UNIT I GAS AND ARC WELDING PROCESSES Fundamental principles – Air Acetylene welding, Oxyacetylene welding, Carbon arc welding, Shielded metal arc welding, Submerged arc welding, TIG & MIG welding, Plasma arc welding and Electroslag welding processes - advantages, limitations and applications. (Chapter - 1) UNIT II RESISTANCE WELDING PROCESSES Spot welding, Seam welding, Projection welding, Resistance Butt welding, Flash Butt welding, Percussion welding and High frequency resistance welding processes - advantages, limitations and applications. (Chapter - 2) UNIT III SOLID STATE WELDING PROCESSES Cold welding, Diffusion bonding, Explosive welding, Ultrasonic welding, Friction welding, Forge welding, Roll welding and Hot pressure welding processes - advantages, limitations and applications. (Chapter - 3) UNIT IV OTHER WELDING PROCESSES Thermit welding, Atomic hydrogen welding, Electron beam welding, Laser Beam welding, Friction stir welding, Under Water welding, Welding automation in aerospace, nuclear and surface transport vehicles. (Chapter - 4) UNIT V DESIGN OF WELD JOINTS, WELDABILITY AND TESTING OF WELDMENTS Various weld joint designs – Welding defects – causes and remedies - Weldability of Aluminium, Copper, and Stainless steels. Destructive and non destructive testing of weldments. (Chapter - 5)
