Welded design is often considered as an area in which there's lots of practice but little theory. Welded design tends to be overlooked in engineering courses and many engineering students and engineers find materials and metallurgy complicated subjects. Engineering decisions at the design stage need to take account of the properties of a material - if these decisions are wrong failures and even catastrophes can result. Many engineering catastrophes have their origins in the use of irrelevant or invalid methods of analysis, incomplete information or the lack of understanding of material behaviour. The activity of engineering design calls on the knowledge of a variety of engineering disciplines. With his wide engineering background and accumulated knowledge, John Hicks is able to show how a skilled engineer may use materials in an effective and economic way and make decisions on the need for the positioning of joints, be they permanent or temporary, between similar and dissimilar materials. This book provides practising engineers, teachers and students with the necessary background to welding processes and methods of design employed in welded fabrication. It explains how design practices are derived from experimental and theoretical studies to produce practical and economic fabrication.
Describes the weldability aspects of structural materials used in a wide variety of engineering structures, including steels, stainless steels, Ni-base alloys, and Al-base alloys Welding Metallurgy and Weldability describes weld failure mechanisms associated with either fabrication or service, and failure mechanisms related to microstructure of the weldment. Weldability issues are divided into fabrication and service related failures; early chapters address hot cracking, warm (solid-state) cracking, and cold cracking that occur during initial fabrication, or repair. Guidance on failure analysis is also provided, along with examples of SEM fractography that will aid in determining failure mechanisms. Welding Metallurgy and Weldability examines a number of weldability testing techniques that can be used to quantify susceptibility to various forms of weld cracking. Describes the mechanisms of weldability along with methods to improve weldability Includes an introduction to weldability testing and techniques, including strain-to-fracture and Varestraint tests Chapters are illustrated with practical examples based on 30 plus years of experience in the field Illustrating the weldability aspects of structural materials used in a wide variety of engineering structures, Welding Metallurgy and Weldability provides engineers and students with the information needed to understand the basic concepts of welding metallurgy and to interpret the failures in welded components.
Based on the European Welding Engineer (EWF) syllabus Part 3 - Construction and Design - this book provides a clear, highly illustrated and concise explanation of how welded joints and structures are designed and of the constraints which welding may impose on the design. Written for both students and practicing engineers in welding and design, the book will also be of value to civil, structural, mechanical and plant engineers.
Computational Welding Mechanics (CWM) provides readers with a complete introduction to the principles and applications of computational welding including coverage of the methods engineers and designers are using in computational welding mechanics to predict distortion and residual stress in welded structures, thereby creating safer, more reliable and lower cost structures. Drawing upon years of practical experience and the study of computational welding mechanics the authors instruct the reader how to: - understand and interpret computer simulation and virtual welding techniques including an in depth analysis of heat flow during welding, microstructure evolution and distortion analysis and fracture of welded structures, - relate CWM to the processes of design, build, inspect, regulate, operate and maintain welded structures, - apply computational welding mechanics to industries such as ship building, natural gas and automobile manufacturing. Ideally suited for practicing engineers and engineering students, Computational Welding Mechanics is a must-have book for understanding welded structures and recent technological advances in welding, and it provides a unified summary of recent research results contributed by other researchers.
This authoritative reference thoroughly covers every aspect of thermal welding and associated cutting processes. It is essential reading for welding and production engineers, and students, as well as anyone associated with the selection and application of equipment and consumables.
An authoritative source of reference on every aspect of thermal welding and associated cutting processes. Each process is examined clearly and comprehensively from first principles through to more complex technical descriptions suited to those who need more technical information. Copiously illustrated throughout and with an extensive glossary of terms, this book is essential reading for welding and production engineers, metallurgists, designers, quality control engineers, distributors, students and all who are associated with the selection and application of equipment and consumables. (reprinted with corrections 2001)
The most up-to-date coverage of welding metallurgy aspects and weldability issues associated with Ni-base alloys Welding Metallurgy and Weldability of Nickel-Base Alloys describes the fundamental metallurgical principles that control the microstructure and properties of welded Ni-base alloys. It serves as a practical how-to guide that enables engineers to select the proper alloys, filler metals, heat treatments, and welding conditions to ensure that failures are avoided during fabrication and service. Chapter coverage includes: Alloying additions, phase diagrams, and phase stability Solid-solution strengthened Ni-base alloys Precipitation strengthened Ni-base alloys Oxide dispersion strengthened alloys and nickel aluminides Repair welding of Ni-base alloys Dissimilar welding Weldability testing High-chromium alloys used in nuclear power applications With its excellent balance between the fundamentals and practical problem solving, the book serves as an ideal reference for scientists, engineers, and technicians, as well as a textbook for undergraduate and graduate courses in welding metallurgy.
Fifteen papers from a symposium held in Sparks, Nev., April 1988. They cover: low and high cycle fatigue, fatigue crack growth, corrosion fatigue, fracture toughness testing, and wide-plate testing. Annotation copyright Book News, Inc. Portland, Or.
The festive Elizabethan comedies constitute a unique and dazzling drama, yet they have seldom been studied as a genre, and, except for Shakespeare's plays, they are seldom interpreted. Although successive audiences have found these works delightful, critics at times regard them as rather trivial. Professor Weld's book, which is based upon a challenging new view of sixteenth-century dramaturgy, results in a new understanding of the plays, and reveals in them a surprising profundity. These interludes and moralities are seen, not as crude transitional dramas of simplistic didacticism and confused technique, but as theatrically vital plays which are both technically sophisticated and semantically complex. The author defines the dramatic meaning he seeks as the Renaissance audience's understanding of the play, and offers an operational definition of that audience in terms of its knowledge and training. He explores the late medieval use of dramatic metaphor as a device for conveying meaning and shows how during the sixteenth century this device gave rise to a complex linguistic tradition, one from which the late Elizabethan and Jacobean genres developed. Not the least of these genres is "romantic comedy," a concept that Professor Weld expands considerably. Using common ideas of the time as conceptual tools for interpretation, he demonstrates a generic grouping which includes plays as superficially diverse as Lyly's Mother Bombie, Greene's Friar Bacon, and The Taming of the Shrew. They are linked by certain dramatic metaphors, by philosophical assumptions, and by their common concern to find a modus vivendi with the "absurd flesh." Our understanding of these romantic comedies has been blurred by the accumulated scholarly traditions and changing acting styles of the last 350 years. In order to discover a clear view of this dramatic form as it was understood by the Elizabethan audience, Professor Weld (who himself has had acting and directing experience) takes factors into account such as the playwrights' actual directions for performance (when such can be found), in order to study the communication of meaning from the Elizabethan playwright to his contemporary and varied audience. While to us, for instance, Hamlet might exemplify the Oedipus Complex and The Comedy of Errors a search for identity and the failure of communication, such "meanings" are by no means those assumed by the intelligent and educated Elizabethan playgoer. In Part I Professor Weld examines the dramatic traditions with which the audiences of Lyly, Greene, and Shakespeare had been familiar, while in Part II he interprets the comedies themselves. Since all of the dramatic kinds used much the same techniques and were concerned with many of the same themes, the book is also an introduction to the understanding of tragedy, history, and—especially—dramatic satire.
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