Classification of welding processes: heat sources, power sources, arc phenomena, arc blow, power source characteristics, V-I, relationship, flux covering, different types of  electrodes and their applications, gas welding and cutting,  flame characteristics

Gas tungsten arc welding, electrode polarity, shielding gas, use   of   pulsed  arc  and  GTA  spot  welding; gas  metal  arc  welding,  nature and conditions of spray  transfer, dip transfer and CO2 welding, flux cored and pulsed and synergic MIG welding

Submerged arc welding, advantages and limitations, process variables and their effects, significance of   flux-metal combination, modern developments, narrow gap submerged arc welding, applications

Special   features of plasma-arc, transferred and   non- transferred arc, keyhole and puddle-in mode of operation,  low  current and high current plasma arc welding  and  their applications, plasma cutting,  surfacing and applications

Principle of contact resistance, temperature distribution, spot welding cycle, inter-relationship between process variables; choice of electrode materials. spot, seam,  projection, stud, upset and flash butt welding, electro slag and electro gas welding


1.Nadkarni  S.V.,  ‘Modern Arc Welding Technology’,  Oxford and  IBH Publishing,  1996

2.Kearns W. H, ‘Welding Hand Book (Welding Processes)’, Volume  II and III, 7th Edition, AWS, 1984

3.Parmer  R. S., ‘Welding Engineering and Technology’, Khanna Publishers, 1997

4.Houldcroft P.T, ‘Submerged Arc Welding’, Abington,  1989

5.Lancaster J.F, ‘The Physics of Welding’, Pergamon Press, 1984