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Course Detail

Course Name Metal Forming Technology
Course Code 15MEC268
Program B. Tech. in Mechanical Engineering
Year Taught 2019


Unit 1

Fundamentals of Metal Forming: Theory of Plasticity – stress tensor – Invariants of stress strain – hydrostatic & deviator components of stress – flow curve – true stress and true strain. Yielding criteria – yield locus – octahedral shear stress and shear strains. Plastic deformations of crystals – critical resolved shear stress. Metal working: mechanics of metal working – working temperature – strain rate effects – friction and lubrication – deformation zone geometry.

Unit 2

Forging and Rolling Processes: Forging process – classification – equipment – calculation of forging loads – forging defects – residual stresses. Rolling: classification – rolling mills – rolling of bars & shapes – rolling forces – analysis of rolling – defects in rolling – theories of hot & cold rolling – torque power estimation.

Extrusion and Drawing Processes: Extrusion: classification – equipment – Analysis of extrusion process – extrusion defects – hydrostatic extrusion – tube extrusion. Drawing: Classification – rod & wire drawing equipment – analysis. Deep drawing – tube drawing – analysis, residual stresses.

Unit 3

Sheet Metal Forming Processes: methods – shearing and blanking – bending – stretch forming – deep drawing – forming limit criteria – defects.

Special Forming Methods: Stretch forming – press brake forming – explosive forming – electro hydraulic forming – magnetic pulse forming – super plastic forming – electro forming – fine blanking – Isothermal forging – HERF.

Text Books

  • Dieter G. E. – ‘Mechanical Metallurgy’ – TATA McGraw-Hill – 2013 – 3rd Edition


  • Altan T., Oh S. I., and Gegei H. L. – ‘Metal Forming Fundamentals and Applications’ – ASM, USA – 1983
  • Hosford W. F. and Caddel R. M. – ‘Metal forming – Mechanics & Metallurgy’ – Prentice Hall Publishing Co. – 1990
  • SME – ‘Tool and Manufacturing Engineers Hand Book – Vol2’ – McGraw Hill NY -1984

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