on Tribology in Manufacturing Processes & Joining by Plastic Deformation, June 22-24, 2014, Darmstadt, Germany
Author: Rüdiger Pabst
Publisher: KIT Scientific Publishing
ISBN: 386644821X
Category :
Languages : en
Pages : 70
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Book Description
Author: Volodymyr Tonkonogyi
Publisher: Springer Nature
ISBN: 3031166515
Category : Technology & Engineering
Languages : en
Pages : 606
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Book Description
This book offers a timely snapshot of innovative research and developments at the interface between manufacturing, materials and mechanical engineering, and quality assurance. It covers various manufacturing processes, such as grinding, boring, milling, broaching, coatings, including additive manufacturing. It focuses on cutting, abrasive, stamping-drawing processes, shot peening, and complex treatment. It describes temperature distribution, twisting deformation, defect formation process, failure analysis, as well as the convective heat exchange and non-uniform nanocapillary fluid cooling, highlighting the growing role of quality control, integrated management systems, and economic efficiency evaluation. It also covers vibration damping, dynamic behavior, failure probability, and strength performance methods for aviation, heterogeneous, permeable porous, and other types of materials. Gathering the best papers presented at the 4th Grabchenko’s International Conference on Advanced Manufacturing Processes (InterPartner-2022), held in Odessa, Ukraine, on September 6–9, 2022, this book offers a timely overview and extensive information on trends and technologies in manufacturing, mechanical, and materials engineering, and quality assurance. It is also intended to facilitate communication and collaboration between different groups working on similar topics and to offer a bridge between academic and industrial researchers.
Author: Jun Wang
Publisher: World Scientific
ISBN: 9789810241612
Category : Technology & Engineering
Languages : en
Pages : 564
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Book Description
Abrasive technology is becoming increasingly important in precision manufacturing. This volume contains more than 70 refereed technical papers contributed by worldwide academic researchers and industrial practitioners, on the latest development in abrasive technology. Specifically, it covers the mechanics and mechanisms of abrasive processes as well as the technologies and applications related to abrasive jet machining, nano-machining, grinding, polishing, horning and lapping. It also includes topics on high- speed machining, eco-machining and laser micro-machining technologies. The discussion is on the practical applications of abrasive technology and the associated theories make this book very useful for academic researchers and industrial practitioners.
