Download Residual Stresses in Friction Stir Welding Ebook PDF

Residual Stress in Friction Stir Welding and Laser-Assisted Friction Stir Welding by Numerical Simulation and Experiments

Residual Stress in Friction Stir Welding and Laser-Assisted Friction Stir Welding by Numerical Simulation and Experiments
A Book

by Caterina Casavola

  • Publisher : Unknown Publisher
  • Release : 2018
  • Pages : 129
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
GET BOOK

The friction stir welding (FSW) has become an important welding technique to join materials that are difficult to weld by traditional fusion welding technology. In this technique, the material is not led to fusion, and the joint is the result of the rotation and movement along the welding line of the tool that causes softening of material due to frictional heat and the stirring of the same. In FSW, the temperature does not reach the fusion value of the materials, and this helps to decrease the residual stress values. However, due to the higher force involved in the weld and, thus, the rigid clamping used, the residual stresses are not low in general in this technique. As the presence of high residual stress values influences the post-weld mechanical properties, e.g. fatigue properties, it is important to investigate the residual stress distribution in the FSW welds. In this chapter, two numerical models that predict temperatures and residual stresses in friction stir welding and laser-assisted friction stir welding will be described. Experimental measurements of temperatures and residual stress will be carried out to validate the prediction of the models.

Residual Stresses in Friction Stir Welding

Residual Stresses in Friction Stir Welding
A Book

by Nilesh Kumar,Rajiv S. Mishra,John A. Baumann

  • Publisher : Butterworth-Heinemann
  • Release : 2013-11-20
  • Pages : 60
  • ISBN : 012800732X
  • Language : En, Es, Fr & De
GET BOOK

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

Characterization of Residual Stress as a Function of Friction Stir Welding Parameters in Oxide Dispersion Strengthened (ODS) Steel MA956

Characterization of Residual Stress as a Function of Friction Stir Welding Parameters in Oxide Dispersion Strengthened (ODS) Steel MA956
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2015
  • Pages : 9
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
GET BOOK

This article characterizes the residual stresses generated by friction stir welding of oxide dispersion strengthened steel MA956 over a series of welding conditions. A plate of MA956 steel was friction stir welded at three conditions: 500 rpm/25 millimeters per minute (mmpm), 400 rpm/50 mmpm and 400 rpm/100 mmpm. The residual stresses across these welds were measured using both x-ray and neutron diffraction techniques. Longitudinal residual stresses up to eighty percent of the yield strength were observed for the 400 rpm/100 mmpm condition. Increasing the traverse rate while holding the rotational speed fixed increased the residual stress levels in the stir zone and at the stir zone-thermomechanically affected zone interface. The stress profiles displayed the characteristic M shape, and the asymmetry between advancing and retreating stress peaks was limited, occurring mainly on the root side of the weld. The large magnitude of the stresses was maintained throughout the thickness of the plates.

Residual Stresses in Friction Stir Welding

Residual Stresses in Friction Stir Welding
A Book

by Nilesh Kumar,Rajiv S. Mishra,John A. Baumann

  • Publisher : Butterworth-Heinemann
  • Release : 2013-11-21
  • Pages : 60
  • ISBN : 9780128001509
  • Language : En, Es, Fr & De
GET BOOK

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 and Processing

Friction Stir Welding and Processing
Science and Engineering

by Rajiv Sharan Mishra,Partha Sarathi De,Nilesh Kumar

  • Publisher : Springer
  • Release : 2014-08-04
  • Pages : 338
  • ISBN : 3319070436
  • Language : En, Es, Fr & De
GET BOOK

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.

Residual Stress Analysis on Welded Joints by Means of Numerical Simulation and Experiments

Residual Stress Analysis on Welded Joints by Means of Numerical Simulation and Experiments
A Book

by Paolo Ferro,Filippo Berto

  • Publisher : BoD – Books on Demand
  • Release : 2018-05-16
  • Pages : 162
  • ISBN : 178923106X
  • Language : En, Es, Fr & De
GET BOOK

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.

Advances in Friction-Stir Welding and Processing

Advances in Friction-Stir Welding and Processing
A Book

by M.-K. Besharati-Givi,P. Asadi

  • Publisher : Elsevier
  • Release : 2014-12-08
  • Pages : 796
  • ISBN : 0857094556
  • Language : En, Es, Fr & De
GET BOOK

Friction-stir welding (FSW) is a solid-state joining process primarily used on aluminum, and is also widely used for joining dissimilar metals such as aluminum, magnesium, copper and ferrous alloys. Recently, a friction-stir processing (FSP) technique based on FSW has been used for microstructural modifications, the homogenized and refined microstructure along with the reduced porosity resulting in improved mechanical properties. Advances in friction-stir welding and processing deals with the processes involved in different metals and polymers, including their microstructural and mechanical properties, wear and corrosion behavior, heat flow, and simulation. The book is structured into ten chapters, covering applications of the technology; tool and welding design; material and heat flow; microstructural evolution; mechanical properties; corrosion behavior and wear properties. Later chapters cover mechanical alloying and FSP as a welding and casting repair technique; optimization and simulation of artificial neural networks; and FSW and FSP of polymers. Provides studies of the microstructural, mechanical, corrosion and wear properties of friction-stir welded and processed materials Considers heat generation, heat flow and material flow Covers simulation of FSW/FSP and use of artificial neural network in FSW/FSP

Friction Stir Welding and Processing X

Friction Stir Welding and Processing X
A Book

by Yuri Hovanski,Rajiv Mishra,Yutaka Sato,Piyush Upadhyay,David Yan

  • Publisher : Springer
  • Release : 2019-02-11
  • Pages : 283
  • ISBN : 3030057526
  • Language : En, Es, Fr & De
GET BOOK

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.

Friction Stir Welding

Friction Stir Welding
From Basics to Applications

by Daniela Lohwasser,Zhan Chen

  • Publisher : Elsevier
  • Release : 2009-12-18
  • Pages : 436
  • ISBN : 1845697715
  • Language : En, Es, Fr & De
GET BOOK

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

Multi-objective Evolutionary Optimisation for Product Design and Manufacturing

Multi-objective Evolutionary Optimisation for Product Design and Manufacturing
A Book

by Lihui Wang,Amos H. C. Ng,Kalyanmoy Deb

  • Publisher : Springer Science & Business Media
  • Release : 2011-09-06
  • Pages : 505
  • ISBN : 9780857296528
  • Language : En, Es, Fr & De
GET BOOK

With the increasing complexity and dynamism in today’s product design and manufacturing, more optimal, robust and practical approaches and systems are needed to support product design and manufacturing activities. Multi-objective Evolutionary Optimisation for Product Design and Manufacturing presents a focused collection of quality chapters on state-of-the-art research efforts in multi-objective evolutionary optimisation, as well as their practical applications to integrated product design and manufacturing. Multi-objective Evolutionary Optimisation for Product Design and Manufacturing consists of two major sections. The first presents a broad-based review of the key areas of research in multi-objective evolutionary optimisation. The second gives in-depth treatments of selected methodologies and systems in intelligent design and integrated manufacturing. Recent developments and innovations in multi-objective evolutionary optimisation make Multi-objective Evolutionary Optimisation for Product Design and Manufacturing a useful text for a broad readership, from academic researchers to practicing engineers.

Fatigue in Friction Stir Welding

Fatigue in Friction Stir Welding
A Book

by J. Brian Jordon,Robert Amaro,Paul Allison,Harish Rao

  • Publisher : Butterworth-Heinemann
  • Release : 2019-02-27
  • Pages : 196
  • ISBN : 0128163054
  • Language : En, Es, Fr & De
GET BOOK

Fatigue in Friction Stir Welding provides knowledge on how to design and fabricate high performance, fatigue resistance FSW joints. It summarizes fatigue characterizations of key FSW configurations, including butt and lap-shear joints. The book's main focus is on fatigue of aluminum alloys, but discussions of magnesium, steel, and titanium alloys are also included. The FSW process-structure-fatigue performance relationships, including tool rotation, travel speeds, and pin tools are covered, along with sections on extreme fatigue conditions and environments, including multiaxial, variable amplitude, and corrosion effects on fatigue of the FSW. From a practical design perspective, appropriate fatigue design guidelines, including engineering and microstructure-sensitive modeling approaches are discussed. Finally, an appendix with numerous representative fatigue curves for design and reference purposes completes the work. Provides a comprehensive characterization of fatigue behavior for various FSW joints and alloy combinations, along with an in-depth presentation on crack initiation and growth mechanisms Presents the relationships between process parameters and fatigue behavior Discusses modeling strategies and design recommendations, along with experimental data for reference purposes

Trends In Welding Research

Trends In Welding Research
Proceedings of the 7Th International Conference

by Stan A. David

  • Publisher : ASM International
  • Release : 2006
  • Pages : 1025
  • ISBN : 1615031081
  • Language : En, Es, Fr & De
GET BOOK

Neutrons and Synchrotron Radiation in Engineering Materials Science

Neutrons and Synchrotron Radiation in Engineering Materials Science
From Fundamentals to Material and Component Characterization

by Walter Reimers,Anke Rita Kaysser-Pyzalla,Andreas Schreyer,Helmut Clemens

  • Publisher : John Wiley & Sons
  • Release : 2008-06-25
  • Pages : 460
  • ISBN : 3527621938
  • Language : En, Es, Fr & De
GET BOOK

Besides its coverage of the four important aspects of synchrotron sources, materials and material processes, measuring techniques, and applications, this ready reference presents both important method types: diffraction and tomography. Following an introduction, a general section leads on to methods, while further sections are devoted to emerging methods and industrial applications. In this way, the text provides new users of large-scale facilities with easy access to an understanding of both the methods and opportunities offered by different sources and instruments.

Trends in Welding Research 2012: Proceedings of the 9th International Conference

Trends in Welding Research 2012: Proceedings of the 9th International Conference

by Tarasankar DebRoy, Stan A. David, John N. DuPont, Toshihiko Koseki, Harry K. Bhadeshia

  • Publisher : ASM International
  • Release : 2013-03-01
  • Pages : 1116
  • ISBN : 1627089985
  • Language : En, Es, Fr & De
GET BOOK

The Trends conference attracts the world's leading welding researchers. Topics covered in this volume include friction stir welding, sensing, control and automation, microstructure and properties, welding processes, procedures and consumables, weldability, modeling, phase transformations, residual stress and distortion, physical processes in welding, and properties and structural integrity of weldments.

Applied Engineering, Materials and Mechanics

Applied Engineering, Materials and Mechanics
Proceedings of the 2016 International Conference on Applied Engineering, Materials and Mechanics (ICAEMM 2016)

by Jong Wan Hu

  • Publisher : World Scientific
  • Release : 2016-07-14
  • Pages : 352
  • ISBN : 9813146591
  • Language : En, Es, Fr & De
GET BOOK

ICAEMM2016 is an annual international conference that aims to present research outcomes undertaken in applied engineering, materials and mechanics. The book is a collection of 48 selected peer-reviewed articles, organized into three main chapters — advanced materials and power energy theory and studies; management technology and construction engineering applications; and mechanical and hydrology engineering design and applications. This conference brings together scientists, scholars, engineers and students from universities, research institutes and industries all over the world to share their latest research results. The conference also fosters collaboration among organizations and researchers alike in the areas of applied mechanics and materials science. Contents:The Mechanical Properties of SS400C3 Plate by CSP Produced Under the Hot Rolled Pickled Deep Drawing (Y X Liu, Y J Meng, W X Li, X Guan and B Yang)Effect of Extrusion Deformation on Microstructure Evolution of Spray-Formed 7055 Aluminum Alloy (Y Z Xiang, J S Qiao, P J Wang and H Zhang)Innovation Design of Flexible Manipulator by TRIZ (G H Gao and H Wang)Application of TRIZ Contradiction Theory in Innovative Design of the Potted Filling Soil Mechanism (G H Gao and F Li)Institutional Analysis of the Development and Policy on Sino–US Energy on Saving and New Energy Vehicles (W J Wu and L J Zhu)Improved Performance of LiCoO2 Cathode Enabled by Electrode Sputtering Coating with Al2O3 (X Y Dai, Y T Lu, A J Zhou, L P Wang, C Fan and J Z Li)Antimicrobial Finishing of Polyester Fabrics Using Silica Nanoparticles ( Weeranuch Kanjanapiboon, Supakit Achiwawanich, Potjanart Suwanruji and Jantip Setthayanond)Preparation and Characterization of Manganese Dioxide (MnO2) as a Cathode Catalyst for Direct Methanol Fuel Cells (Duangkamon Phuakkhaw, Atchana Wongchaisuwat, Siree Tangbunsuk and Pinsuda Viravathana)Numerical Simulation of the Energy Deposition in the HIPIB Irradiating Process of Ti Target (Ming Gao, Rui Hou, Yong You and Mengru Lv)Research on the Performance of the Offshore-Platform Air Filter Based on the Porous Medium Model (N Ye, T Sun, C-J Sun and Z-W Ma)Analysis of the Reasons Behind the Fracture of the 220kV Pipe Busbar Horizontal Line Clamp (Liu, Z-B Fan and M D Gao)Analysis of Hydrocarbons and Carbon Dioxide Emissions from Diesel Common Rail Engines and Finding the Correlation Between Velocity and Emissions in the Cases of Lancia Thesis and Citroen C4 (Lorenc Malka, Andonaq Londo, Alemayehug Gebremedhin and Klodian Dhoska)Effect of Na2O on Acid Resistance of Alumina-based Ceramic Proppant (J L Ma, B L Wu and T T Wu)The Application of Digital Technologies in Furniture Design (Jun Wang and Zhi Hui Wu)Research on the Bored Pile Construction Technique of Alternating Screw Drills and Percussion Drills (J-Y Shao, X-M Cao and Y-L Song)Research on Construction Technology of Color Steel Plate Roof in Situ Profiling and Installation (S Zhu, H-P Wang and X-X Meng)Study on a Flexible Manipulator Platform (G-H Gap and M Y Song)Effect of Pore Solution Alkalinity of Fly Ash-Cement Mixture on ASTM C 1260/C 1567 Mortar Bar Expansion (C-S Shon and Dan G Zollinger)Effect of Vibration Mixing on Performance of Recycled Concrete (S L Wang, S M Zhang, M M Zhang and W Liu)Research on Mechanical Strength and Residual Stress in Friction Stir Welds of Spatial 3-D Circular Structure (X C Song, F Cui, J S Gao, X S Feng and L J Guo)Cracking Pattern Analysis of Concrete Pavement on Asphalt Stabilized Base and Econo-Crete Base (Q Wang and L Qi)A Review of Coastal Hazard Management Performances (K H Kim and W Agnes)Mode Confusion for Estimating the Longitudinal Thermal Stress of Continuously Welded Rail (R Wang, Z J Yu and L Q Zhu)Investigation of Pore Size Distribution in Cement Paste Using Mercury Intrusion Porosimetry and Backscattered Electron Image Analysis (S X Feng and X G Sun)Impressed Current Cathodic Protection Behavior of Reinforced Concrete Specimen Using MMO Ti-Mesh Anode (J-A Jeong and E-S Jeong)The Unascertained Regression Analysis Method and Its Application in Building Material Sales Prediction (J L Chen and H B Zhang)Research on Inventory Control for Equipment Maintenance Spare Parts (X M Zhang, W Wu and H Z Ren)Impact of Environmental Regulation on Corporate Environmental Investment (Heng Ma and Jun Zhang)Using Frequency Sweep Strain Control to Study the Rheological Properties of Malaysian's Asphalt Binder (Mohammed Hadi Nahi, Ibrahim Kamaruddin, Salah E Zoorob and Madzlan Napiah)Numerical Simulation of Heated Concrete Failure on the Levels of the Meso-Structure (W H Wang and C Wang)Analysis of Warping Deformation of Laser Bracket Based on Moldflow (Weidong Wang, Song Jishun, Chen and Jiangping)Prediction Deterioration of Insulation Process Based on the Partial Discharge Thermal Fluctuation Theory (M N Dubyago, N K Poluyanovich and D V Burkov)A File Storage Service on a Cloud Computing Environment for Digital Libraries (Liu Jing)A Design Procedure for the Hinge System in a Heavy Foldable Container (Y-S Lee, D-K Lee and S-H Yoon)Viable Seismic Strengthening Solutions for RC Wide Beam-Column Joints (A Masi, G Santarsiero, A Mossucca and D Nigro)Optimization of Gas Turbine Fir-Tree Attachment Based on Redesigning the Transition Area with Double-Arc and Spline Curve (H M Zong, H L Tao, Q Gao and C Q Tan)Compensation of the Deformed Ram Spindle of a Horizontal Boring Machine (Y J Chen and J P Hung)Study on Motion Response of Spar Foundation Based on AWQA (K Fan, C H Jiang, H Lv and M Y Guo)Numerical Analysis on the Effects of Shoal on the Ship Wave (K H Kim and J S Seo)Investigation of Characteristics of Wave Induced Currents Using Hydraulic Model Experiment (K H Kim and J S Seo)The Design and Application of Motion Control System Based on PLCopen Standard (F S Li)Dye-Sensitized Solar Cells Using Liquid Phase Deposition Titania Thin Films (H J Chen, D T Kong, N Wang and H C He)Chebyshev Cardinal Functions for Solving Obstacle Boundary Value Problems (Zakieh Avazzadeh and Mohammad Heydari)Experimental Study on Linear Pressure Loss of Spray Hose (Y Gong, X

Handbook of Aluminum

Handbook of Aluminum
Volume 2: Alloy Production and Materials Manufacturing

by George E. Totten,D. Scott MacKenzie

  • Publisher : CRC Press
  • Release : 2003-04-25
  • Pages : 736
  • ISBN : 9780203912607
  • Language : En, Es, Fr & De
GET BOOK

This reference provides thorough and in-depth coverage of the latest production and processing technologies encountered in the aluminum alloy industry, discussing current analytical methods for aluminum alloy characterization as well as extractive metallurgy, smelting, master alloy formation, and recycling. The Handbook of Aluminum: Volume 2 examin

Design and Modeling of Mechanical Systems

Design and Modeling of Mechanical Systems
Proceedings of the Fifth International Conference Design and Modeling of Mechanical Systems, CMSM ́2013, Djerba, Tunisia, March 25-27, 2013

by Mohamed Haddar,Lotfi Romdhane,Jamel Louati,Abdelmajid Ben Amara

  • Publisher : Springer Science & Business Media
  • Release : 2013-03-12
  • Pages : 665
  • ISBN : 3642371434
  • Language : En, Es, Fr & De
GET BOOK

The 5th International Congress on Design and Modeling of Mechanical Systems (CMSM) was held in Djerba, Tunisia on March 25-27, 2013 and followed four previous successful editions, which brought together international experts in the fields of design and modeling of mechanical systems, thus contributing to the exchange of information and skills and leading to a considerable progress in research among the participating teams. The fifth edition of the congress (CMSM ́2013), organized by the Unit of Mechanics, Modeling and Manufacturing (U2MP) of the National School of Engineers of Sfax, Tunisia, the Mechanical Engineering Laboratory (MBL) of the National School of Engineers of Monastir, Tunisia and the Mechanics Laboratory of Sousse (LMS) of the National School of Engineers of Sousse, Tunisia, saw a significant increase of the international participation. This edition brought together nearly 300 attendees who exposed their work on the following topics: mechatronics and robotics, dynamics of mechanical systems, fluid structure interaction and vibroacoustics, modeling and analysis of materials and structures, design and manufacturing of mechanical systems. This book is the proceedings of CMSM ́2013 and contains a careful selection of high quality contributions, which were exposed during various sessions of the congress. The original articles presented here provide an overview of recent research advancements accomplished in the field mechanical engineering.

Thermal and Thermo-mechanical Analysis of High-speed Friction Stir Welding

Thermal and Thermo-mechanical Analysis of High-speed Friction Stir Welding
A Book

by Harsha Raikoty,George Talia

  • Publisher : Unknown Publisher
  • Release : 2005
  • Pages : 134
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
GET BOOK

[Author's abstract] Friction Stir Welding (FSW) is a solid state joining technology in which butted plates are heated, plasticized, and joined together by the application of frictional heat generated between the tool shoulder and the top surface of the workpiece. In this thesis a three dimensional Finite Element Analysis (FEA) of High Speed Friction Stir Welding (HS FSW) is presented to calculate the temperature and residual stress distribution of the workpiece The analysis adopted a thermal model to predict the temperature distribution within the workpiece and a thermo mechanical analysis to determine the residual stress. The thermal model with a moving heat source was used to find the temperature distribution. During the process, results from the thermal model are applied to the mechanical model to find the residual stresses of the workpiece A butt welded A1 6061T6 was used and temperature results were validated experimentally with an infrared camera and thermocouple measurements. By comparing actual welds performed on Aluminum 6061 T6 and with the FE predictions, it was observed that the appropriate range for the (maximum) temperature for a sound weld is between 570° C and 530° C, and that these temperatures were achieved between spindle translation velocities of 125 mm/min and 250 mm/min, respectively. Tool rotational speed was kept constant at 15,000 rpm for all FEA simulations and experiments.

Light Metals—Advances in Research and Application: 2012 Edition

Light Metals—Advances in Research and Application: 2012 Edition
A Book

by Anonim

  • Publisher : ScholarlyEditions
  • Release : 2012-12-26
  • Pages : 1911
  • ISBN : 1464990662
  • Language : En, Es, Fr & De
GET BOOK

Light Metals—Advances in Research and Application: 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Light Metals. The editors have built Light Metals—Advances in Research and Application: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Light Metals in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Light Metals—Advances in Research and Application: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Advances in Marine Structures

Advances in Marine Structures
A Book

by Carlos Guedes Soares,Wolfgang Fricke

  • Publisher : CRC Press
  • Release : 2011-03-14
  • Pages : 732
  • ISBN : 0203808118
  • Language : En, Es, Fr & De
GET BOOK

In recent years significant advances have been made in the development of methods and modeling procedures for structural assessment of marine structures. Various assessment methods are incorporated in the methods used to analyze and design efficient ship structures, as well as in the methods of structural reliability to be used to ensure the safety