Lecture 4 of 40Introduction
Sources of Heat and Protection of Weld pool
Dr. D. K. Dwivedi · IIT Roorkee
Credits and licence
- From
- Welding Engineering, IIT Roorkee (at NPTEL)
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only.
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge.
- Who can watch
- Tweens profiles and older. How courses are placed
All the lectures
- 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- I
- SMAW- II
- GTAW- I
- GTAW- II
- 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