Joining
Process
Prof. Ubaid Shah
A typical fusion-welded joint
Gas Welding
120 bar
Less than 2 bar
CaC2+2H2O Ca(OH)2+C2H2+Heat
A 40 litre acetylene cylinder will hold approximately 12-13kg
of acetone in which we can dissolve 5500 litres of acetylene
since 1 litre of acetylene weighs 1.1 g.
Metal transfer during welding
Types of arc welding
Flux cored arc welding
High frequency generator
Water cooled
Resistance projection welding
Transformer
Fixed head
Movable head
ForceForce
Transformer
Force Force
Stud Welding
Force
LASER Beam Welding
Electron Beam Welding
Defects in welding
Slag inclusion
Soldering
Soldering
Brazing
Riveting
Adhesive Bonding
Thank You!!!

Basics of joining process