Residual Stresses In Friction Stir Welding
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Residual Stresses in Friction Stir Welding
Author | : Nilesh Kumar,Rajiv S. Mishra,John A. Baumann |
Publsiher | : Butterworth-Heinemann |
Total Pages | : 60 |
Release | : 2013-11-20 |
Genre | : Technology & Engineering |
ISBN | : 9780128007327 |
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This book describes the fundamentals of residual stresses in friction stir welding and reviews the data reported for various materials. Residual stresses produced during manufacturing processes lead to distortion of structures. It is critical to understand and mitigate residual stresses. From the onset of friction stir welding, claims have been made about the lower magnitude of residual stresses. The lower residual stresses are partly due to lower peak temperature and shorter time at temperature during friction stir welding. A review of residual stresses that result from the friction stir process and strategies to mitigate it have been presented. Friction stir welding can be combined with additional in-situ and ex-situ manufacturing steps to lower the final residual stresses. Modeling of residual stresses highlights the relationship between clamping constraint and development of distortion. For many applications, management of residual stresses can be critical for qualification of component/structure. Reviews magnitude of residual stresses in various metals and alloys Discusses mitigation strategies for residual stresses during friction stir welding Covers fundamental origin of residual stresses and distortion
Friction Stir Welding
Author | : Daniela Lohwasser,Zhan Chen |
Publsiher | : Elsevier |
Total Pages | : 436 |
Release | : 2009-12-18 |
Genre | : Technology & Engineering |
ISBN | : 9781845697716 |
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Friction stir welding (FSW) is a highly important and recently developed joining technology that produces a solid phase bond. It uses a rotating tool to generate frictional heat that causes material of the components to be welded to soften without reaching the melting point and allows the tool to move along the weld line. Plasticized material is transferred from the leading edge to trailing edge of the tool probe, leaving a solid phase bond between the two parts. Friction stir welding: from basics to applications reviews the fundamentals of the process and how it is used in industrial applications. Part one discusses general issues with chapters on topics such as basic process overview, material deformation and joint formation in friction stir welding, inspection and quality control and friction stir welding equipment requirements and machinery descriptions as well as industrial applications of friction stir welding. A chapter giving an outlook on the future of friction stir welding is included in Part one. Part two reviews the variables in friction stir welding including residual stresses in friction stir welding, effects and defects of friction stir welds, modelling thermal properties in friction stir welding and metallurgy and weld performance. With its distinguished editors and international team of contributors, Friction stir welding: from basics to applications is a standard reference for mechanical, welding and materials engineers in the aerospace, automotive, railway, shipbuilding, nuclear and other metal fabrication industries, particularly those that use aluminium alloys. Provides essential information on topics such as basic process overview, materials deformation and joint formation in friction stir welding Inspection and quality control and friction stir welding equipment requirements are discussed as well as industrial applications of friction stir welding Reviews the variables involved in friction stir welding including residual stresses, effects and defects of friction stir welds, modelling thermal properties, metallurgy and weld performance
Residual Stress Analysis on Welded Joints by Means of Numerical Simulation and Experiments
Author | : Paolo Ferro,Filippo Berto |
Publsiher | : BoD – Books on Demand |
Total Pages | : 164 |
Release | : 2018-05-16 |
Genre | : Technology & Engineering |
ISBN | : 9781789231069 |
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The ability to quantify residual stresses induced by welding processes through experimentation or numerical simulation has become, today more than ever, of strategic importance in the context of their application to advanced design. This is an ongoing challenge that commenced many years ago. Recent design criteria endeavour to quantify the effect of residual stresses on fatigue strength of welded joints to allow a more efficient use of materials and a greater reliability of welded structures. The aim of the present book is contributing to these aspects of design through a collection of case-studies that illustrate both standard and advanced experimental and numerical methodologies used to assess the residual stress field in welded joints. The work is intended to be of assistance to designers, industrial engineers and academics who want to deepen their knowledge of this challenging topic.
Friction Stir Welding and Processing X
Author | : Yuri Hovanski,Rajiv Mishra,Yutaka Sato,Piyush Upadhyay,David Yan |
Publsiher | : Springer |
Total Pages | : 283 |
Release | : 2019-02-11 |
Genre | : Technology & Engineering |
ISBN | : 9783030057527 |
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This book is a compilation of the recent progress on friction stir technologies including high-temperature applications, industrial applications, dissimilar alloy/materials, lightweight alloys, simulation, control, characterization, and derivative technologies. The volume offers a current look at friction stir welding technology from application to characterization and from modeling to R&D. Contributions document advances in application, controls, and simulation of the friction stir process to aid researchers in seeing the current state-of-the-art.
Current Trends in Friction Stir Welding FSW and Friction Stir Spot Welding FSSW
Author | : Mukuna Patrick Mubiayi,Esther Titilayo Akinlabi,Mamookho Elizabeth Makhatha |
Publsiher | : Springer |
Total Pages | : 206 |
Release | : 2018-06-14 |
Genre | : Technology & Engineering |
ISBN | : 9783319927503 |
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This book provides an overview of friction stir welding and friction stir spot welding with a focus on aluminium to aluminium and aluminium to copper. It also discusses experimental results for friction stir spot welding between aluminium and copper, offering a good foundation for researchers wishing to conduct more investigations on FSSW Al/Cu. Presenting full methodologies for manufacturing and case studies on FSSW Al/Cu, which can be duplicated and used for industrial purposes, it also provides a starting point for researchers and experts in the field to investigate the FSSW process in detail. A variant of the friction stir welding process (FSW), friction stir spot welding (FSSW) is a relatively new joining technique and has been used in a variety of sectors, such as the automotive and aerospace industries. The book describes the microstructural evolution, chemical and mechanical properties of FSW and FSSW, including a number of case studies.
Friction Stir Welding and Processing
Author | : Rajiv Sharan Mishra,Partha Sarathi De,Nilesh Kumar |
Publsiher | : Springer |
Total Pages | : 347 |
Release | : 2014-08-04 |
Genre | : Technology & Engineering |
ISBN | : 9783319070438 |
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This book lays out the fundamentals of friction stir welding and processing and builds toward practical perspectives. The authors describe the links between the thermo-mechanical aspects and the microstructural evolution and use of these for the development of the friction stir process as a broader metallurgical tool for microstructural modification and manufacturing. The fundamentals behind the practical aspects of tool design, process parameter selection and weld related defects are discussed. Local microstructural refinement has enabled new concepts of superplastic forming and enhanced low temperature forming. The collection of friction stir based technologies is a versatile set of solid state manufacturing tools.
Mechanics of Materials in Modern Manufacturing Methods and Processing Techniques
Author | : Vadim V. Silberschmidt |
Publsiher | : Elsevier |
Total Pages | : 465 |
Release | : 2020-04-03 |
Genre | : Technology & Engineering |
ISBN | : 9780128182338 |
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Mechanics of Materials in Modern Manufacturing Methods and Processing Techniques provides a detailed overview of the latest developments in the mechanics of modern metal forming manufacturing. Focused on mechanics as opposed to process, it looks at the mechanical behavior of materials exposed to loading and environmental conditions related to modern manufacturing processes, covering deformation as well as damage and fracture processes. The book progresses from forming to machining and surface-treatment processes, and concludes with a series of chapters looking at recent and emerging technologies. Other topics covered include simulations in autofrettage processes, modeling strategies related to cutting simulations, residual stress caused by high thermomechanical gradients and pultrusion, as well as the mechanics of the curing process, forging, and cold spraying, among others. Some non-metallic materials, such as ceramics and composites, are covered as well. Synthesizes the latest research in the mechanics of modern metal forming processes Suggests theoretical models and numerical codes to predict mechanical responses Covers mechanics of shot peening, pultrusion, hydroforming, magnetic pulse forming Considers applicability of different materials and processes for optimum performance
Friction Stir Welding of Dissimilar Alloys and Materials
Author | : Nilesh Kumar,Rajiv S. Mishra,Wei Yuan |
Publsiher | : Butterworth-Heinemann |
Total Pages | : 134 |
Release | : 2015-03-05 |
Genre | : Technology & Engineering |
ISBN | : 9780128026212 |
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This book will summarize research work carried out so far on dissimilar metallic material welding using friction stir welding (FSW). Joining of dissimilar alloys and materials are needed in many engineering systems and is considered quite challenging. Research in this area has shown significant benefit in terms of ease of processing, material mixing, and superior mechanical properties such as joint efficiencies. A summary of these results will be discussed along with potential guidelines for designers. Explains solid phase process and distortion of work piece Addresses dimensional stability and repeatability Addresses joint strength Covers metallurgical properties in the joint area Covers fine microstructure Introduces improved materials use (e.g., joining different thicknesses) Covers decreased fuel consumption in light weight aircraft Addresses automotive and ship applications