Dissimilar Metal Joining

The combination of distinct materials is a key issue in modern industry, whereas the driving concept is to design parts with the right material in the right place. In this framework, a great deal of attention is directed towards dissimilar welding and joining technologies. In the automotive sector, for instance, the concept of “tailored blanks”, introduced in the last decade, has further highlighted the necessity to weld dissimilar materials. As far as the aeronautic field is concerned, most structures are built combining very different materials and alloys, in order to match lightweight and structural performance requirements. In this framework, the application of fusion welding techniques, namely, tungsten inert gas or laser welding, is quite challenging due to the difference in physical properties, in particular the melting point, between adjoining materials. On the other hand, solid-state welding methods, such as the friction stir welding as well as linear friction welding processes, have already proved to be capable of manufacturing sound Al-Cu, Al-Ti, Al-SS, and Al-Mg joints, to cite but a few. Recently, promising results have also been obtained using hybrid methods. Considering the novelty of the topic, many relevant issues are still open, and many research groups are continuously publishing valuable results. The aim of this book is to finalize the latest contributions on this topic.

This volume discusses dissimilar metal joining by fusion and solid-state processes. It is a complex process due to differences in chemical compositions, physical properties, mechanical properties, and thermal properties of the parent metals to be joined. The contents focus on issues related to fusion and solid-state welding of dissimilar metals. The book is based on the fundamental and experimental investigation on methodologies used to overcome issues related to dissimilar metal joining by fusion welding (GTAW and its variant), resistance spot welding and solid state joining (friction stir welding, friction stir spot welding, and diffusion bonding) largely based on research investigation conducted at Indian Institute of Technology (IIT) Roorkee.

Joining Processes for Dissimilar and Advanced Materials describes how to overcome the many challenges involved in the joining of similar and dissimilar materials resulting from factors including different thermal coefficients and melting points. Traditional joining processes are ineffective with many newly developed materials. The ever-increasing industrial demands for production efficiency and high-performance materials are also pushing this technology forward. The resulting emergence of advanced micro- and nanoscale material joining technologies, have provided many solutions to these challenges. Drawing on the latest research, this book describes primary and secondary processes for the joining of advanced materials such as metals and alloys, intermetallics, ceramics, glasses, polymers, superalloys, electronic materials and composites in similar and dissimilar combinations. It also covers details of joint design, quality assurance, economics and service life of the product. Provides valuable information on innovative joining technologies including induction heating of metals, ultrasonic heating, and laser heating at micro- and nanoscale levels Describes the newly developed modelling, simulation and digitalization of the joining process Includes a methodology for characterization of joints

This volume discusses dissimilar metal joining by fusion and solid-state processes. It is a complex process due to differences in chemical compositions, physical properties, mechanical properties, and thermal properties of the parent metals to be joined. The contents focus on issues related to fusion and solid-state welding of dissimilar metals. The book is based on the fundamental and experimental investigation on methodologies used to overcome issues related to dissimilar metal joining by fusion welding (GTAW and its variant), resistance spot welding and solid state joining (friction stir welding, friction stir spot welding, and diffusion bonding) largely based on research investigation conducted at Indian Institute of Technology (IIT) Roorkee.

Joining Processes for Dissimilar and Advanced Materials describes how to overcome the many challenges involved in the joining of similar and dissimilar materials resulting from factors including different thermal coefficients and melting points. Traditional joining processes are ineffective with many newly developed materials. The ever-increasing industrial demands for production efficiency and high-performance materials are also pushing this technology forward. The resulting emergence of advanced micro- and nanoscale material joining technologies, have provided many solutions to these challenges. Drawing on the latest research, this book describes primary and secondary processes for the joining of advanced materials such as metals and alloys, intermetallics, ceramics, glasses, polymers, superalloys, electronic materials and composites in similar and dissimilar combinations. It also covers details of joint design, quality assurance, economics and service life of the product. Provides valuable information on innovative joining technologies including induction heating of metals, ultrasonic heating, and laser heating at micro- and nanoscale levels Describes the newly developed modelling, simulation and digitalization of the joining process Includes a methodology for characterization of joints

This book covers the rapidly growing area of friction stir welding. It also addresses the use of the technology for other types of materials processing, including superplastic forming, casting modification, and surface treatments. The book has been prepared to serve as the first general reference on friction stir technology,. Information is provided on tools, machines, process modeling, material flow, microstructural development and properties. Materials addressed include aluminum alloys, titanium alloys, steels, nickel-base alloys, and copper alloys. The chapters have been written by the leading experts in this field, representing leading industrial companies and university and government research insititutions.

Joining and welding are two of the most important processes in manufacturing. These technologies have vastly improved and are now extensively used in numerous industries. This book covers a wide range of topics, from arc welding (GMAW and GTAW), FSW, laser and hybrid welding, and magnetic pulse welding on metal joining to the application of joining technologies for textile products. The analysis of temperature and phase transformation is also incorporated. This book also discusses the issue of dissimilar joint between metal and ceramic, as well as the technology of diffusion bonding.

This textbook provides fundamental understanding on technological aspects related to arc welding, heat flow, relevant metallurgical transformations, and quality assurance methodologies joints. It has been composed keeping in purview the requirements of those interested in research and development in the field of metal joining. The contents focus on the fundamentals of physics of welded joints, arc welding processes, brazing and soldering, heat flow in welding, welding metallurgy, design of welded joints, and inspection and testing of welded joints and weldability of metals. This book will be useful to both academics and those in the industry.