The physical and technical foundations, applications and prospects for the use of traditional and special methods of solid phase welding and fusion welding are considered. The main process parameters and welding modes for a number of structural materials are given. Technological schemes of manufacturing of standard welded structures are given. The textbook can be used when mastering the professional module PM.02 "Welding and cutting parts from various steels, non-ferrous metals and their alloys, cast irons in all spatial positions" (MDK.02) in the profession "Welder." For students of institutions of secondary vocational education.