Welding Engineering

This 40 video lecture series would discuss the manufacturing and the joining techniques.

The course begins with a discussion for a need of welding and selection of a joint, there will be further discussions on comparisions of welding with other manufacturing processes, selection of a welding process, advantages and limitations of welding and application of welding in different sectors

Introduction to Welding Engineering.
Classification of Welding Processes- I.
Classification of Welding Processes- II.
Sources of Heat and Protection of Weld pool.
Protection of Weld Pool.
Introduction..
Fundamentals of Arc Initiation.
Arc Maintenance & Arc Characteristics.
Arc Forces.
Arc Efficiency.
Melting Rate in Different Welding Processes.
Types of power sources and their characteristics- I.
Types of power sources and their characteristics- II.
SMAW- II.
GTAW- I.
GTAW- II.
SMAW- I.
PAW & SAW.
SAW.
GMAW.
Brazing, Soldering & Braze Welding.
Braze welding and Electroslag welding.
Weld Thermal Cycle.
Effect of WTC and Cooling rate in welding.
Cooling rate.
Peak temperature & Solidification rate.
Residual stress- I.
Residual stress- II.
Introduction.
Type of joints and welds.
Edge preparation.
Design for static and fatigue loading.
Fatigue fracture of weld joints- I.
Fatigue fracture of weld joints- II.
Introduction-.
DT & NDT.
Understanding Weldability.
Reactions in weldment.
Weldability of Al alloys.
Failure analysis and prevention.