| 1 |
Introduction, Definition of plastic deformation, Classification of forming processes, the behaviour of materials under tension, compression, bending, torsion & impact.
True stress - true strain, Instability in simple tension, Types of stress - strain curves, Effect of temperature, strain rate & work of deformation.
Forging Processes, Definition, Open die forging, Forces and work of deformation work of deformation, forging of rectangular & cylindrical specimens.
Forging processes, closed die forging, Die design, Die material, lubrication, Forgeability, Forgeability tests, Forging equipment, -Forging defects.
Rolling processes, Definition, Rolling products, Mechanics of flat rolling, Roll force, torque, & power.
Rolling processes. Flat rolling practice, Defects in rolling, Equipment, Miscellaneous rolling operations.
Exam # 1.
Extrusion processes: Principle, Types of extrusion, Metal flow in extrusion, Ideal deformation and Ideal deformation with friction.
Extrusion Processes: Extrusion practice, Hot & Cold extrusion, Defects in extrusion
Rod & Wire drawing, Principle, Mechanics of rod & wire drawing, Ideal deformation, Ideal deformation with friction. Drawing forces & stresses.
Drawing of round rods & wires, Die pressure, Optimum die angle, drawing practices, drawing of flat strip.
Exam # 2.
Deep drawing, Formability of sheet materials, Mechanics of deep drawing, Drawing ratio Forces & Drawing practice, Forming limit diagram.
Sheet metal forming, Principle, Shearing processes, blanking & piercing processes, Shearing dies (Compound & Progressive), Shearing forces & power.
Welding processes, Principle, Classification of welding processes, Oxy - acetylene, shielded metal arc, Gas metal arc, Gas tungsten arc, and Submerged arc welding processes.
Final Exam.
|