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Targeted Use of Forming-Induced Residual Stresses in Metal Components

Author: Wolfram Volk

Publisher: utzverlag GmbH

Published:

Total Pages: 302

ISBN-13: 3831650489

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Residual stresses are considered critical to quality in conventional manufacturing strategies. This is where the DFG’s Priority Programme 2013 comes in, looking instead at the opportunities and possibilities for improving the properties of components by targeted use of residual stresses. In the years 2017 to 2023, research teams from all over Germany were able to prove the stability, controllability and usefulness of residual stresses in flat and solid forming manufacturing processes of metallic components. In addition, the cross-project working groups achieved many insights into the fundamental understanding, simulation and, in particular, industry-oriented measurement of residual stresses. The extensive results of these six years of research activities are presented in this final report.

Book Synopsis Targeted Use of Forming-Induced Residual Stresses in Metal Components by : Wolfram Volk

Download or read book Targeted Use of Forming-Induced Residual Stresses in Metal Components written by Wolfram Volk and published by utzverlag GmbH. This book was released on with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Residual stresses are considered critical to quality in conventional manufacturing strategies. This is where the DFG’s Priority Programme 2013 comes in, looking instead at the opportunities and possibilities for improving the properties of components by targeted use of residual stresses. In the years 2017 to 2023, research teams from all over Germany were able to prove the stability, controllability and usefulness of residual stresses in flat and solid forming manufacturing processes of metallic components. In addition, the cross-project working groups achieved many insights into the fundamental understanding, simulation and, in particular, industry-oriented measurement of residual stresses. The extensive results of these six years of research activities are presented in this final report.

Production at the leading edge of technology

Author: Jens Peter Wulfsberg

Publisher: Springer Nature

Published: 2019-11-23

Total Pages: 653

ISBN-13: 3662604175

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The focus of the Congress will be leading-edge manufacturing processes. Topics include manufacturing at extreme speed, size, accuracy, methodology, use of resources, interdisciplinarity and more. Contributions from production and industrial engineering are welcome. Challenges from the areas of manufacturing, machines and production systems will be addressed. Production research constantly pushes the boundaries of what is feasible. The Congress "Production at the leading edge of technology" will highlight production processes that are advancing into areas that until recently were considered unfeasible, also in terms of methodology, use of resources and interdisciplinarity. But where does the search for new limits lead? Which limitations do we still have to overcome, which ones do we not want to overcome? The aim of the German-speaking colloquium is to establish connections between the research locations and to intensify the overall transfer of results and experience with industrial users.

Book Synopsis Production at the leading edge of technology by : Jens Peter Wulfsberg

Download or read book Production at the leading edge of technology written by Jens Peter Wulfsberg and published by Springer Nature. This book was released on 2019-11-23 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of the Congress will be leading-edge manufacturing processes. Topics include manufacturing at extreme speed, size, accuracy, methodology, use of resources, interdisciplinarity and more. Contributions from production and industrial engineering are welcome. Challenges from the areas of manufacturing, machines and production systems will be addressed. Production research constantly pushes the boundaries of what is feasible. The Congress "Production at the leading edge of technology" will highlight production processes that are advancing into areas that until recently were considered unfeasible, also in terms of methodology, use of resources and interdisciplinarity. But where does the search for new limits lead? Which limitations do we still have to overcome, which ones do we not want to overcome? The aim of the German-speaking colloquium is to establish connections between the research locations and to intensify the overall transfer of results and experience with industrial users.

Forming the Future

Author: Glenn Daehn

Publisher: Springer Nature

Published: 2021-07-10

Total Pages: 2890

ISBN-13: 3030753816

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In this collection, scientists and engineers from across industry, academia, and government present their latest improvements and innovations in all aspects of metal forming science and technology, with the intent of facilitating linkages and collaborations among these groups. Chapters cover the breadth of metal forming topics, from fundamental science to industrial application.

Book Synopsis Forming the Future by : Glenn Daehn

Download or read book Forming the Future written by Glenn Daehn and published by Springer Nature. This book was released on 2021-07-10 with total page 2890 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this collection, scientists and engineers from across industry, academia, and government present their latest improvements and innovations in all aspects of metal forming science and technology, with the intent of facilitating linkages and collaborations among these groups. Chapters cover the breadth of metal forming topics, from fundamental science to industrial application.

Handbook of Residual Stress and Deformation of Steel

Author: George E. Totten

Publisher: ASM International

Published: 2002

Total Pages: 496

ISBN-13: 1615032274

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Annotation Examines the factors that contribute to overall steel deformation problems. The 27 articles address the effect of materials and processing, the measurement and prediction of residual stress and distortion, and residual stress formation in the shaping of materials, during hardening processes, and during manufacturing processes. Some of the topics are the stability and relaxation behavior of macro and micro residual stresses, stress determination in coatings, the effects of process equipment design, the application of metallo- thermo-mechanic to quenching, inducing compressive stresses through controlled shot peening, and the origin and assessment of residual stresses during welding and brazing. Annotation c. Book News, Inc., Portland, OR (booknews.com)

Book Synopsis Handbook of Residual Stress and Deformation of Steel by : George E. Totten

Download or read book Handbook of Residual Stress and Deformation of Steel written by George E. Totten and published by ASM International. This book was released on 2002 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Examines the factors that contribute to overall steel deformation problems. The 27 articles address the effect of materials and processing, the measurement and prediction of residual stress and distortion, and residual stress formation in the shaping of materials, during hardening processes, and during manufacturing processes. Some of the topics are the stability and relaxation behavior of macro and micro residual stresses, stress determination in coatings, the effects of process equipment design, the application of metallo- thermo-mechanic to quenching, inducing compressive stresses through controlled shot peening, and the origin and assessment of residual stresses during welding and brazing. Annotation c. Book News, Inc., Portland, OR (booknews.com)

Proceedings of 8th GACM Colloquium on Computational Mechanics

Author: Tobias Gleim

Publisher: kassel university press GmbH

Published: 2019-09-04

Total Pages: 493

ISBN-13: 3737650934

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This conference book contains papers presented at the 8th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry. The conference was held from August 28th – 30th, 2019 in Kassel, hosted by the Institute of Mechanics and Dynamics of the department for civil and environmental engineering and by the chair of Engineering Mechanics / Continuum Mechanics of the department for mechanical engineering of the University of Kassel. The aim of the conference is, to bring together young scientits who are engaged in academic and industrial research on Computational Mechanics and Computer Methods in Applied Sciences. It provides a plattform to present and discuss recent results from research efforts and industrial applications. In more than 150 presentations, given by young scientists, current scientific developments and advances in engineering practice in this field are presented and discussed. The contributions of the young researchers are supplemented by a poster session and plenary talks from four senior scientists from academia and industry as well as from the GACM Best PhD Award winners 2017 and 2018.

Book Synopsis Proceedings of 8th GACM Colloquium on Computational Mechanics by : Tobias Gleim

Download or read book Proceedings of 8th GACM Colloquium on Computational Mechanics written by Tobias Gleim and published by kassel university press GmbH. This book was released on 2019-09-04 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: This conference book contains papers presented at the 8th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry. The conference was held from August 28th – 30th, 2019 in Kassel, hosted by the Institute of Mechanics and Dynamics of the department for civil and environmental engineering and by the chair of Engineering Mechanics / Continuum Mechanics of the department for mechanical engineering of the University of Kassel. The aim of the conference is, to bring together young scientits who are engaged in academic and industrial research on Computational Mechanics and Computer Methods in Applied Sciences. It provides a plattform to present and discuss recent results from research efforts and industrial applications. In more than 150 presentations, given by young scientists, current scientific developments and advances in engineering practice in this field are presented and discussed. The contributions of the young researchers are supplemented by a poster session and plenary talks from four senior scientists from academia and industry as well as from the GACM Best PhD Award winners 2017 and 2018.

Modeling of Dislocation - Grain Boundary Interactions in Gradient Crystal Plasticity Theories

Author: Erdle, Hannes

Publisher: KIT Scientific Publishing

Published: 2022-07-12

Total Pages: 184

ISBN-13: 3731511967

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A physically-based dislocation theory of plasticity is derived within an extended continuum mechanical context. Thermodynamically consistent flow rules at the grain boundaries are derived. With an analytical solution of a three-phase periodic laminate, dislocation pile-up at grain boundaries and dislocation transmission through the grain boundaries are investigated. For the finite element implementations, numerically efficient approaches are introduced based on accumulated field variables.

Book Synopsis Modeling of Dislocation - Grain Boundary Interactions in Gradient Crystal Plasticity Theories by : Erdle, Hannes

Download or read book Modeling of Dislocation - Grain Boundary Interactions in Gradient Crystal Plasticity Theories written by Erdle, Hannes and published by KIT Scientific Publishing. This book was released on 2022-07-12 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: A physically-based dislocation theory of plasticity is derived within an extended continuum mechanical context. Thermodynamically consistent flow rules at the grain boundaries are derived. With an analytical solution of a three-phase periodic laminate, dislocation pile-up at grain boundaries and dislocation transmission through the grain boundaries are investigated. For the finite element implementations, numerically efficient approaches are introduced based on accumulated field variables.

Modelling the Effects of Residual Stress and Material Removal in Sheet Metal Forming

Author: Owen James Carlisle

Publisher:

Published: 2012

Total Pages:

ISBN-13:

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The dimensional instability of metallic materials, following machining (or any method of material removal), is a common problem in the aerospace industry. This is because large parts have to be manufactured to very close tolerances and as much as 95% of the initial material may need to be removed. For machined, relatively complex, aerospace parts it would not be uncommon to see around 50% difference in the simulated results from the actual results, with even simple geometries showing around 19%-40% error. It is believed that a significant portion of these errors are due to a lack of: understanding of how the residual stresses redistribute following material removal; residual stress measuring capabilities; finite element (FE) modelling capabilities; knowledge of the additional residual stresses induced from the machining process (from varying cutting speeds, feed rates, tools, temperatures etc) and finally how the multiaxial residual stresses alter the shape of the part. This project improves the knowledge base of many of these topics. This work involved the development of an automated layer removal method for residual stress measurements in cold rolled sheet metal. This was needed due to the number of residual stress measurements that were required for modelling purposes. The method can determine the residual stresses in the rolling direction for cold rolled sheet material using a single strain gauge. Moreover, it is simple to set up and the total cost of the test rig and subsequent measurements is relatively low. Furthermore, in this project, a number of sheet metal aluminium parts were formed to different radii. The parts were then subsequently chemically milled in stages; the dimensional changes following each material removal being measured. This process was simulated using a commercially available FE package called PAM-STAMP. The FE results for distortion did not show good agreement when compared to the measured results; however, the residual stress measurements provided an unexpected understanding into the cause of the error. The results of the project improve the understanding of how residual stress change the shape of components and give an insight into the modelling parameters needed.

Book Synopsis Modelling the Effects of Residual Stress and Material Removal in Sheet Metal Forming by : Owen James Carlisle

Download or read book Modelling the Effects of Residual Stress and Material Removal in Sheet Metal Forming written by Owen James Carlisle and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The dimensional instability of metallic materials, following machining (or any method of material removal), is a common problem in the aerospace industry. This is because large parts have to be manufactured to very close tolerances and as much as 95% of the initial material may need to be removed. For machined, relatively complex, aerospace parts it would not be uncommon to see around 50% difference in the simulated results from the actual results, with even simple geometries showing around 19%-40% error. It is believed that a significant portion of these errors are due to a lack of: understanding of how the residual stresses redistribute following material removal; residual stress measuring capabilities; finite element (FE) modelling capabilities; knowledge of the additional residual stresses induced from the machining process (from varying cutting speeds, feed rates, tools, temperatures etc) and finally how the multiaxial residual stresses alter the shape of the part. This project improves the knowledge base of many of these topics. This work involved the development of an automated layer removal method for residual stress measurements in cold rolled sheet metal. This was needed due to the number of residual stress measurements that were required for modelling purposes. The method can determine the residual stresses in the rolling direction for cold rolled sheet material using a single strain gauge. Moreover, it is simple to set up and the total cost of the test rig and subsequent measurements is relatively low. Furthermore, in this project, a number of sheet metal aluminium parts were formed to different radii. The parts were then subsequently chemically milled in stages; the dimensional changes following each material removal being measured. This process was simulated using a commercially available FE package called PAM-STAMP. The FE results for distortion did not show good agreement when compared to the measured results; however, the residual stress measurements provided an unexpected understanding into the cause of the error. The results of the project improve the understanding of how residual stress change the shape of components and give an insight into the modelling parameters needed.

Advanced Materials and Manufacturing Techniques for Biomedical Applications

Author: Arbind Prasad

Publisher: John Wiley & Sons

Published: 2023-12-12

Total Pages: 356

ISBN-13: 1394166966

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ADVANCED MATERIALS and MANUFACTURING TECHNIQUES for BIOMEDICAL APPLICATIONS The book provides essential knowledge for the synthesis of biomedical products, development, nanomaterial properties, fabrication processes, and design techniques for different applications, as well as process design and optimization. In origin, biomaterials can come from nature or be synthesized in the laboratory with a variety of approaches that use metals, polymers, ceramic, or composite materials. They are often used or adapted for various biomedical applications. Biomaterials are commonly used in scaffolds, orthopedic, wound healing, fracture fixation, surgical sutures, artificial organ developments, pins and screws to stabilize fractures, surgical mesh, breast implants, artificial ligaments and tendons, and drug delivery systems. The sixteen chapters in Advanced Materials and Manufacturing Techniques in Biomedical Applications cover the synthesis, processing, design, manufacturing, and characterization of advanced materials; self-healing, bioinspired, nature-resourced, nanobiomaterials for biomedical applications; and manufacturing techniques such as rapid prototyping, additive manufacturing, etc. Audience The book is for engineers, technologists, and researchers working in the area of biomedical engineering and manufacturing techniques. It is also appropriate for upper-level undergraduate and graduate students.

Book Synopsis Advanced Materials and Manufacturing Techniques for Biomedical Applications by : Arbind Prasad

Download or read book Advanced Materials and Manufacturing Techniques for Biomedical Applications written by Arbind Prasad and published by John Wiley & Sons. This book was released on 2023-12-12 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: ADVANCED MATERIALS and MANUFACTURING TECHNIQUES for BIOMEDICAL APPLICATIONS The book provides essential knowledge for the synthesis of biomedical products, development, nanomaterial properties, fabrication processes, and design techniques for different applications, as well as process design and optimization. In origin, biomaterials can come from nature or be synthesized in the laboratory with a variety of approaches that use metals, polymers, ceramic, or composite materials. They are often used or adapted for various biomedical applications. Biomaterials are commonly used in scaffolds, orthopedic, wound healing, fracture fixation, surgical sutures, artificial organ developments, pins and screws to stabilize fractures, surgical mesh, breast implants, artificial ligaments and tendons, and drug delivery systems. The sixteen chapters in Advanced Materials and Manufacturing Techniques in Biomedical Applications cover the synthesis, processing, design, manufacturing, and characterization of advanced materials; self-healing, bioinspired, nature-resourced, nanobiomaterials for biomedical applications; and manufacturing techniques such as rapid prototyping, additive manufacturing, etc. Audience The book is for engineers, technologists, and researchers working in the area of biomedical engineering and manufacturing techniques. It is also appropriate for upper-level undergraduate and graduate students.

Residual Stresses in Composite Materials

Author: Mahmood M. Shokrieh

Publisher: Woodhead Publishing

Published: 2014-02-14

Total Pages: 407

ISBN-13: 0857098594

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Residual stresses are a common phenomenon in composite materials. They can either add to or significantly reduce material strength. Because of the increasing demand for high-strength, light-weight materials such as composites and their wide range of applications in the aerospace and automotive industries, in civil infrastructure and in sporting applications, it is critical that the residual stresses of composite materials are understood and measured correctly. The first part of this important book reviews destructive and non-destructive testing (NDT) techniques for measuring residual stresses. Various mathematical (analytical and numerical) methods for calculation of residual stresses in composite materials are also presented. Chapters in the first section of the book discuss the simulated hole drilling method, the slitting/crack compliance method, measuring residual stresses in homogeneous and composite glass materials using photoelastic techniques, and modeling residual stresses in composite materials. The second part of the book discusses residual stresses in polymer matrix, metal-matrix and a range of other types of composites. Moreover, the addition of nanoparticles to the matrix of polymeric composites as a new technique for reduction of residual stresses is discussed. Residual stresses in composite materials provides a comprehensive overview of this important topic, and is an invaluable reference text for both academics and professionals working in the mechanical engineering, civil engineering, aerospace, automotive, marine and sporting industries. Reviews destructive and non-destructive testing (NDT) techniques for measuring residual stresses Discusses residual stresses in polymer matrix, metal-matrix and other types of composite Considers the addition of nanoparticles to the matrix of polymeric composites as a new technique for reduction of residual stresses

Book Synopsis Residual Stresses in Composite Materials by : Mahmood M. Shokrieh

Download or read book Residual Stresses in Composite Materials written by Mahmood M. Shokrieh and published by Woodhead Publishing. This book was released on 2014-02-14 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Residual stresses are a common phenomenon in composite materials. They can either add to or significantly reduce material strength. Because of the increasing demand for high-strength, light-weight materials such as composites and their wide range of applications in the aerospace and automotive industries, in civil infrastructure and in sporting applications, it is critical that the residual stresses of composite materials are understood and measured correctly. The first part of this important book reviews destructive and non-destructive testing (NDT) techniques for measuring residual stresses. Various mathematical (analytical and numerical) methods for calculation of residual stresses in composite materials are also presented. Chapters in the first section of the book discuss the simulated hole drilling method, the slitting/crack compliance method, measuring residual stresses in homogeneous and composite glass materials using photoelastic techniques, and modeling residual stresses in composite materials. The second part of the book discusses residual stresses in polymer matrix, metal-matrix and a range of other types of composites. Moreover, the addition of nanoparticles to the matrix of polymeric composites as a new technique for reduction of residual stresses is discussed. Residual stresses in composite materials provides a comprehensive overview of this important topic, and is an invaluable reference text for both academics and professionals working in the mechanical engineering, civil engineering, aerospace, automotive, marine and sporting industries. Reviews destructive and non-destructive testing (NDT) techniques for measuring residual stresses Discusses residual stresses in polymer matrix, metal-matrix and other types of composite Considers the addition of nanoparticles to the matrix of polymeric composites as a new technique for reduction of residual stresses

Residual Stresses 2018

Author: Marc Seefeldt

Publisher: Materials Research Forum LLC

Published: 2018-10-10

Total Pages: 310

ISBN-13: 1945291893

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The European Conference on Residual Stresses (ECRS) series is the leading European forum for scientific exchange on internal and residual stresses in materials. It addresses both academic and industrial experts and covers a broad gamut of stress-related topics from instrumentation via experimental and modelling methodology up to stress problems in specific processes such as welding or shot-peening, and their impact on materials properties. Chapters: Diffraction Methods; Mechanical Relaxation Methods; Acoustic and Electromagnetic Methods; Composites, Nano and Microstructures; Films, Coatings and Oxides; Cold Working and Machining; Heat Treatments and Phase Transformations; Welding, Fatigue and Fracture: Stresses in Additive Manufacturing.

Book Synopsis Residual Stresses 2018 by : Marc Seefeldt

Download or read book Residual Stresses 2018 written by Marc Seefeldt and published by Materials Research Forum LLC. This book was released on 2018-10-10 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: The European Conference on Residual Stresses (ECRS) series is the leading European forum for scientific exchange on internal and residual stresses in materials. It addresses both academic and industrial experts and covers a broad gamut of stress-related topics from instrumentation via experimental and modelling methodology up to stress problems in specific processes such as welding or shot-peening, and their impact on materials properties. Chapters: Diffraction Methods; Mechanical Relaxation Methods; Acoustic and Electromagnetic Methods; Composites, Nano and Microstructures; Films, Coatings and Oxides; Cold Working and Machining; Heat Treatments and Phase Transformations; Welding, Fatigue and Fracture: Stresses in Additive Manufacturing.