Welding techniques and associated weld distortion problems encountered in heavy industries are very typical and need to be dealt with from a view point of their requirements. Welding Techniques, Distortion Control and Line Heating covers in detail aspects of welding, distortion control and line heating in the context of heavy fabrication, shipbuilding and offshore industry and includes different welding methods used namely SMAW, GMAW, GTAW, SAW, Electrogas, Electroslag and Friction Stir Welding. This book discusses in detail weld induced distortion mechanism, types of distortions, their estimation using finite element analysis, various distortion control mechanisms namely controlled heat input, structural fit-up, thermal tensioning and heat sinking, effect of welding sequence on fabrication of stiffened panels.

Preface / Acknowledgement / Introduction: Welding / Welding Distortion / Line Heating / Arc Welding: Arc Welding Power Sources / Welding Parameters and their Effects / Welding Processes / Welding Techniques / Welding Design / Friction Stir Welding: Tool Geometry / Tool Shoulder Material and Backing Material / Heat Generation / Heat Transfer into Tool and Work Piece / Finite Element Heat Flow Model / Basic FSW Metallurgy / Defects and their Detection / Advantages and Disadvantages of the FSW Process / Friction Stir Welding Trial / Welding Distortion: Distortion Mechanism / Types of Distortion and their Prediction / Finite Element Analysis of Distortion / Distortion Control: Design Considerations / Structural Fitup / Heat Input / Alteration of Thermal Pattern / Welding Sequence / Summary / Residual Stress: Sources of Residual Stresses / Welding Residual Stress Formation / Prediction of Welding Residual Stresses / Line Heating: Thermal Analysis / Mechanical Analysis/ Artificial Neural Networks / Plastic Strain Distribution / Compound Curved Surface Generation / References / Index.

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