NPTEL : NOC:Theory of Production Processes (Mechanical Engineering)

Co-ordinators : Dr. Pradeep K. Jha


Lecture 1 - Introduction to Theory and Practics of Casting

Lecture 2 - Theory of Solidification: Cooling curves

Lecture 3 - Solidification of pure metals and alloys

Lecture 4 - Factors affecting solidification process

Lecture 5 - Fluidity of liquid metals

Lecture 6 - Technology of patternmaking: Pattern materials

Lecture 7 - Patternmaking: Types of pattern and allowances

Lecture 8 - Molding sand ingredients and sand testing methods

Lecture 9 - Sand molding methods

Lecture 10 - Coremaking: Properties and types of cores

Lecture 11 - Gating system design: Types of gates

Lecture 12 - Gating system design: Pouring time calculation

Lecture 13 - Introduction to riser design

Lecture 14 - Risering methods

Lecture 15 - Problem solving on gating design and risering methods

Lecture 16 - Theory of melting: Types of furnaces

Lecture 17 - Melting and production of Iron castings

Lecture 18 - Production of steel and non-ferrous castings

Lecture 19 - Casting design considerations

Lecture 20 - Casting defects: Types, causes and remedies

Lecture 21 - Concept of stress and strain, Elastic and plastic behavior

Lecture 22 - State of stress in two and three dimensions, Mohr’s circle

Lecture 23 - Description of strain at a point

Lecture 24 - Mean and deviator stresses, Elastic stress strain relationships

Lecture 25 - Theory of plasticity: True stress and true strain, Flow curve

Lecture 26 - Yield criteria for ductile materials

Lecture 27 - Flow rules, Plastic stress strain relationships

Lecture 28 - Classification of metal working processes

Lecture 29 - Mechanics of metal working

Lecture 30 - Temperature in metalworking: Hot and cold working

Lecture 31 - Rolling process: Classification, Hot and cold rolling

Lecture 32 - Analysis of rolling operation: Forces and geometrical relationships

Lecture 33 - Introduction to forging Process: Classification and equipments

Lecture 34 - Analysis of forging process

Lecture 35 - Problem solving on rolling and forging processes

Lecture 36 - Extrusion process: Classification and analysis

Lecture 37 - Drawing of rods, tubes and wires

Lecture 38 - Analysis of drawing operation

Lecture 39 - Sheet metal operations

Lecture 40 - Metal Forming Defects

Lecture 41 - Classification of joining processes

Lecture 42 - Heat flow in welding

Lecture 43 - Metallurgy of fusion welds

Lecture 44 - Heat affected zone in welding

Lecture 45 - Heat treatment processes in welding

Lecture 46 - Principle of shield arc welding processes

Lecture 47 - Principle of gas shield arc welding processes

Lecture 48 - Principle of Resistance welding

Lecture 49 - Principle of Solid State Welding Processes

Lecture 50 - Brazing, soldering and adhesive bonding

Lecture 51 - Residual stresses in welding

Lecture 52 - Methods of controlling residual stresses in welding

Lecture 53 - Welding Distortion

Lecture 54 - Control of welding distortion

Lecture 55 - Preheat and postweld heat treatment of weldments

Lecture 56 - Weldability of metals

Lecture 57 - Weldability of steels

Lecture 58 - Weldability of cast iron

Lecture 59 - Weldability of non-ferrous materials

Lecture 60 - Welding defects