This is Part B of a two part video on welding processes typically used in industry. This program covers the following subjects:  Gas metal arc welding (MIG)  Determination of pre-heat  Post heat treatment of welds  Narrow gap welding  Flux cored arc welding - gas and self shielded  Plasma transferred arc welding  Friction stir welding  Oxyacetylene welding  Thermit welding. The program shows, with the aid of computer graphics, how the processes work - their advantages, limitations and typical areas of application of each process.