ME9252 ENGINEERING MATERIALS AND METALLURGY

ME9252 ENGINEERING MATERIALS AND METALLURGY

1. CONSTITUTION OF ALLOYS AND PHASE DIAGRAMS

Constitution of alloys – Solid solutions, substitutional and interstitials – Phase diagrams and microstructure development: Isomorphous, eutectic, peritectic, eutectoid and peritectroid alloy systems. Iron-Iron carbide equilibrium diagram, Development of microstructures in Iron- carbon alloys.

2. HEAT TREATMENT

Full annealing-stress relief, Recrystalisation- Spheroidizing, Normalising, Hardening and tempering of steel. Isothermal transformation diagrams- TTT– CCT cooling curves - Hardenability, Jominy end quench test – Austempering, martempering – case hardening, carburizing, nitriding, cyaniding, carbonotriding –flame and induction hardening – vacuum and plasma hardening – current trends- thermo-mechanical treatments- elementary ideas on sintering.

3. FERROUS AND NON FERROUS METALS

Effect of alloying additions on steel (Mn, Si, Cr, Mo, V, Ti & W)- classification of steels ( tool steel, stainless)– cast irons – alloy cast irons- Copper and Copper alloys –Aluminum and its alloys- Magnesium and its alloys– Titanium and its alloys- Nickel and Cobalt alloys, properties and applications of these materials. 

4. NON-METALLIC MATERIALS

Types, properties and applications: Polymers, Ceramics and Composites– Super conductors- nanomaterials and their properties.

5. MECHANICAL PROPERTIES AND TESTING 9

Crystal imperfections- Dislocations- Strengthening mechanisms- Elastic, anelastic and viscoelastic behaviour – modulus of elasticity- plastic deformation- Mechancial tests- tension, compression, impact, hardness- effect of temperature, grain size , solutes and precipitates on dislocation dynamics – Mechancism of Fracture - mechanism of creep-creep resistant materials- creep tests- fracture toughnessductile- brittle transition –deformation mechanism maps- fatigue fracture-fatigue test.

TEXT BOOKS

1. Raghavan. V. Materials Science and Engineering”, Prentice Hall of India Pvt. Ltd, 5th edition, 2007.

2. Williams D Callister, “Material Science and Engineering” Wiley India Pvt Ltd, Revised Indian edition 2007.

REFERENCES

1. George E. Dieter, Mechanical Metallurgy, McGraw Hill, 2007.

2. Syndney H Avner, “Introduction to Physical Metallurgy”, 2/E Tata McGraw Hill Book Company, 2007.

3. Kenneth G. Budinski and Michael K. Budinski “Engineering Materials”, PHI Pearson Educations, 8th Edition, 2007.

4. G.S. Upadhay and Anish Upadhay, “Materials Science and Engineering”, Viva Books Pvt. Ltd, 2006.

5. James F. Shackelford and Madanpalli K. Muralidhara, Introduction to Materials Science for Engineers, Pearson Education, 6th edition, 2007.

6. Donald R. Askeland and Pradeep P. Phulé, The Science and Engineering of Materials, Thomson 5th edition, 2007.

ME9251 MANUFACTURING TECHNOLOGY – II

ME9251 MANUFACTURING TECHNOLOGY – II

1. THEORY OF METAL CUTTING

Mechanics of chip formation, single point cutting tool, forces in machining, thermal aspects of chip formation. orthogonal metal cutting, cutting tool materials, tool wear, tool life, surface finish, cutting fluids and Machinability.

2. CENTRE LATHE AND SPECIAL PURPOSE LATHES

Centre lathe, constructional features, specification, cutting tools, nomenclature various operations – taper turning methods, thread cutting methods, special attachments, machining time and power estimation. capstan and turret lathes – tool layout, - automatic lathes: semi automatics – single spindle: swiss type, automatic

screw type- multi spindle.

3. RECIPROCATING MACHINES, MILLING MACHINES AND GEAR CUTTING

Reciprocating machine tools: shaper, planer, slotter: milling: types, milling cutter attachments, change gear calculations, machining time calculation, operations. hole making: drilling, reaming, boring, tapping, machining time calculations. gear cutting: forming, generations, shaping, planning and hobbing-tool and cutter grinders.

4. ABRASIVE PROCESS, BROACHING

Abrasive processes: grinding wheel – specifications and selection, types of grinding process – cylindrical grinding , surface grinding, centreless grinding, internal grindinghoning, lapping, super finishing, polishing and buffing, abrasive jet grindling.broaching machines: broach construction – push, pull, surface and

continuous broaching machines.

5. CNC MACHINE TOOLS AND PART PROGRAMMING

Numerical control (NC) machine tools – CNC types, constructional details, special features. machining centre, training centre.part programming fundamentals – manual programming.

TEXT BOOKS

1. Roy. A. Lindberg, “Process and Materials of Manufacture”, PHI / Pearson Education Fourth , Edition 2006.

2. Rao. P.N “ Manufacturing Technology”, Metal Cutting and Machine Tools, Tata Mc Graw–Hill, New Delhi, 2003.

REFERENCES

1. Richerd R Kibbe, John E. Neely, Roland O. Merges and Warren J. White. “Machine Tool Practices”, Prentice Hall of India, 1998

2. HMT – Production Technology, Tata Mc Graw Hill, 1998.

3. Hajra Choudhury. Elements of Workshop Technology – Vol.II. Media Promoters.

4. Geofrey Boothroyd, Fundamentals of Metal Machining and Machine Tools, Mc Graw Hill, 1984.

CE9213 STRENGTH OF MATERIALS

CE9213 STRENGTH OF MATERIALS

1. STRESS, STRAIN AND DEFORMATION OF SOLIDS

Rigid bodies and deformable solids – Tension, Compression and Shear Stresses – Deformation of simple and compound bars – Thermal stresses – Elastic Constants – Volumetric strains – Stresses on inclined planes – Principal stresses and principal planes – Mohr’s circle of stress.

2. TRANSEVERSE LOADING ON BEAMS AND STRESSES IN BEAMS

Beams – types transverse loading on beams – Shear force and bending moment in beams – Cantilevers – Simply supported beams and over – hanging beams. Theory of simple bending - bending formula – bending stress distribution – Load carrying capacity – Proportioning of sections – Flitched beams – Shear stress distribution.

3. TORSION

Stresses and deformation in circular and hollows shafts – Stepped shafts – Shafts fixed at the both ends – Stresses in helical springs – Deflection of helical springs.

4. DEFLECTION OF BEAMS

Double Integration method – Macaulay’s method – Area moment theorems for computation of slopes and deflections in beams – Conjugate beam and energy method – Maxwell’s reciprocal theorems.

5. THIN CYLINDERS, SPHERES AND THICK CYLINDERS

Stresses in thin cylindrical shell due to internal pressure circumferential and longitudinal stresses – deformation in thin cylinders –spherical shells subjected to internal pressure –deformations in spherical shells - Lame’s theory – application of theories of failure

TEXTBOOKS

1. Rajput.R.K. “Strength of Materials” S.Chand & co Ltd. New Delhi 1996

2. Jindal U.C. “Strength of Materials” Asian Books Pvt Ltd, New Delhi 2007

REFERENCES

1. Egor.P.Popov “Engineering Mechanics of Solids” Prentice Hall of India, New Delhi 1997

2. Subramanian R. “Strength of Materials” Oxford University Press, Oxford Higher Education series ,2007

3. Hibbeler , R.C, Mechanics of materials”, Pearson Education, Low price Edition,2007

MA 9262 NUMERICAL METHODS

MA 9262 NUMERICAL METHODS

1. SOLUTION OF EQUATIONS AND EIGENVALUE PROBLEMS

Solution of algebraic and transcendental equations - Fixed point iteration method – Newton-Raphson method- Solution of linear system of equations - Gauss Elimination method – Pivoting - Gauss-Jordan methods – Iterative methods of Gauss-Jacobi and Gauss-Seidel - Matrix Inversion by Gauss-Jordan method - Eigenvalues of a matrix by Power method and by Jacobi’s method.

2. INTERPOLATION AND APPROXIMATION

Interpolation with unequal intervals - Lagrange interpolation – Newton’s divided difference interpolation – Cubic Splines - Interpolation with equal intervals - Newton’s forward and backward difference formulae.

3. NUMERICAL DIFFERENTATION AND INTEGRATION (9 + 3)

Approximation of derivatives using interpolation polynomials - Numerical integration using Trapezoidal, Simpson’s 1/3 and Simpson’s 3/8 rules – Romberg’s method - Two point and three point Gaussian quadrature formulae – Evaluation of double integrals by Trapezoidal and Simpson’s rules.

4. INITIAL VALUE PROBLEMS FOR ORDINARY DIFFERENTIAL EQUATIONS

Single step-methods - Taylor’s series method - Euler’s method - Modified Euler’s method - Fourth order Runge-Kutta method for solving first and second order equations - Multi-step methods - Milne’s and Adams-Bashforth predictor-corrector methods for solving first order equations.

5. BOUNDARY VALUE PROBLEMS IN ORDINARY AND PARTIAL

DIFFERENTIAL EQUATIONS

Finite difference methods for solving two-point linear boundary value problems. Finite difference techniques for the solution of two dimensional Laplace’s and Poisson’s equations on rectangular domain – One dimensional heat-flow equation by explicit and implicit (Crank Nicholson) methods - One dimensional wave equation by explicit method.

TEXT BOOKS

1. Grewal, B.S. and Grewal,J.S., “ Numerical methods in Engineering and Science”, 6th Edition, Khanna Publishers, New Delhi, 2004.

2. Sankara Rao, K. “Numerical methods for Scientists and Engineers’, 3rd Edition Prentice Hall of India Private Ltd., New Delhi, 2007.

REFERENCE BOOKS

1. Chapra, S. C and Canale, R. P. “Numerical Methods for Engineers”, 5th Edition, Tata McGraw-Hill, New Delhi, 2007.

2. Gerald, C. F. and Wheatley, P. O., “Applied Numerical Analysis”, 6th Edition, Pearson Education Asia, New Delhi, 2006.

3. Brian Bradie, “A friendly introduction to Numerical analysis”, Pearson Education Asia, New

EE 9211 ELECTRICAL DRIVES AND CONTROL

EE 9211 ELECTRICAL DRIVES AND CONTROL

1. INTROUDCTION

Fundamentals of electric drives – advances of electric drive-characteristics of loads – different types of mechanical loads – choice of an electric drive – control circuit components: Fuses, switches, circuit breakers, contactors. Relay – control transformers.

2. SPEED CONTROL OF DC MACHINES

DC shunt motors – Speed Torque characteristics - Ward Leonard method, DC series motor – series parallel control – solid state DC drives – Thyristor bridge rectifier circuits- chopper circuits.

3. SPEED CONTROL OF AC MACHINES

Induction motor – Speed torque Characteristics – pole changing, stator frequency variation - slip-ring induction motor – stator voltage variation - Rotor resistance variation, slip power recovery – basic inverter circuits- variable voltage frequency control.

4. MOTOR STARTERS AND CONTROLLERS

DC motor starters : using voltage sensing relays, current sensing relays and time delay relays - wound rotor induction motor starters – starters using frequency sensing relays - DOI -starter and auto transformers starter. 

5. HEATING AND POWER RATING OF DRIVE MOTORS

Load diagram, over load capacity, insulating materials, heating and cooling of motors, service condition of electric drive – continuous, intermittent and short time – industrial application.

TEXT BOOKS

1. N.K De and P.K Sen ‘Electric Drives’ Prentice Hall of India Private Ltd,2002.

2. Vedam Subramaniam ‘Electric Drives’ Tata McGraw Hill ,New Delhi,2007

3. V.K Mehta and Rohit Mehta ‘ Principle of Electrical Engineering’ S Chand & Company,2008

REFERENCES

1. S.K Bhattacharya Brinjinder Singh ‘Control of Electrical Machines’ New Age International Publishers,2002.

2. John Bird ‘Electrical Circuit theory and technology’ Elsevier, First Indian Edition, 2006.

ME9203 KINEMATICS OF MACHINES

ME9203 KINEMATICS OF MACHINES

1. BASICS OF MECHANISMS

Classification of mechanisms – Basic kinematic concepts and definitions – Degree of freedom, Mobility – Kutzbach criterion, Gruebler’s criterion – Grashof’s Law – Kinematic inversions of four-bar chain and slider crank chains – Limit positions – Mechanical advantage – Transmission Angle – Description of some common mechanisms – Quick return mechanisms, Straight line generators, Dwell mechanisms, Ratchets and Escapements, Universal Joint – Basic structures of Robot Manipulators (serial & parallel) – Design of quick return crank-rocker mechanisms.

2. KINEMATICS OF LINKAGE MECHANISMS:

Displacement, velocity and acceleration analysis of simple mechanisms – Graphical method – Velocity and acceleration polygons – Velocity analysis using instantaneous centres – Kinematic analysis by complex algebra methods – Vector approach – Computer applications in the kinematic analysis of simple mechanisms – Coincident points – Coriolis component of Acceleration. 

3. KINEMATICS OF CAM MECHANISMS

Classification of cams and followers – Terminology and definitions – Displacement diagrams – Uniform velocity, parabolic, simple harmonic, cycloidal and polynomial motions – Derivatives of follower motions – Layout of plate cam profiles – Specified contour cams – Circular arc and tangent cams – Pressure angle and undercutting – sizing of cams. 

4. GEARS AND GEAR TRAINS

Law of toothed gearing – Involutes and cycloidal tooth profiles –Spur Gear terminology and definitions –Gear tooth action – contact ratio – Interference and undercutting – Non-standard gear teeth – Helical, Bevel, Worm, Rack and Pinion gears [Basics only] – Gear trains – Speed ratio, train value – Parallel axis gear trains – Epicyclic Gear Trains – Differentials – Automobile gear box.

5. FRICTION

Surface contacts – Sliding and Rolling friction – Friction drives – Friction in screw threads – Bearings and lubrication – Friction clutches – Belt and rope drives – Friction aspects in brakes – Friction in vehicle propulsion and braking. 

TEXT BOOK

1. Ambekar A.G, “Mechanism and Machine Theory” Prentice Hall of India, New Delhi, 2007.

2. Shigley J.E. ,Pennock G.R.and Uicker.J.J., ‘Theory of Machines and Mechanisms’, Oxford University Press,2003.

REFERENCE

1. Thomas Bevan, ‘Theory of Machines’, CBS Publishers and Distributors, 1984.

2. Ghosh.A, and A.K.Mallick, ‘Theory of Mechanisms and Machines’, Affiliated East-West Pvt. Ltd., New Delhi, 1988.

3. Rao.J.S. and Dukkipati.R.V. ‘Mechanisms and Machine Theory’, Wiley- Eastern Ltd., New Delhi, 1992.

4. John Hannah and Stephens R.C., ‘Mechanics of Machines’, Viva Low-Prices Student Edition, 1999.

5. V.Ramamurthi, Mechanics of Machines, Narosa Publishing House, 2002.

6. Robert L.Norton, Design of Machinery, McGraw-Hill, 2004.

CE9211 FLUID MECHANICS AND MACHINERY

CE9211 FLUID MECHANICS AND MACHINERY

I. INTRODUCTION

Units & Dimensions. Properties of fluids – Specific gravity, specific weight, viscosity, compressibility, vapour pressure and gas laws – capillarity and surface tension. Flow characteristics: concepts of system and control volume. Application of control volume to continuity equiation, energy equation, momentum equation and moment of momentum equation.

II. FLOW THROUG CIRCULAR CONDUITS

Laminar flow though circular conduits and circular annuli. Boundary layer concepts. Boundary layer thickness. Hydraulic and energy gradient. Darcy – Weisbach equaition. Friction factor and Moody diagram. Commercial pipes. Minor losses. Flow though pipes in series and in parallel.

III. DIMENSIONAL ANALYSIS

Dimension and units: Buckingham’s L theorem. Discussion on dimensionless parameters. Models and similitude. Applications of dimensionless parameters.

IV. ROTO DYNAMIC MACHINES

Homologus units. Specific speed. Elementary cascade theory. Theory of turbo machines. Euler’s equation. Hydraulic efficiency. Velocity components at the entry and exit of the rotor. Velocity triangle for single stage radial flow and axial flow machines. Centrifugal pumps, turbines, performance curves for pumps and turbines. 

V. POSITIVE DISPLACEMENT MACHINES

Recriprocating pumps, Indicator diagrams, Work saved by air vessels. Rotory pumps. Classification. Working and performance curves.

TEXT BOOKS:

1. Streeter. V. L., and Wylie, E.B., Fluid Mechanics, McGraw Hill, 1983.

2. Rathakrishnan. E, Fluid Mechanics, Prentice Hall of India (II Ed.), 2007.

REFERENCES:

1. Ramamritham. S, Fluid Mechanics, Hydraulics and Fluid Machines, Dhanpat Rai & Sons, Delhi, 1988.

2. Kumar. K.L., Engineering Fluid Mechanics (VII Ed.) Eurasia Publishing House (P) Ltd., New Delhi, 1995.

3. Bansal, R.K., Fluid Mechanics and Hydraulics Machines, Laxmi Publications (P) Ltd., New Delhi.