Welding Principles and Practices Author:Raymond J. Sacks, Edward R. Bohnart This text introduces students to a solid background in the basic principles and practices of welding. It first introduces fundamental theory of the welding process (gas arc, semi-automatic, automatic, and robotic welding) and then provides practice jobs so students develop manipulative skills and technical understanding. Metals and their welding... more » characteristics, safety practices, welding symbols, and the fundamentals of print reading are all covered.« less