Fundamentals And Details Of Laser Welding

This highly illustrated book presents the essential information and major constituents of laser welding, including laser brazing and laser-arc hybrid welding. Students, engineers, researchers, scientists, specialists, professors, consultants, designers, and executives worldwide will fully grasp the fundamentals, the present state, and the applications of laser welding. Welding phenomena, formation mechanisms and preventive procedures of welding defects, and process monitoring and adaptive control are especially emphasized, because understanding these aspects of laser welding greatly improves the performance of work and research and solves many problems in the field. Finally, the book shows how increasingly widespread use of a variety of materials is bringing major advances to laser welding.

Laser welding is a rapidly developing and versatile technology which has found increasing applications in industry and manufacturing. It allows the precision welding of small and hard-to-reach areas, and is particularly suitable for operation under computer or robotic control. The Handbook of laser welding technologies reviews the latest developments in the field and how they can be used across a variety of applications. Part one provides an introduction to the fundamentals of laser welding before moving on to explore developments in established technologies including CO2 laser welding, disk laser welding and laser micro welding technology. Part two highlights laser welding technologies for various materials including aluminium and titanium alloys, plastics and glass. Part three focuses on developments in emerging laser welding technologies with chapters on the applications of robotics in laser welding and developments in the modelling and simulation of laser and hybrid laser welding. Finally, part four explores the applications of laser welding in the automotive, railway and shipbuilding industries. The Handbook of laser welding technologies is a technical resource for researchers and engineers using laser welding technologies, professionals requiring an understanding of laser welding techniques and academics interested in the field. Provides an introduction to the fundamentals of laser welding including characteristics, welding defects and evolution of laser welding Discusses developments in a number of techniques including disk, conduction and laser micro welding Focusses on technologies for particular materials such as light metal alloys, plastics and glass

This is the first detailed description in English of radiation and polymeric material interaction and the influences of thermal and optical material properties. As such, it provides comprehensive information on material and process characteristics as well as applications regarding plastic laser welding. The first part of this practical book introduces the structure and physical properties of plastics, before discussing the interaction of material and radiation in the NIR and IR spectral range. This is followed by an overview of the physical foundations of laser radiation and laser sources used for plastic welding. The third part describes the main processes of laser welding thermoplastics, as well as possibilities of process control, design of joint geometry, material compatibilities and adaptation of absorption of plastics to NIR radiation. Finally, the author explains applications of laser welding plastics using several industrial case studies from the automotive industry, household goods, and medical devices. Tailored to the needs of everyone dealing with laser welding of plastics, especially engineers in packaging, component manufacturing, and the medical industry.

Enables the reader both to understand and to use, in a practical manner, laser welding. The author explains the principles of laser welding and provides examples of industrial applications, examines many aspects of laser welding and devotes a complete chapter to safety.

The chapters present the problems of stresses and strains induced in metals and nonmetals in the processes of laser heating, analyze the results, offer the ways of laser treatment that dispense with subsequent machining operations, and describe the basic approaches to increase the strength of materials during laser heating. Other topics include the practical methods of implementing the processes of laser welding, cutting, hardening, alloying, and cladding (hardfacing). Basics of Laser Material Processing is designed for scientific workers and for those students in senior- and graduate-level courses.

This book is a collection of the most recent contributions in the area of Laser Welding Technique, from both fundamental and applied perspectives. It brings a total of thirteen chapters, covering different aspects of the laser welding field. From laser welding equipment to numerical modelling and simulation, digital twins, and artificial intelligence, the final work provides a comprehensive and accessible review of the state-of-the-art, also including metallurgy and quality assessment aspects in welded structures. Covering a wide span of themes within the laser welding research area, from the material science to the final products (including their performance on structural applications), passing by the fundamental aspects of mathematical and engineering characterization, product specification, limitations and possibilities of different laser welding technique, the book can be a useful source of information for decision-making by experienced engineers, as well as a reference work for students seeking for beginning his/her research activities in the field. Given the rapid and constantly evolving technology aspects in such a transversal (and integrative) area of research, the present book is definitely an added value for the future in the domain of Laser Welding Techniques

This book describes all the metallurgical phenomena involved in the different welding processes. Practical examples of a wide variety of metals and alloys are provided, as well as an expert commentary on steel weldability and types of cracking.

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.