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Indian Institute of Technology Madras

Analysis and Modeling of Welding

Indian Institute of Technology Madras and NPTEL via Swayam

This course may be unavailable.


Welding is an important fabrication process in manufacturing industries. Complex parts fabricated using forming, machining and metal removal processes are assembled into a larger part using welding. The welding process involves a number of physical processes that play a role in determining the performance of the joint. With newer and dissimilar combinations required to be joined as the technological advances take place in the area of manufacturing, it is important for practicing engineers, graduate students and prospective researchers to understand welding to take advantage of the developments taking place. This course offers detailed analysis and modeling techniques that apply to the different physical phenomena that take place during welding. 


Week 1
1 Introduction to fusion welding processes
2 Heat sources
3 Heat removal

Week 2
4 Thermal modelling
5 Zones in a weldment
6 Phase change

Week 3
7 Fluid flow in the weld pool
8 Fusion zone
9 Conduction mode and Keyhole mode

Week 4
10 Introduction to microsegregation
11 Solute redistribution – Microscale
12 Microstructure evolution

Week 5
13 Solute transfer – Macroscale
14 Defects in fusion welds

Week 6
15 Effects of dilution
16 Weld Cladding

Week 7
17 Distortion in welding
18 Dissimilar welding
19 Solutions to Dissimilar welding
20 Integrated approach


Taught by

Gandham Phanikumar


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