METAL FORMING ANALYSIS
M-807-A METAL FORMING ANALYSIS
Stress-Strain relations in Elastic and plastic deformations, Yield criteria for ductile metals, work hardening and anisotropy in yielding Flow curves.
Formulations of plastic deformation problems, applications of theory of plasticity for solving metal forming problems using Slab method, Upper and Lower Bound methods.
Slip Line Field Theory
Effects of temperature and strain rate in metal working, friction and Lubrication in Hot and Cold working.
Technology and analysis of important metal forming processes – Forging, Rolling, Extrusion, Wire drawing, Sheet metal forming processes like Deep drawing. Stretch forming. Bending.
Application of Finite Element Methods to Metal Forming Processes – special discretization. Shape function. Stiffness matrices and their assembly, Implicit and explicit formulations, Elasto-plastic approximations, Lagrangian vs Eularian schemes. Material integration schemes. Auxiliary equations for contact, Friction and incompressibility. Thermo-mechanical problem formulation, Steady state solutions for Drawing, forging. Rolling and Extrusion problems.
Case studies- analysis and validation of metal forming processes problems by standard softwares.
Forming defects in products and their critical effects, remedies.
An introduction to use of international standards in metal forming problem solutions and System design.
Text Books:
- Metal Forming Analysis, by RH Wagoner; Cambridge University Press.
- Physical Metallurgy, by GE Dieter; McGraw Hill.
Reference Books:
- Theory of Elasticity, by Dally and Riley.
Metal Forming handbook, by Frontzek, M Kasparbauer; Springer Verlag
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