JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

FUNDAMENTALS OF METAL FORMING: Classification of forming processes, mechanism of metal forming, temperature of metal working, hot working, cold working, friction and lubricants. Rolling of metals: Rolling processes, forces and geometrical relationship in rolling, simplified analysis, rolling load, rolling variables, theories of cold and hot rolling, problems and defects in rolling, torque and power calculations.

UNIT - II

FORGING: Classification of forging processes, forging of plate, forging of circular discs, open die and closed-die forging, forging defects, and powder metallurgy forging. Extrusion: Classification, Hot Extrusion, Analysis of Extrusion process, defects in extrusion, extrusion of tubes, production of seamless pipes.

UNIT - III

DRAWING: Drawing of tubes, rods, and wires: Wire drawing dies, tube drawing process, analysis of wire, deep drawing and tube drawing. Sheet Metal forming: Forming methods, Bending, stretch forming, spinning and Advanced techniques of Sheet Metal Forming, Forming limit criteria, defect in formed parts. .

UNIT - IV

ADVANCED METAL FORMING PROCESSES: HERF, Electromagnetic forming, residual stresses, in-process heat treatment, computer applications in metal forming. Press tool design: Design of various press tools and dies like piercing dies, blanking dies, compound dies and progressive blanking dies, design of bending, forming and drawing dies.

UNIT - V

JIGS AND FIXTURE DESIGN: Principles of location, six-point location principle, clamping elements and methods.

REFERENCES:

• 1. Mechanical Metallurgy / G.E. Dieter / Tata McGraw Hill, 1998. III Edition
• 2. Principles of Metal Working / Sunder Kumar
• 3. Principles of Metal Working processes / G.W. Rowe
• 4. ASM Metal Forming Hand book.