Weld Pool Dynamics in Deep Penetration Laser Welding

Weld Pool Dynamics in Deep Penetration Laser Welding

Author: Shuili Gong

Publisher: Springer Nature

Published: 2021-04-21

Total Pages: 290

ISBN-13: 9811607885

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This book systematically describes the weld pool behavior in laser welding and its influencing factors from the perspectives of testing technology, theoretical calculation and process simulation technology, physical state transformation behavior of weld pools, and the impact of technical conditions on the weld pool behavior. The book covers extensive research achievements made in China in this field, some of which represent the latest cutting-edging researches conducted by the authors' research team. These latest research efforts mainly relate to the weld pool behavior of dual-beam laser welding, laser welding with filler wires, full-penetration laser welding of very-thick parts, and laser welding in vacuum and low vacuum conditions. The book is intended for undergraduate, graduate students and researchers who are interested in laser welding.


Thermohydrodynamic Models of Laser Irradiation of Metals

Thermohydrodynamic Models of Laser Irradiation of Metals

Author: R. V. Arutyunian

Publisher: CRC Press

Published: 1990

Total Pages: 184

ISBN-13: 9783718650712

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Thermohydrodynamic models of laser irradiation of metals examines models of continuous- and recurrent-pulse irradiation under conditions of dimensional and thermochemical treatment. Hydrodynamic mechanisms of melt displacement under conditions of dimensional and thermochemical treatment. Hydrodynamic mechanisms of melt displacement under conditions of laser drilling are discussed and the space-time structure of temperature in metal under the effect of a moving recurrent-pulse heat source is studied analytically and numerically. A thermo-hydrodynamic model of the welding process is analyzed and the two-dimensional problem of the heating of metal and melt motion under vapour pressure and surface tension is modelled numerically. Convective stirring of an admixture under the effect of pulsed laser radiation is considered and numerically investigated.


The Industrial Laser Handbook

The Industrial Laser Handbook

Author: David Belforte

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 321

ISBN-13: 1461228824

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Manufacturing with lasers is becoming increasingly important in modern industry. This is a unique, most comprehensive handbook of laser applications to all modern branches of industry. It includes, along with the theoretical background, updates of the most recent research results, practical issues and even the most complete company and product directory and supplier's list of industrial laser and system manufacturers. Such important applications of lasers in manufacturing as welding, cutting, drilling, heat treating, surface treatment, marking, engraving, etc. are addressed in detail, from the practical point of view. A list of specific companies dealing with manufacturing aspects with lasers is given.


Principles of Welding

Principles of Welding

Author: Robert W. Messler, Jr.

Publisher: John Wiley & Sons

Published: 2008-09-26

Total Pages: 685

ISBN-13: 3527617493

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An advanced yet accessible treatment of the welding process and its underlying science. Despite the critically important role welding plays in nearly every type of human endeavor, most books on this process either focus on basic technical issues and leave the science out, or vice versa. In Principles of Welding, industry expert and prolific technical speaker Robert W. Messler, Jr. takes an integrated approach--presenting a comprehensive, self-contained treatment of the welding process along with the underlying physics, chemistry, and metallurgy of weld formation. Promising to become the standard text and reference in the field, this book provides an unprecedented broad coverage of the underlying physics and the mechanics of solidification--including peritectic and eutectic reactions--and emphasizes material continuity and bonding as a way to create a joint between materials of the same general class. The author supplements the book with hundreds of tables and illustrations, and correlates the science to welding practices in the real world. Principles of Welding departs from existing books with its clear, unambiguous presentation, which is easily grasped even by undergraduate students, yet given at the advanced level required by experienced engineers.


Laser Welding

Laser Welding

Author: João Pedro Oliveira

Publisher: MDPI

Published: 2020-05-13

Total Pages: 260

ISBN-13: 303928861X

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Laser welding is a high-energy process used in a wide range of advanced materials to obtain micro- to macro-sized joints in both similar and dissimilar combinations. Moreover, this technique is widely used in several industries, such as automotive, aerospace, and medical industries, as well as in electrical devices. Although laser welding has been used for several decades, significant and exciting innovations often arise from both the process and/or advanced materials side.


Laser-Assisted Fabrication of Materials

Laser-Assisted Fabrication of Materials

Author: Jyotsna Dutta Majumdar

Publisher: Springer Science & Business Media

Published: 2012-11-03

Total Pages: 513

ISBN-13: 3642283594

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Laser assisted fabrication involves shaping of materials using laser as a source of heat. It can be achieved by removal of materials (laser assisted cutting, drilling, etc.), deformation (bending, extrusion), joining (welding, soldering) and addition of materials (surface cladding or direct laser cladding). This book on ́Laser assisted Fabrication’ is aimed at developing in-depth engineering concepts on various laser assisted macro and micro-fabrication techniques with the focus on application and a review of the engineering background of different micro/macro-fabrication techniques, thermal history of the treated zone and microstructural development and evolution of properties of the treated zone.


Computational Welding Mechanics

Computational Welding Mechanics

Author: John A. Goldak

Publisher: Springer Science & Business Media

Published: 2006-07-04

Total Pages: 326

ISBN-13: 0387232885

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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.


Handbook of Research on Advancements in the Processing, Characterization, and Application of Lightweight Materials

Handbook of Research on Advancements in the Processing, Characterization, and Application of Lightweight Materials

Author: Kumar, Kaushik

Publisher: IGI Global

Published: 2021-11-19

Total Pages: 458

ISBN-13: 179987866X

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In the automotive industry, the need to reduce vehicle weight has given rise to extensive research efforts to develop aluminum and magnesium alloys for structural car body parts. In aerospace, the move toward composite airframe structures urged an increased use of formable titanium alloys. In steel research, there are ongoing efforts to design novel damage-controlled forming processes for a new generation of efficient and reliable lightweight steel components. All these materials, and more, constitute today’s research mission for lightweight structures. They provide a fertile materials science research field aiming to achieve a better understanding of the interplay between industrial processing, microstructure development, and the resulting material properties. The Handbook of Research on Advancements in the Processing, Characterization, and Application of Lightweight Materials provides the recent advancements in the lightweight mat materials processing, manufacturing, and characterization. This book identifies the need for modern tools and techniques for designing lightweight materials and addresses multidisciplinary approaches for applying their use. Covering topics such as numerical optimization, fatigue characterization, and process evaluation, this text is an essential resource for materials engineers, manufacturers, practitioners, engineers, academicians, chief research officers, researchers, students, and vice presidents of research in government, industry, and academia.