The fundamental and advanced analysis of welding metallurgy and technology are presented in Foundation of Welding Technology in simple, unambiguous language. The fundamentals of welding, different welding processes, flux formulation for SMAW electrodes, heat transfer during welding, welding metallurgy of steel, stainless steel, and non-ferrous alloys (Al-base, Cu-base, Ti-base, and Mg-base), as well as welding metallurgy of dissimilar metals and alloys, hard facing techniques, welding defects and residual stress, brazing and soldering, weld inspection and testing, are all covered in this book.In depth in a very organised and logical fashion. The book contains several examples of numerical problems that the students can use as a reference. The MCQs and Numerical Problems will unquestionably be beneficial to candidates for the GATE, ISE/ESE, and other exams. This book is specifically intended for mechanical, production, metallurgical, and materials engineering diploma, undergraduate, and postgraduate students.