NPTEL : NOC:Joining Technologies of Commercial Importance (Mechanical Engineering)

Co-ordinators : Prof. Dheerendra Kumar Dwivedi


Lecture 1 - Introduction: Manufacturing and Joining

Lecture 2 - Fundamental mechanisms of Joining

Lecture 3 - Classification of Joining Processes

Lecture 4 - Heat Generation in Welding

Lecture 5 - Protection of Weld Metal

Lecture 6 - Principle of Fusion Welding Processes: Gas Welding

Lecture 7 - Fundamentals of Welding

Lecture 8 - Physics of Welding Arc

Lecture 9 - Shielded Metal Arc Welding

Lecture 10 - Gas Tungsten Arc Welding

Lecture 11 - Newer variants of Gas tungsten arc welding

Lecture 12 - Gas metal arc welding

Lecture 13 - Submerged arc welding

Lecture 14 - Electro-slag and Electro-gas welding

Lecture 15 - Laser beam welding

Lecture 16 - Brazing

Lecture 17 - Soldering and braze welding

Lecture 18 - Fundamentals of resistance welding

Lecture 19 - Resistance welding processes: spot and seam welding

Lecture 20 - Flash butt welding

Lecture 21 - Adhesive joining

Lecture 22 - Weld bonding

Lecture 23 - Solid state joining technologies: Fundamentals

Lecture 24 - Ultrasonic welding

Lecture 25 - Diffusion welding

Lecture 26 - Explosive welding

Lecture 27 - Magnetic pulse welding

Lecture 28 - Weld thermal cycle

Lecture 29 - Heat affected zone and weld thermal cycle: I

Lecture 30 - Heat affected zone and weld thermal cycle: II

Lecture 31 - Solidification of weld metal

Lecture 32 - Fundamentals of weldability of metals

Lecture 33 - Weldability of carbon and alloys steels: Fe-C, CCT

Lecture 34 - Weldabiliity of stainless steels

Lecture 35 - Metallurgical transformations in weld and heat affected zone of steels

Lecture 36 - Weldability of aluminium alloys

Lecture 37 - Solidification cracking and their control

Lecture 38 - Residual Stresses in Weld Joints

Lecture 39 - Cracking of Welded Joints I: Solidification and liquation Cracks

Lecture 40 - Cracking of Welded Joints II: Cold Cracks