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SCHEME & SYLLABUS 2013-2017 BATCH III Semester Mechanical Engineering

No. Code No. Course Title Hours per week Credits L T P

1. 13MA201 Applied Mathematics 5 0 0 5

2 13ME202 Material Science and Metallurgy 4 0 0 4

3 13ME203 Engineering Thermodynamics 4 0 0 4

4 13ME204 Mechanics of Solids 4 0 0 4

5 13ME205 Metal Casting and Joining Processes 4 0 0 4

6 13ME206 Machine Drawing 0 0 2 1

7 13ME207 Material Characterization and Testing Laboratory

0 0 2 1

8 13ME208 Metal Casting and Welding Laboratory 0 0 2 1

9 13ME209 Special Topic 2 0 0 2

Total 23 0 06 26

IV Semester Mechanical Engineering

No. Code No. Course Title Hours per week

Credits L T P

1. 12MA251 Linear Algebra 5 0 0 5

2. 13ME252 Mechanics of Fluids 4 0 0 4

3. 13ME253 Metal Cutting and Machining Processes 4 0 0 4

4. 13ME254 Measurement Science and Engineering 4 0 0 4

5. 13ME255 Engineering Dynamics 4 0 0 4

6. 13ME256 Machine Shop 0 0 2 1

7. 13ME257 Measurements and Metrology Laboratory 0 0 2 1

8. 13ME258 Computer Aided Machine Drawing 0 0 2 1

9 13ME259 Special Topic 2 0 0 2

Total 23 0 06 26

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13ME 202 -MATERIALS SCIENCE & METALLURGY (4-0-0-4)

Overall learning objectives of the course Demonstrate the understanding of the basic concepts of crystal structure and atomic arrangement of metals and also an ability to index planes and directions cubic and hexagonal crystal structures

Demonstrate the understanding of lattice imperfections in metals & alloys and an ability to visualize diffusion of atoms in lattices Demonstrate the understanding of mechanical behavior of metals and different types of mechanical testing Demonstrate the understanding of fracture behavior of metals Demonstrate the understanding of solid and liquid phase reactions and phase diagrams Demonstrate the understanding of solid and liquid phase reactions under equilibrium and non- equilibrium conditions Demonstrate the understanding of Heat treatment of steels Demonstrate the understanding of ferrous metals for engineering applications Demonstrate the understanding of non-ferrous metals for engineering applications

UNIT – I 10 Hours Lattice, Unit cell, Basis and crystal structure: Fundamental concepts of Unit cell space lattice, Bravais Lattices, Unit cells for cubic structures and HCP. Calculations of radius, co-ordination No. and Atomic Packing Factor for different cubic structures & HCP, Miller indices of planes and directions in cubic and hexagonal structures, Numerical problems Crystal imperfections Point, line & surface imperfections in crystalline solids Atomic diffusion Applications of Diffusion, diffusion mechanism, Fick’s laws of diffusion, Factors affecting diffusion, Numerical problems

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UNIT – II 10 Hours Mechanical properties and behavior: Types of deformations, Tensile test, Properties obtained from Tensile test, true stress & true strain, Plastic deformation - slip and twinning, Hardness of Materials – Rockwell, Vickers & Brinell Hardness testing, Strain rate effects and Impact testing, Numerical problems Fracture - ductile & brittle fracture, Fracture Mechanics and its importance, Griffith’s criterion of Brittle Fracture Fatigue Fatigue tests, S-N curves, Factors affecting fatigue life Creep The creep curves, Creep properties, stress relaxation, mechanism of creep, creep resistant materials, Larson Miller Parameter, Numerical problems UNIT – III 10 Hours Solid solutions and Phase equilibrium: Phases and Phase diagram, solid solutions, Rules governing formation of solid solutions, Phase diagrams – Basic terms, phase rule, cooling curves, construction of Phase diagrams, interpretation of equilibrium diagrams, Types of Phase diagrams, Lever rule, Numerical problems Principles of solidification Technological significance, Nucleation, Applications of controlled nucleation, Growth mechanisms, Solidification time and dentrite size, Solidification defects, Cast structure, Numerical problems UNIT – IV 11 Hours Iron carbon equilibrium diagram: Phases in the Fe-C system, Invariant reactions, critical temperatures, Microstructures of slowly cooled steels, effect of alloying elements on the Fe-C diagram, ferrite and austenite stabilizers. The TTT diagram, drawing of TTT diagram, TTT diagram for hypo & hyper eutectoid steels, effect of alloying elements on CCT diagram Heat Treatment of steels Annealing and its types, Normalizing, Hardening, Tempering, Martempering, Austempering, Surface hardening like carburizing, cyaniding, nitriding, and induction hardening, Harneability of steels Hardenability concept – Jominy End Quench test, effect of alloying elements UNIT – V 11 Hours Engineering alloys (Ferrous): Properties and uses of Carbon steels, Steel designation as per AISI designation; Properties and uses of Cast Irons – gray Cast Iron, White Cast Iron, Malleable Cast Iron & Ductile Iron and Austempered Ductile Iron Engineering alloys (Non - Ferrous): Properties and uses of light alloys - Al, Mg and Ti alloys; Properties and uses of Copper and its alloys Ceramic and Polymeric materials: Applications of ceramics, properties of ceramics, Sintered ceramics ; Classification of polymers, addition and condensation polymerization, Typical thermoplastics and thermosetting polymers

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Text Books: The Science and Engineering of Materials for Science and Engineering, 5th edition Donald R Askeland and Pradeep, P. Phule, Thomson – Engineering (2006) Reference Books:

Materials Science And Engineering- A First Course, by V. Raghavan, Published by Prentice Hall of India Materials Science and Engineering: An Introduction, Sixth Edition by William D. Callister, Jr.

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13ME 203: ENGINEERING THERMODYNAMICS (4 – 0 – 0 - 4)

Course Objectives

To Appreciate the role of thermodynamics in engineering and society. To Understand the importance of thermodynamic concepts, thermodynamic properties and thermodynamic definition of work. To Understand the various characteristics of work and heat. To Understand the first law of thermodynamics and know how to use it to solve engineering problems. To Understand the Second law of thermodynamics and know how to use it to solve engineering problems. To Understand the concepts of Available energy and Availability as applied to closed and open systems. To understand the use of charts, tables and equations as applied to properties of pure substances and gases.

Course Outcomes: At the end of the course the student should be able to 1. Obtain thermodynamic data necessary to solve thermodynamic problems and when

necessary use approximate expressions, equations of state and/or tabulated property tables or charts.

2. Write the first law of thermodynamics in its appropriate form both for closed system (control mass) and open system (control volume) problems.

3. Make appropriate assumptions when applying I law to a “real world” problem. 4. Write the second law of thermodynamics in its appropriate forms both for closed system

and open system problems. 5. Apply the second law to determine the performance limitations of a given thermodynamic

system. 6. Apply thermodynamic concepts to describe the performance of individual components of a

system (e.g. power plant, a jet engine etc) and relate that information to the overall performance of the entire system.

7. Physically interpret and apply integrals and derivatives to solve thermodynamic problems. 8. Translate complex word problems into an orderly and logical problem solving approach. UNIT – I 10 Hours 1.Introduction: Definition of engineering thermodynamics; examples of systems like steam power plant, IC engines, domestic refrigerator, room air conditioner, and fuel cells which require the knowledge of thermodynamics for their performance evaluation; description of matter – macroscopic description and microscopic description; thermodynamic system, surroundings and the system boundary; closed system, open system (control volume) and isolated system; thermodynamic properties, processes and cycles; homogeneous and heterogeneous systems; thermodynamic equilibrium; quasi-static process; pure-substance; concepts of continuum.

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2.Temperature: Thermal equilibrium; Zeroth law of thermodynamics; concept of temperature; measurement of temperature – thermometric property, scale of temperature, reference points, comparison of different types of thermometers; ideal gas; gas thermometers; ideal gas temperature; Celsius temperature scale; illustrative examples. 3.Work and Heat Transfer: Mechanics definition of work and its limitations for analyzing thermodynamic system; thermodynamics definition of work; characteristics of work transfer; classification of work; general expression for mechanical displacement work (pdV work); expressions for mechanical displacement work for different quasi static processes; expressions for other forms of work; net work transfer between a system and its surroundings; definition of heat transfer; characteristics of heat transfer; illustrative examples.

UNIT – II 10 Hours 4. First Law of Thermodynamics: First law for a closed system undergoing a cyclic process; first law for a closed system undergoing a non-cyclic process; energy – a property of a system; different forms of stored energy; definition of a pure substance; two-property rule for a pure substance; specific heat at constant pressure and specific heat at constant volume; first law for an isolated system; perpetual mot ion machine of first kind; illustrative examples. 5. First Law for an open system (control volume): control volume; law of conservation of mass and first law equation for a steady state steady flow system; application of steady flow equation to systems like turbines, compressors/pumps, heat exchangers, nozzles/diffusers, throttle valve; comparison of steady flow energy equation with Euler and Bernoulli equations; first law equation for unsteady flow open systems; illustrative examples. UNIT – III 10 Hours 6. Second Law of Thermodynamics: Limitations of first law; qualitative differences between heat and work; Cyclic heat engine; energy reservoirs; performance of a direct heat engine and Kelvin-Planck statement of second law; reversed heat engine- refrigerator and heat pump; coefficient of performance for a refrigerator and for a heat pump; Clausius statement of second law; equivalence between the two statements; reversibility and irreversibility- definition of a reversible heat engine; corollaries of second law of thermodynamics; reversibility and irreversibility as applied to a non-cyclic process; causes which make a process irreversible and types of irreversibility; Kelvin’s absolute scale of temperature; illustrative examples.

UNIT – IV 12 Hours 7. Entropy: Introduction; Clausius inequality(or Clausius theorem); Entropy as a property of a system; Temperature –entropy plot and its usefulness in analyzing thermodynamic processes; entropy change for an irreversible process; principle of increase of entropy ;Carnot cycle on T-s diagram and expression for Carnot efficiency; applications of principle of increase of entropy – heat transfer through a finite temperature difference, mixing of two fluids, maximum work obtainable from two identical bodies at two different temperatures and maximum work obtainable from a finite body and a thermal energy reservoir; entropy generation in closed and open systems; Tds relations and their significance(first and second law combined), Isentropic process; illustrative examples.

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8.Available Energy, Availability & Irreversibility: classification of energy- high grade energy and low grade energy; concepts of available energy and unavailable energy; quality of energy; available energy of closed and open systems; useful work; dead state; availability; availability analysis for closed and open systems; second law efficiency; illustrative examples. UNIT – V 10 Hours 8. Properties of Gases and Gas Mixtures: Avogadro’s law; equation of state for a gas; ideal gas; equations of state; properties of mixtures of gases- Dalton’s law and Gibb’s law- internal energy, enthalpy , specific heats and entropy of a mixture of gases; illustrative examples. 9. Properties of Pure Substances: p-v and p-T diagrams for a pure substance; T-s and h-s diagrams for a pure substance; quality/dryness fraction ; steam tables and charts for thermodynamic properties; measurement of steam quality; illustrative examples.

Text Book: “Engineering Thermodynamics”, P.K.Nag, TMH publishing Co. ltd., 2008 Reference Book: “ Thermodynamics - An Engineering Approach” , Yunus Cengel & Michael Boles, TMH Publishing Co. Ltd, 2008.

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13ME 204 – MECHANICS OF SOLIDS (4 – 0 – 0-4) Learning Objectives:

To enable students to acquire fundamental understanding of the behavior of components used in machines To develop skills to help them model and analyze the behavior of machine components subjected to various loading and support conditions based on equilibrium principles To introduce the concepts of stress and strain in materials and to understand various terminologies associated such as tensile strength, factor of safety, yield stress and many more. To understand the concepts of shear force/ bending moment deflection in beams. To understand the concepts of torsion and its application to design of shafts. To understand the concept of internal fluid pressure and its effects in the design of pressure vessels. To understand the concept of column loading and its effect of buckling. Course outcomes Upon successful completion of the course, the student will be able to Model and analyze the behavior of machine components subjected to various loading and support conditions based on principles of equilibrium. Understand and apply the concept of stress and strain to analyze and design machine parts under axial load, shear load, bending and torsional moments. To solve problems involving practical situations by evaluating stress and strain relationships. To analyze and solve problems on beams, shafts and columns.

UNIT – I 10 Hours Axial Loading: Normal Stress, Shearing Stress, shearing strain, Allowable load, Allowable stress, Factor of safety, Normal strain under axial loading, stress-strain diagram, True stress and True strain, Hooke’s law, modulus of elasticity, Deformation of members under axial loading, Numerical problems, statically indeterminate problems, Multiaxial loading-Generalised Hooke’s law, Dilatation-Bulk modulus, Shearing Strain, Relation among E, N and G, Numerical problems.

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Thermal Stresses: Problems involving temperature changes,

UNIT – II 10 Hours Transformation of Stress and strain: Transformation of plane stress, Principal Stresses, Maximum Shearing Stress, Mohr’s Circle for Plane Stress, Numerical problems. Pressure Vessels: Stresses in Thin and Thick Walled Pressure Vessels, Numerical problems.

UNIT – III 12 Hours Analysis and Design of Beams For Bending: Shear and Bending-Moment Diagrams, Standard cases, Numerical problems. Pure Bending: Introduction, Deformation in a Symmetric Member in pure Bending, Stresses and Deformations in the Elastic Range, Numerical problems.

UNIT – IV 10 Hours Shearing Stress in Beams: Introduction, Determining shearing stress in a beam, shear stress distribution in typical beam cross sections ( Rectangular, T, I sections) Deflection of Beams: Introduction, Deformation of a Beam under Transverse Loading, Equation of the Elastic Curve, Using Singularity Functions to Determine the Slope and Deflection of a Beam, Area moment method, Numerical problems.

UNIT – V 10 Hours Columns: Introduction, Stability of Structures, Euler’s Formula for Pin-Ended Columns, Extension of Euler’s Formula to Columns with Other End Conditions, Empirical formula, Numerical problems. Torsion: Introduction, Deformations in a Circular Shaft, Stresses in the Elastic Range, Design of Transmission Shafts, Numerical problems. Energy Methods: Introduction, Strain Energy, Strain Energy density, Elastic strain, Energy for normal stresses, elastic strain energy for shearing stresses, Numerical Problems.

Text Book: “Mechanics of Materials (In SI Units)”, Ferdinand P Beer, E Russell Johnston, Jr John T DeWolf 3rd Edition, TATA McGraw Hill. (Ch. Nos. 1,2,3,4,5,6,7,9,10,11), Special Indian Edition, 2009.

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Reference Books: “Strength of Materials”, S Ramamrutham, Dhanpat Rai Publications Reprint 2005. “Strength of Materials”, I.B. Prasad Khanna Publishers, 8th Edition 1989.

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13ME 205 – METAL CASTING AND JOINING PROCESSES (4-0-0-4)

Overall learning objectives of the course

Demonstrate the understanding of the basic concepts of Foundry practices (both

traditional and advanced)

Demonstrate the understanding of the basic concepts of joining of materials through

different methods

Demonstrate the understanding of how materials solidify from molten stage in both

casting

Demonstrate the understanding of fracture behavior of metals

Understand the factors and variables that influence casting and welding

UNIT – I 12 Hours

Introduction to Manufacturing: Manufacturing Process, Principles of casting, steps

involved in casting, advantages and applications of metal casting, Foundry – Types,

different sections of a foundry.

Patterns and Pattern Making: Introduction to patterns, Difference between a pattern

and casting, functions of a pattern, pattern materials, types of patterns and pattern

allowances.

Molding and Core Sands: Mould materials, Refractory Sands, moulding sands,

properties of moulding sands, types of moulding sand, core sands.

Core and Mould Making: Functions of a core, characteristics of a core, core making

procedures, types of cores, cores applications. Mould characteristics, types of

moulds, moulding methods, steps involved in making a mould, Moulding machines.

UNIT – II 12 Hours

Principles of Gating: Gating System, Principles of gating system, Pouring cups and

basins, sprues, gates characteristics, types of gates, design of gating system – objectives

achieved from a good design, defects due to improper gating, turbulence in gating,

metal flow rate and velocity, design criteria for pouring basin, design for sprue, pouring

time, design of runner and gates.

Principles of Risering: Introduction, Functions of a riser, types of risers, riser and

directional solidification, increasing riser efficiency, chills, padding, riser shape, riser

size, riser location and riser feeding distance.

UNIT – III 10 Hours Melting furnaces and Practices: Introduction, types of furnaces, crucible furnaces –

coke fired furnaces, oil and gas fired furnaces and oil fired tilting furnace. Cupola,

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cupola design, preparation of cupola, charging the cupola, cupola zones and

computing the cupola metal charge and some simple problems. Hot blast cupola.

Uses of flux, electric furnaces, reverberatory furnaces.

Ladle Metallurgy: Introduction, Special treatment of melts – Refining, gases in metals

– Degassing, principle and different degassing techniques, gas scavenging –

desulphurization, liquid metal cleanliness, inoculation, ladle practice achievements.

UNIT – IV 08 Hours Special casting methods:Introduction. Permanent mould casting, slush casting, die

casting, vacuum die casting, centrifugal casting – de Lavand process, semi-centrifugal

casting, centrifuging, investment casting, carbon di oxide moulding, continuous casting,

shell moulding, plaster mould casting, anitioch process and squeeze casting.

UNIT – V 10 Hours

Welding and allied processes: Introduction to welding. Classification of welding

processes, concept of weld. Resistance welding, resistance spot welding, resistance butt

welding, resistance flash welding, resistance seam welding, projection welding.

Gas welding – oxy-acetylene welding and cutting equipments – gas cylinders. Electric

arc welding, metal arc welding, arc blow, use of AC and DC for welding, comparison

between AC and DC for welding, arc welding electrodes.

Special welding processes: Inert gas arc welding, inert gas – tungsten arc (TIG)

welding, inert gas metal (MIG) arc welding, submerged arc welding, electro slag

welding, electro gas welding, stud arc welding, plasma arc welding, atomic hydrogen

welding, thermit welding

Text Book:

1.“A Text book of Foundry Technology” by O P Khanna, Dhanpat Rai Publications,

Edition 1996.

2. “A course in Workshop Technology, Volume – I, Manufacturing processes” by B.S.

Raghuwanshi, Dhanpat Rai & Co. (P) Ltd publishers. 2005

Reference Book:

“Principles of Metal Casting”, second edition, by, Richard W. Heine, Carl R. Loper Jr

and Philip C, Rosenthal, Tata McGraw Hill Publication.

“Welding and Welding Technology”, by Richard L.Little, 37th

Reprint, 2009, Tata

McGraw Hill Publication.

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13ME- 206: MACHINE DRAWING (1 – 0 – 2 - 1) UNIT – I Isometric Projection: Isometric Projection, Isometric Scale, Isometric, and Non-isometric lines, Projections of Regular polygons, isometric projection of solids, Combination of solids. UNIT – II Section of Solids: Sectioning, Projection of sectioning, Sectional Lines and Hatching, Types of section Planes, True Shape of Sections of Cubes, Prisms, Pyramids, Cylinders and Cones. Orthographic View of Machine Parts UNIT – III Three views of ISO threaded Hexagonal Bolt, Nut, and Washer Rivets and Riveted Joints – Single Riveted, Double Riveted (Chain Riveting only) Lap joint and Butt joint (Single and Double Cover Plate) UNIT – IV Assembly Drawings

Flanged Coupling (Unprotected) Knuckle Joint Universal Coupling Screw Jack Plummer Block

Reference Books:

Machine Drawing by K.R.Gopalakrishna, 5th edition, Subhash Publications, 2003

A text book of Engineering Graphics by K.R.Goplakrishna, Subhas Publications, 2003

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13ME207 – MATERIALS CHARACTERIZATION & TESTING LABORATORY (0-0-2-1)

Tensile, shear and compression tests of metallic specimens using Universal Testing Machine. Izod and charpy tests on metal specimens. To study wear characteristics of ferrous and non-ferrous materials for different parameters. Torsion tests Brinell, Rockwell and Vickers’ Hardness test. Preparation of specimen for Metallographic examination and Identification of microstructures of different Engineering materials. Bending test on metallic and nonmetallic specimens. Non-destructive test experiments like, Ultrasonic flaw detection, Magnetic crack detection, Dye penetration testing, to study the defects of Cast and Welded specimens , Fatigue test.

Reference Material Lab Manual Prepared by the department

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13ME 208: METAL CASTING AND WELDING LABORATORY (0-0-2-1) List of Experiments: Part -A : Testing of Moulding and Core sand

1. Compression strength test] 2. Permeability test 3. Shear strength test 4. Tensile strength test 5. Grain fineness number 6. Clay content test 7. Core Hardness and Mould hardness tests

Part -B : Foundry Practices

8. Use of foundry tools and other equipment 9. Foundry model with split pattern 10. Foundry model with loose piece pattern 11. Foundry model (Hand Cut Model) 12. Preparation of one casting using Aluminium (demonstration)

Part - C: Welding Practice 13. Use of welding tools and other equipment 14. Welding Model 1 15. Welding Model 2 16. Soldering and Sheet metal work.

Part – D:

17. Cold forging model – 1 18. Hot forging model – 2 19. Hot forging model – 3. .

Reference Material Lab Manual prepared by the Department.

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13ME252: MECHANICS OF FLUIDS (4-0-0-4) Learning Objectives of the Course:

1. To understand the definition of a fluid, the basic properties of fluids, and solve problems regarding the same.

2. To understand the concept of pressure, fluid pressure measurement and measuring devices, Pascal’s law, forces acting on bodies submerged in static fluids and stability criterion for floating bodies and solve problems regarding the same

3. To understand the principles of fluid kinematics, plots of fluid flow data, kinematic description of fluids and Reynold’s transport theorem and solve problems regarding the same.

4. To understand mass, momentum and energy conservation in fluids. Bernoulli’s equation, its application and significance and solve problems regarding the same.

5. To understand flow through ducts, Reynold’s number and other dimensionless numbers, boundary layer theory, turbulent and laminar flows and solve problems regarding the same.

6. To understand the principles of flow measurement, how they are applied to various devices and solve problems regarding the same.

7. To understand the principles of flow over bodies, concept of drag and lift and solve problems regarding the same.

UNIT – I 08 Hours Fluids Properties: Introduction; The No Slip Condition; Classification of fluid flows; Continuum; Density and Specific Gravity; Coefficient of Compressibility; Viscosity; Surface Tension and Capillary Effect; Problems. Fluid Statics: Pressure; The Manometer; The Barometer and Atmospheric Pressure; Introduction to Fluid Statics; Hydrostatic Forces on Submerged Plane Surfaces; Hydrostatic Forces on Submerged Curved Surfaces; Buoyancy and Stability.

UNIT – II 12 Hours Fluid Kinematics: Lagrangian and Eulerian Descriptions; Fundamentals of Flow Visualization; Plots of fluid flow data; Other Kinematic descriptions – Types of Motion, Vorticity and Rotationality; Comparison of two circular flows; The Reynolds Transport Theorem. UNIT – III 10 Hours Mass, Bernoulli And Energy Equations: Introduction; Conservation of Mass; Mechanical energy and Efficiency; The Bernoulli equation; Applications of Bernoulli Equation. Momentum Analysis Of Flow Systems: Newton’s Laws and Conservation of Momentum; Choosing a Control Volume; Forces Acting on a Control Volume; The Linear Momentum Equation.

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UNIT – IV 10 Hours Flow In Pipes: Laminar and Turbulent Flows: The Entrance Region; Laminar Flow in Pipes; Turbulent Flow in Pipes; Minor Losses; Piping Networks and Pump Selection; Flow rate and Velocity Measurement – Pitot and Pitot-Static probes, Orifice, Venturi and Nozzle Meters. UNIT – V 12 Hours Dimensional Analysis: Dimensions and Units; Dimensional homogeneity; Dimensional Analysis and Similarity; The Method of Repeating Variables and Buckingham π Theorem; Experimental Testing and Incomplete Similarity. Flow Over Bodies: Drag And Lift: Drag and Lift; Friction and Pressure Drag; Drag Coefficient of Common Geometries; Parallel Flow Over Flat Plates; Flow Over Cylinders and Spheres; Lift. Text Book: “Fluid Mechanics – Fundamental and Applications”, Yunus A.Cengel, John M.Cimbala, Tata McGraw Hill Publishing co. Ltd. 2006. (Ch. nos. 1,2,3,4,5,6,7,8,9,10,11,)

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13ME253 – METAL CUTTING AND MACHINING PROCESSES (4-0-0-4)

Overall learning objectives of the course

Demonstrate the understanding of the basic concepts of Metal removal methods

Demonstrate the understanding of different Machine tools

Demonstrate the understanding of indexing mechanism

Understand the factors and variables that influence metal cutting

UNIT – I 12 Hours

Fundamentals of Metal Cutting: Introduction to Metal Cutting, Basic Elements of

Machining, Orthogonal and Oblique Cutting, Classification of Cutting Tools, Principal

Angles of Single Point Tools, Tool Signature, Reference Planes, Tool Geometry in

Coordinate System, Tool Geometry in Orthogonal System, Inter-Relationship between

ASA and ORS Systems, Chip Formation, Types of Chips, Chip Thickness Ratio, Chip

Control and Chip Breakers, Velocity Relationships, Force Relationship in Orthogonal

Cutting, Forces on a Single Point Tool in Turning, Stress and Strain in the Chip, Work

Done in Cutting, Horse Power Calculation, Earnst-Merchant Metal Cutting Theorem,

Cutting Speed, Feed and Depth of Cut, Sources of Heat in Metal Cutting, Numerical

Problems.

UNIT – II 12 Hours

Cutting Tools for Machining: Tool Failure, Mechanism of Wear, Tool Life, Factors

Affecting Tool Life, Characteristics of Cutting Tool Materials, Types of Cutting Tool

Materials, Machinability, Machinability Index. Economics of metal cutting, relationship

among cutting speed, production rate and cost, calculation of cutting speed and tool life

for minimum cost and maximum production. Measurement of cutting forces, types of

tool dynamometers.

UNIT – III 10 Hours

Machine Tools: Introduction to Lathe, Taper Turning Calculations, Screw Cutting

Calculations, Operations on Lathe, Speed, Feed and Depth of Cut Calculations for Lathe

Operations, Estimating Machining Time, Introduction to Drilling, Tools for Drilling,

Speed, Feed and Depth of Cut Calculations for Drilling Operations, Estimating

Machining Time, Introduction to Reaming, Introduction to Shaper, Quick Return

Mechanisms, Cutting Speed, Feed and Depth of Cut Calculations for Shaping,

Estimating Machining Time, Introduction to Milling, Cutting Speed and Feed for

Milling, Estimating Machining Time, Indexing.

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UNIT – IV 08 Hours

Various metal removal operations: Broaching – Process, Machines, Techniques.,

Grinding process – Introduction, Grinding Machines, Speed, feed and depth of cut and

cutting time calculations for grinding, Grinding wheels. Honing, Lapping, Super

finishing and Burnishing – Machines, Methods, machining time calculations for

broaching, buffing, tumbling.

UNIT – V 10 Hours

Non Traditional Machining: Process, Applications, Advantages and Disadvantages of

Electrical Discharge Machining, Electrochemical machining, Ultrasonic machining,

Abrasive Jet machining, Laser Beam Machining, water jet machining, Ion beam

machining, Electron beam machining, chemical machining, Plasma Arc machining.

Text Book:

WORKSHOP TECHNOLOGY, Volume II (Machine Tools) by B.S. Raghuwanshi,

Dhanpat Rai & Co. (P) Ltd. 2003 Edition

Reference Book PRODUCTION TECHNOLOGY, HMT. 1980

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13ME254 MEASUREMENT SCIENCE AND ENGINEERING (4 Credits)

Learning Outcomes: To appreciate the process of determining the value of a parameter

of interest , irrespective of its size, decide upon the method of measurement for a given

situation, know the process of calibration of instruments, role of standards for universal

acceptability, understanding construction, working and advantages of various

measurement methods for varied parameters related to engineering in general and

mechanical stream in particular.

Unit I Introduction to Measurements-- Definition and significance of measurement, fundamental methods, Generalized measuring system, types of input quantities,,calibration, accuracy, precision, sensitivity, linearity, loading effect, errors in measurement, classification of errors. 2 hrs Standards of Length-- International prototype meter, Imperial standard yard, Wave Length standard, subdivision of standards, line and end standards, transfer from line standard to end standard, calibration of end bars, Slip gauges-Wringing phenomena, Indian Standards (M-87, M-112). 2 hrs Transducers and Intermediate modifying devices-- Transfer efficiency, primary and secondary transducers-mechanical, electrical and electronic transducers, advantages of each type transducers. Mechanical systems-inherent problems, electrical intermediate modifying devices, input circuitry, ballast circuit, electro, amplifiers and telemetry. 4 hrs Terminating Devices-- Mechanical counters, Cathode Ray Oscilloscope, Oscillographs , X- Y Plotter. 2 hrs

Unit II Measurement of Strain, Force and Torque-- Strain gauges, Methods of strain measurement. Force measurement--Analytical balance, Multilever system , Proving ring, Torque measurement- Pony brake and hydraulic dynamometer. 5 hrs

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Pressure Measurement and Temperature Measurement-- Elastic diaphragms, Bourdon tube, Bridgeman gauge, McLeod gauge, Pirani gauge. Resistance thermometers, thermocouple, laws of thermocouple, materials used for thermocouple construction. Pyrometers-Total radiation pyrometer, Optical Pyrometer. 5 hrs

Unit III Fundamentals of Geometrical Dimensioning and Tolerancing systems-- Definition of tolerance, Specification in assembly, Principle of inter changeability and selective assembly limits of size, Indian standards, concept of limits of size and tolerances, compound tolerances, accumulation. of tolerances, definition of fits, types of fits and their designation (IS 919), geometrical dimensioning (ASME)—definition, symbols, modifiers and datums, hole basis system, shaft basis of system, classification of gauges, Taylor principle of limit gauges, Wear allowance on gauges. Types of Gauges - plain plug gauge, ring gauge, snap gauge, progressive gauge, gauge materials. 10 hrs

Unit IV Comparators-- Introduction, Characteristics, classification of comparators, Mechanical comparators - Johnson Mikrokator, Sigma Comparator, Dial indicator. Optical Comparators - principles, Zeiss ultra optimeter, Electric and Electronic Comparators - principles, LVDT; Pneumatic Comparators , back pressure gauges, Solex air gauge. 10 hrs

Unit V Form measurements-- Angular measurements--Bevel protractor, Sine bar, Sine center, Angle gauges, Clinometers, Interferometer—Michelson’s interferometer, Autocollimator, Optical flats. Screw thread and Gear measurements--Terminology of screw threads, measurement of major diameter, minor diameter, pitch, angle and effective diameter of screw threads by 2-wire and 3-wire methods, best size wire, Tool makers microscope, Profile projector, Gear terminology—Gear tooth vernier caliper. 10 hrs

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12ME255: ENGINEERING DYNAMICS (4-0-0-4) Leaning Objectives: 1. Understand concepts of mass moment of inertia 2. Analysis of motion using rectangular co-ordinates, normal and tangential co-ordinates,

polar co-ordinates. 3. Application of Newton’s laws to particles and rigid bodies. 4. Concepts of momentum and energy 5. Velocity and acceleration analysis of four bar mechanism and slider crank mechanism. UNIT – I 08 Hours Mass Moment of Inertia: Mass moment of Inertia about an axis, Parallel axis theorem, perpendicular axes theorem. Simple Problems Kinematics of particles : Rectilinear motion, Numerical problems. UNIT – II 12 Hours Kinematics of particles: Plane curvilinear motion, rectangular co-ordinates, normal and tangential coordinates, polar coordinates, relative motion, constrained motion of connecting particles, Numerical problems. UNIT – III 12 Hours Kinetics of Particles: Force- mass –acceleration, Newton’s second law, equations of motions, Rectilinear motion, curvilinear motion, work energy equation, impulse and momentum, conservation of momentum. UNIT – IV 10 Hours Plane Kinematics of Rigid bodies: Introduction, Rotation, Absolute Motion, Relative velocity, Relative acceleration.

UNIT – V

Gears 06 hours Classification, Terminology, Law of gearing, Forms of teeth, Path and Arc of contact,

Number of pairs of teeth in contact, Interference in Involute gears, Minimum number of

teeth, Under cutting.

Gear Trains

04 hours Simple and Compound Gear Trains. Epicyclic Gear Trains. Velocity ratio of

Epicyclic Gear Trains. Design Calculations for Epicyclic gear train. Differentials. Reference Books : 1. “Engineering Mechanics – Dynamics”, L.Meriam & L G Kraige, Wiley India, 7th Edition, “Theory of Machines” , S.S.Ratttan, Tata McGrawhill Publishing Co. Ltd., Third Reprint, 2006

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13ME256 MACHINE SHOP (0-0-2-1) List of experiments:

PART-A : Preparation of Models on Lathe Machine 1. MODEL 1 – Plain Turning 2. MODEL 2 – Taper Turning 3. MODEL 3 – Step Turning, Knurling 4. MODEL 4 – Thread Cutting, Knurling 5. MODEL 5 – Facing, Chamfering 6. MODEL 6 – Drilling using Lathe Machine 7. MODEL 7 – Eccentric turning PART-B : Preparation of Models on Shaping Machine 8. MODEL 8 - Rectangular Block 9. MODEL 9 - Cutting of V-groove 10. MODEL 10 - Rectangular groove PART – C : Preparation of Models on Milling Machine 11. MODEL 11 - Spur Gear Teeth cutting Reference Material Lab Manual Prepared by the department

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13ME257 MEASUREMENTS & METROLOGY LABORATORY (0-0-2-1) List of experiments:

1. Calibration of Pressure Gauge (Foot Pump Type) 2. Calibration of Thermocouples (J & K -Type) 3. Calibration of Linear Variable Differential Transformer (LVDT) 4. Calibration of Load Cell 5. Calibration of Resistance Thermister and Thermometer 6. Calibration of diaphragm type Strain Gauge Pressure Pickup 7. Measurement of screw thread parameters using profile projector 8. Measurement of screw thread parameters using tool makers microscope 9. Measurement of angle of a given specimen using sine bar and sine center 10. Measurement of alignment using autocollimator/roller set 11. Acceptance test using electronic comparator 12. Measurement of gear tooth profile using gear tooth vernier caliper

Reference Material Lab Manual Prepared by the department

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13ME 258 – COMPUTER AIDED MACHINE DRAWING (0 – 0 – 2-1) UNIT – I CAD Packages:

Introduction to CAD Tools Orthographic View of Machine Parts using CAD tool Rivets and Riveted Joints – Single Riveted, Double Riveted (Chain Riveting only) Lap joint, and Butt joint (Single and Double Cover Plates)

UNIT – II Assembly of Couplings:

Solid Muff Coupling Flanged Coupling (protected type) Universal Coupling

UNIT – III Assembly Drawings

Three views of ISO threaded Hexagonal Bolt, Nut, and Washer

Flanged Coupling (Unprotected)

Knuckle Joint

Screw Jack

Plummer Block

Reference Books

Machine Drawing by K.R.Gopalakrishna, 5th edition, Subhash Publications 2003.

A text book of Engineering Graphics by K.R.Goplakrishna, Subhas Publications, 2003