NPTEL : Welding Engineering (Mechanical Engineering)

Co-ordinators : Dr. D.K. Dwivedi


Lecture 1 - Introduction to Welding Engineering

Lecture 2 - Classification of Welding Processes - I

Lecture 3 - Classification of Welding Processes - II

Lecture 4 - Sources of Heat and Protection of Weld pool

Lecture 5 - Protection of Weld Pool

Lecture 6 - Introduction

Lecture 7 - Fundamentals of Arc Initiation

Lecture 8 - Arc Maintenance & Arc Characteristics

Lecture 9 - Arc Forces

Lecture 10 - Arc Efficiency

Lecture 11 - Melting Rate in Different Welding Processes

Lecture 12 - Types of power sources and their characteristics - I

Lecture 13 - Types of power sources and their characteristics - II

Lecture 14 - SMAW - I

Lecture 15 - SMAW - II

Lecture 16 - GTAW - I

Lecture 17 - GTAW - II

Lecture 18 - PAW & SAW

Lecture 19 - SAW

Lecture 20 - GMAW

Lecture 21 - Brazing, Soldering & Braze Welding

Lecture 22 - Braze welding and Electroslag welding

Lecture 23 - Weld Thermal Cycle

Lecture 24 - Effect of WTC and Cooling rate in welding

Lecture 25 - Cooling rate

Lecture 26 - Peak temperature & Solidification rate

Lecture 27 - Residual stress - I

Lecture 28 - Residual stress - II

Lecture 29 - Introduction

Lecture 30 - Type of joints and welds

Lecture 31 - Edge preparation

Lecture 32 - Design for static and fatigue loading

Lecture 33 - Fatigue fracture of weld joints - I

Lecture 34 - Fatigue fracture of weld joints - II

Lecture 35 - Introduction-

Lecture 36 - DT & NDT

Lecture 37 - Understanding Weldability

Lecture 38 - Reactions in weldment

Lecture 39 - Weldability of Al alloys

Lecture 40 - Failure analysis and prevention