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Principles of Metal Forming Technology

Principles of Metal Forming Technology. Instructor: Prof. Pradeep Kumar Jha, Department of Mechanical Engineering, IIT Roorkee. The course focuses on understanding the science and technology of different forming processes. Most of the metallic objects undergo at least one of the metal forming operations, except the cast ones. Understanding basic principles of metal forming and further being applied by engineers and metallurgists directly contribute towards improvement in production in the industries. The concept of stress, deformation and failure, mechanics of metalworking and analysis of different metal working processes will be covered during the whole course. Introduction and working principle of powder metallurgy forging will be presented in the end. The course will enable the students be conversant with working principles so that they can use the knowledge gained towards increasing the productivity of manufacturing industries in the long run. (from nptel.ac.in)

Lecture 33 - Analysis of Extrusion Processes


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Lecture 01 - Introduction to Metal Forming Technology
Lecture 02 - Classification of Metal Working Processes
Lecture 03 - Behavior of Materials
Lecture 04 - Failure of Materials
Lecture 05 - Concept of Stress and Strain
Lecture 06 - Description of Stress at a Point
Lecture 07 - State of Stress in Three Dimension
Lecture 08 - Description of Strain
Lecture 09 - Hydrostatic and Deviator Components of Stress and Strain
Lecture 10 - Elastic Stress-Strain Relationships
Lecture 11 - Introduction to Theory of Plasticity and Flow Curve
Lecture 12 - True Stress and True Strain
Lecture 13 - Yield Criteria for Ductile Materials
Lecture 14 - Yield Locus, Octahedral Shear Stress and Strain
Lecture 15 - Plastic Stress-Strain Relationships
Lecture 16 - Measures of Yielding and Ductility and Tensile Testing
Lecture 17 - Instability in Tension
Lecture 18 - Strain Rate Effects on Flow Properties
Lecture 19 - Temperature Effects on Flow Properties
Lecture 20 - Influence of Various Parameters on Flow Properties
Lecture 21 - Classification of Metal Working Processes
Lecture 22 - Mechanics of Metal Working and Analysis Methods
Lecture 23 - Determination of Flow Stresses in Metal Working
Lecture 24 - Hot Working and Cold Working
Lecture 25 - Metallurgical Considerations in Metal Forming
Lecture 26 - Introduction and Classification of Forging Processes
Lecture 27 - Equipments used in Forging
Lecture 28 - Forging in Plane Strain
Lecture 29 - Introduction and Classification of Rolling Processes
Lecture 30 - Analysis of Rolling Load Calculations
Lecture 31 - Defects in Rolled and Forged Products
Lecture 32 - Introduction and Classification of Extrusion Processes
Lecture 33 - Analysis of Extrusion Processes
Lecture 34 - Extrusion of Tubes and Pipes, Extrusion Defect
Lecture 35 - Introduction to Rod and Wire Drawing
Lecture 36 - Analysis of Wire Drawing and Tube Drawing Processes
Lecture 37 - Sheet Metal Operations
Lecture 38 - Sheet Metal Operations (cont.)
Lecture 39 - Introduction to Powder Metallurgy Forming
Lecture 40 - Steps in Powder Metallurgy Forming