Welding Technology

This book is designed for the requirements of students of mechanical, production and metallurgical engineering branches. A detailed account of welding processes with specific comments, weld geometry and weld characteristics are presented. The basic principles and concepts are emphasized. Sufficient details of welding equipment are given with guidelines for process and equipment selection. Many concepts relating to productivity in welding are stressed at appropriate places. Thus the book would be useful to practising engineers as well. Welding is basically a metallurgical process. The structure and properties of the weld metal and the heat affected zone are discussed in terms of metallurgical principles, considering that welding metallurgy is an integral part of welding technology. Current terminology, as adopted by American Welding Society, is used. A glossary and a set of questions and problems are provided certain details and additional informations are given in the appendices. Table of Contents* Introduction * Gas Welding * Arc Welding General * Shielded Metal Arc Welding * Submerged Arc Welding * Gas Tungsten Arc Welding * Gas Metal Arc Welding * Plasma Arc Welding * Stud Welding * Resistance Welding * Electro-Slag Welding * Electron Beam Welding * Miscellaneous Welding Processes * Heat Flow in Welding * Welding Metallurgy * Welding of Specific Alloys * Residual Stresses and Distortion * Testing and Inspection * Brazing and Soldering * Metal Surfacing * Design of Weldments * Maintenance Welding Bibliography Glossary Questions and Problems APPENDICES 1. Welding Cost 2. Cross-sectional Area of Welds 3. List of Selected LS. Specifications 4. Recommended Moisture Levels in the Electrode Coating 5. The AWS Electrode Classifications 6. Weld Symbols 7. Steel Designations 8. Approximate Weight of Deposited Metal for Mild Steel Joints (kg metre)