welding and joining of advanced high strength steels ahss

Welding And Joining Of Advanced High Strength Steels  AHSS
Author: Mahadev Shome
Publisher: Elsevier
Release Date: 2015-02-25
Pages: 204
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Welding and Joining of Advanced High Strength Steels (AHSS): The Automotive Industry discusses the ways advanced high strength steels (AHSS) are key to weight reduction in sectors such as automotive engineering. It includes a discussion on how welding can alter the microstructure in the heat affected zone, producing either excessive hardening or softening, and how these local changes create potential weaknesses that can lead to failure. This text reviews the range of welding and other joining technologies for AHSS and how they can be best used to maximize the potential of AHSS. Reviews the properties and manufacturing techniques of advanced high strength steels (AHSS) Examines welding processes, performance, and fatigue in AHSS Focuses on AHSS welding and joining within the automotive industry

Advanced High Strength Steels Application Guidelines V5
Author: Dr. Stuart Keeler, Sc.D.
Publisher: WorldAutoSteel
Release Date: 2015-04-28
Pages: 250
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

These guidelines are the leading AHSS information resource for engineers and press shop personnel. Previous versions covered metallurgy, forming, and joining. Version 5.0 also reflects new content highlighting the broader materials portfolio, advanced fabrication technologies, and optimized joining processes. Applications of the latest steels by automotive OEM and supplier plants will proliferate during the next 10 years due to mass reduction, improved safety requirements, mandated gas mileages and customer demands. Currently vehicle applications have not nearly exhausted the breadth of AHSS grades available that can achieve lightweighting targets at less cost and five to 20 times less production emissions than alternative low density materials. This rapid increase in demand requires users of AHSS to quickly accumulate both basic understanding and application knowledge. AHSS Guidelines Version 5.0 gathers that knowledge and experience in two volumes. Volume I includes metallurgy, forming and joining. Following the series of UltraLight programs* a decade ago, which influenced the growth of High-Strength Steels (HSS) and AHSS vehicle applications around the globe, WorldAutoSteel formed a special working group of expert members from major steel companies globally to create the first AHSS Guidelines. The publication explains how and why AHSS steels are different from traditional higher strength steels in terms of formability capabilities, fabrication, and joining. Over the last decade the size of each revised document increased as more knowledge was accumulated. The last document (Version 4.1) was published in June 2009. During the last five years, additional research and press shop experiences have resulted in even greater understanding of these unique steels. AHSS Guidelines Version 5.0 was created to capture this additional knowledge, as well as lessons learned from the FutureSteelVehicle (FSV) program. This update doubles the size of the previous volume, with a vast amount of new hands-on experience from the design and manufacturing of AHSS vehicle applications. Technical editors for AHSS Guidelines Version 5 are Stuart Keeler, Sc.D. Mechanical Metallurgy, who has served in this role since the first publication, and Menachem Kimchi, M.Sc. Welding Engineering, who contributed a wealth of joining information to Version 5.0.

Trends In Welding Research 2012  Proceedings Of The 9th International Conference
Author: Tarasankar DebRoy, Stan A. David, John N. DuPont, Toshihiko Koseki, Harry K. Bhadeshia
Publisher: ASM International
Release Date: 2013-03-01
Pages: 1116
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

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.

Advanced Joining Processes
Author: Lucas F. M. da Silva
Publisher: Elsevier
Release Date: 2020-10-31
Pages: 400
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Advanced Joining Processes: Welding, Plastic Deformation, and Adhesion brings together a range of advanced thermal, mechanical, and chemical methods of joining, offering an up-to-date resource for those looking to understand and utilize the very latest techniques. Efficient joining techniques are critical to a range of innovative applications, with technology in constant development. The first section of the book provides in-depth information on advanced welding techniques, including friction stir, explosive, ultrasonic, laser, electron beam, and computational weld analysis and fatigue of structures. The second section highlights key developments in joining by plastic deformation, adhesive bonding, and hybrid joining. The coverage of each technique is supported by practical guidance, detailed analysis, and finite element simulations. This is an essential reference for researchers and advanced students in joining, welding, adhesion, materials processing, mechanical engineering, plastics engineering, manufacturing, civil engineering, and automotive/aerospace engineering, as well as engineers, scientists, and R&D professionals, using joining, welding, and adhesion methods, across a range of industries. Presents the latest research findings and developments across welding, joining by plastic deformation, and adhesion Includes state-of-the-art methods, such as laser, ultrasonic and electron beam welding, hybrid joining, and the use of electromagnetic pulses Offers practical guidance, detailed analysis, and finite element simulations, for all techniques covered

Metallography XVI
Author: Margita Longauerová
Publisher: Trans Tech Publications Ltd
Release Date: 2017-03-22
Pages: 646
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

?he thematic scope of 16th International Symposium on Metallography and Materials Science (20 – 22 April 2016, Stará Lesná, Slovak Republic) - modern metallographic methods and techniques in scientific and engineering researches of properties and of the technological features of the advanced structure materials used in the different areas of modern industry. We hope this collection of papers will be useful for wide range of readers whose activity is related with materials science and with materials processing technologies.

Advanced High Strength Steels
Author: Mahmoud Y. Demeri
Publisher: ASM International
Release Date: 2013-08-01
Pages: 312
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Examines the types, microstructures and attributes of AHSSAlso reviews the current and future applications, the benefits, trends and environmental and sustainability issues.

Hybrid Adhesive Joints
Author: Lucas F. M. da Silva
Publisher: Springer Science & Business Media
Release Date: 2011-06-27
Pages: 309
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This volume presents treat the material science and mechanical issues of hybrid adhesive bonds which are a combination of adhesive bonding rather than mechanical fasteners. The idea of hybrid joints is to gather the advantages of the different techniques leaving out their problems. Some of the advantages of these joints are a higher static and fatigue strength and a higher stiffness with respect to simple joints, a two-stage cracking process before the final failure and improved durability. The book treats all important kinds of joints which are in use today: weld – adhesive, rivet – adhesive, clinch – adhesive, bolt – adhesive, and adhesive – adhesive. A section dedicated to threadlocking and interference-fit adhesive joints is also included. All sections are treated from a scientific point of view with modeling issues supported by simple coupons testing and a technological point of view where the idea is to present more applied results with practical cases.

Proceedings Of The 1st International Joint Symposium On Joining And Welding
Author: H. Fujii
Publisher: Woodhead Publishing
Release Date: 2014-08-27
Pages: 350
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This book contains the papers from the Proceedings of the 1st international joint symposium on joining and welding held at Osaka University, Japan, 6-8 November 2013. The use of frictional heating to process and join materials has been used for many decades. Rotary and linear friction welding are vital techniques for many industrial sectors. More recently the development of friction stir welding (FSW) has significantly extended the application of friction processing. This conference is the first event organized by the three major institutes for joining and welding to focus on the broad range of friction processes. This symposium will provide the latest valuable information from academic and industrial experts from around the world on FSW, FSP, linear and rotary friction welding.

Welding Journal
Author:
Publisher:
Release Date: 2009
Pages:
ISBN:
Available Language: English, Spanish, And French
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Resistance And Ultrasonic Spot Welding Of Light Weight Metals
Author: Ying Lu (Ph. D. in welding engineering)
Publisher:
Release Date: 2018
Pages:
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Multi-materials vehicle structures, employing light-weight metals such as advanced high strength steels (AHSS), aluminum alloys, can satisfy the ever-increasing requirement of light-weighting and fuel efficiency, as well as maintaining or improving the crash resistance of vehicles. The present research provides a fundamental understanding of the process-microstructure-mechanical properties of resistance and ultrasonic spot welding of light-weight metals. The dissertation consists of three main parts: (1) study of the relationship of process-microstructure-mechanical properties for resistance spot welded two sheets (2T) and complex stack-ups of ultra-high strength grade of AHSS, (2) development of a novel technique, namely Ultrasonic Plus Resistance Spot Welding, for dissimilar metal joining of Al to steel, and (3) investigation of the bonding mechanism of USW of Al by in-situ relative vibration measurement. In the first part, softening in subcritical heat affected zone of resistance spot welded hot-stamped boron steels is investigated by weld microstructure characterization and tempering kinetics of martensite. The local constitutive behavior of the potential failure locations is extracted and incorporated into performance model to investigate its effect on the accuracy of deformation and failure prediction. A major challenge for RSW of complex stack-ups with large thickness ratio is the limited nugget penetration into the thin sheet at the outside of the stack-up. The effect of welding current, electrode force, electrode material/size on nugget formation and the possible ways to improve nugget penetration into the thin sheet are investigated for 3T and 4T stack-ups of AHSS. The second part of the dissertation is focused on the development of a new dissimilar metal joining method, namely ultrasonic plus resistance spot welding (abbreviated as U+RSW) for Al/Steel. The bonding mechanisms have been investigated through numerical simulation to validate the concept. The third and last part of the dissertation is to understand the bonding mechanism in USW. Particularly, the relative motion of the sonotrode, aluminum specimens, and anvil in USW is investigated using an in-situ velocity measurement technique, Photonic Doppler Velocimetry (PDV). The relative motion analysis is correlated to destructive testing results, including lap-shear tensile testing and weld microstructure characterization, to understand and quantify bond formation during USW. In summary, the present research studies the process-microstructure-property relationships of resistance spot welding of AHSS, dissimilar metal welding of Al to steel, and ultrasonic spot welding of Al. An improved fundamental understanding is developed for (1) heat conduction, electric current flow, mechanical stress and deformation, and nugget formation in 2T and complex stack-ups of resistance spot welded ultra-high strength steel, (2) tempering kinetics of martensite and SCHAZ softening, (3) microstructure-specific constitutive behaviors, (4) weldability, intermetallics, and strength of dissimilar metal joint between Al and steel in U+RSW, and (5) bonding mechanism in USW. Such new knowledge is essential to ensure sound multi-materials vehicle structures employing various light-weight metals to satisfy the ever-increasing demand for fuel efficiency and crash resistance.

Materials Transactions  JIM
Author:
Publisher:
Release Date: 2008
Pages:
ISBN:
Available Language: English, Spanish, And French
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Magnesium Technologies
Author:
Publisher:
Release Date: 2005
Pages: 171
ISBN:
Available Language: English, Spanish, And French
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Automotive Engineering International
Author:
Publisher:
Release Date: 2006
Pages:
ISBN:
Available Language: English, Spanish, And French
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THERMEC 2013
Author: B. Mishra
Publisher: Trans Tech Publications Ltd
Release Date: 2014-05-23
Pages: 2938
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Collection of selected, peer reviewed papers from THERMEC 2013, 8th International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS Processing, Fabrication, Properties, Applications, December 2-6, 2013, Las Vegas, USA. The 470 papers are grouped as follows: Chapter 1: Al Alloys, Chapter 2: Mg Alloys (Prof Karl U. Kainer Symposium), Chapter 3: Ti Alloys/ Aerospace Structural Metallic Materials, Chapter 4: Steels, Chapter 5: TMP Microalloyed Steels (Prof. A. J. DeArdo Symposium), Chapter 6: High & Ultra High Temperature Materials, Chapter 7: Bio Materials, Chapter 8: Advanced Protective Coatings/Surface Engineering, Chapter 9: Composites (MMC, CMC)/ Nanocomposites/ Synthetic & Foams), Chapter 10: Interfaces & Grain Boundaries, Chapter 11: Fuel Cells, Hydrogen Storage Technologies, Batteries, Supercapacitors & Thermoelectric Materials, Chapter 12: Friction Stir Processing/Welding, Chapter 13: Materials Under Extreme Conditions, Chapter 14: Metallic Glasses/ Bulk Metallic Amorphous Materials, Chapter 15: Nanomaterials for Structural & Energy Applications, Chapter 16: Neutron Scattering & X-Ray Studies of Advanced Materials, Chapter 17: Modelling & Simulation, Chapter 18: Materials Performance, Chapter 19: Smart/Intelligent Materials & Processes, Chapter 20: Texture of Materials (Prof. G. Gottstein Symposium), Chapter 21: Ultra-Fine – Grained Materials (Prof. T. G. Langdon Symposium), Chapter 22: Welding & Joining of Advanced and Special Materials

SME Technical Paper
Author: Society of Manufacturing Engineers
Publisher:
Release Date: 2005
Pages:
ISBN:
Available Language: English, Spanish, And French
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Development Of Mechanism Based Models For Resistance Spot Weld Failure Simulation Of Multi Material Advanced High Strength Steel Sheets
Author: Daniel Dorribo Dorribo
Publisher:
Release Date: 2018
Pages: 160
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

The automotive industry is constantly involved in the development of new projects aimed at reducing weight, fuel consumptions and costs while improving passengers¿ safety. In order to achieve these increasing demands, Advanced High Strength Steels (AHSS) have been introduced in recent years reducing vehicle structure weights and improving the crashworthiness. With the increase in the bearing capacity of crash-relevant structural components, the sheet metal joining techniques such as adhesive bonding and resistance spot welding (RSW) become critical. In order to develop the vehicle structure in these new projects, full-vehicle crash finite element simulations are usually performed. Simplified beam-like models are currently used in these simulations (with thousands of spot welds) to represent RSW joints response. The maximum bearing force of these models are fitted using large experimental campaigns, considering all the main factors that have the highest influence on the fracture response of a welded joint. The objective of this thesis is twofold: (1) to develop a model that is able to partially replace the extensive experimental campaign in providing parameters for the crash simulation simplified spot weld models, and (2) to gain understanding of spot weld joints failure response in order to improve the current simplified models. To achieve these objectives, a detailed spot weld model for the prediction of spot weld failure in joints in AHSS sheets is presented. The presented model includes a definition of the local material properties as well as the geometry features of a spot weld. In addition, an industrially suited fracture criterion, i.e. robust and without a long-term calibration, is used for the prediction of maximum force. An energetic fracture criterion based on the use of elastic-plastic fracture-mechanics is identified as the better suited for the prediction of spot weld failure and joint bearing capacity. The J-integral is evaluated in the weld notch and this value is compared with a material parameter, the fracture toughness, in order to obtain the joint maximum force. The presented detailed FE spot weld model is validated to joints of two different steel grades of the AHSS family usually present in the current vehicle structure, a hot formed martensitic boron-alloyed steel (22MnB5) and a cold formed dual phase steel (DP 980). The validation is performed comparing the results obtained with the finite element model and the experimental results extracted from an extensive loading test experimental campaign where the main factors that have an influence in the spot weld fracture response are considered. The obtained simulated critical forces of the loading tests present good agreement with the experimental ones in all tested configurations. Finally, based on the presented finite element spot weld model, some recommendations are exposed for extending the model for new combinations and loading conditions. The proposed procedure can be used to reduce the long-term characterization campaigns used to calibrate the joints of a new AHSS grade, where fracture is triggered by stress concentration ahead of a notch. Furthermore, some recommendations for the future structure design are given taking into account the information obtained with the present model.

THERMEC 2018
Author: R. Shabadi
Publisher: Trans Tech Publications Ltd
Release Date: 2018-12-26
Pages: 2604
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This book presents the proceedings of the THERMEC’2018: 10th International Conference on Processing and Manufacturing of Advanced Materials, which took place between July 09 and July 13, 2018 in Paris, France, under the co-sponsorship of Universite de Lille, MINES ParisTech, PSL and Universite de Tours, France. The presented book will be useful for many researchers and engineers/technologists working in different aspects of processing and fabrication of materials, structure/property evaluation and applications of both ferrous and nonferrous materials including biomaterials, smart materials as well as the advanced measurement techniques in the materials science.

Manufacturing Process Technology
Author: Zheng Yi Jiang
Publisher: Trans Tech Publications Ltd
Release Date: 2011-02-21
Pages: 4482
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

This special volume aims to bring together the latest advances in, and applications of, surface engineering/coatings, modeling, analysis and simulation, materials forming, materials machining, welding and joining, laser-processing technology, casting and solidification, precision manufacturing technology and measurements, etc. It will not only furnish readers with a broad overview of the latest advances, but also provide a valuable summary and reference work for researchers in this field.

Annual Index Abstracts Of SAE Technical Papers  2007
Author: Society of Automotive Engineers
Publisher:
Release Date: 2008-08
Pages:
ISBN:
Available Language: English, Spanish, And French
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Light Metals Technology 2009
Author: Matthew S. Dargusch
Publisher: Trans Tech Publications Ltd
Release Date: 2009-04-17
Pages: 670
ISBN:
Available Language: English, Spanish, And French
EBOOK SYNOPSIS:

Volume is indexed by Thomson Reuters CPCI-S (WoS). The aim of this special collection was to provide an opportunity for companies, academic institutions and government research agencies to share, in a collaborative manner, their new research and development work.The main focus was light metals and their applications. It is to be noted that there was a significant number of papers related to titanium research: due to the extended range of applications of titanium components and the growth in end-user demands for affordable manufacturing. As a result, the collection is truly representative of the three light metals: aluminium, magnesium and titanium; with a similar number of papers concerning each metal.