Unit 1 Physics of welding arc - characteristics of arc and mode of metal transfer,

8 lecture hours

• welding fluxes and coatings - type and classification
• electrode codes and their critical evaluation
• Program Name: Master of Engineering Level: PG Subject Code: ME02000841 Course / Subject Name: Advance Welding Technology

Unit 2 Welding machine characteristics - conventional and pulsed power sources,

• inverter type
• power sources for resistance welding
• weldability - weldability of cast iron
• plain carbon and low alloy steels
• stainless steels 08 18

Unit 3 Determination of preheat temperature, use of Schaeffler's diagram,

8 lecture hours

• weldability tests
• heat flow in welding - significance
• theory of heat flow
• cooling rate determination
• selection of welding parameters based on heat flow analysis

Unit 4 Residual stress and distortion - theory of residual stresses and distortion

8 lecture hours

• welding codes
• joint design
• analysis of fracture and fatigue of welded joints - fracture
• energy consideration
• fracture toughness testing and its application to welded joints

Unit 5 Automated welding systems; microprocessor control of arc welding and

• resistance welding
• quality assurance in welding
• welding fumes and their effect on the environment. 07 14

Unit 6 Modern welding processes like

• EBW, LBW, Under water Welding
• Ultrasonic welding etc. welding of ceramics
• plastics and composites. 09 14