Rajivgandhi Proudyogiki Vishwavidyalaya,Bhopal

RAJIVGANDHI PROUDYOGIKI VISHWAVIDYALAYA,BHOPAL

CURRICULUMFOR

DIPLOMAINMECHANICALENGINEERING

(THIRDSEMESTER)

Scheme:JUL.2008Implementedfromsession2008-09

Undersemestersystem

JULY2008

CURRICULUM DEVELOPMENTCENTREMECHANICAL ENGINEERINGDEPARTMENTBHIMRAO AMBEDKARPOLYTECHNICCOLLEGE,GWALIOR

RATIONALE

Theknowledgeofmaterials,theirpropertiesand behaviorisessentialforpeopleassociatedwithengineeringactivities.Materialstechnology playsanimportantroleindesignandproductionofproductfromthepointofviewofreliabilityandperformanceofproduct.

Thecurriculumofthesubjectemphasizesuponunderstandingthepropertiesandbehaviorofmaterials in correlation withtheirstructureandexternalenvironmentaleffects.Therangeofmaterialsavailableforengineeringuseisquitevast,henceonlythebasicgroupsofmaterialssuchasferrous,non-ferrousnonmetallicmaterialsalongwiththeirgeneralcharacteristic andapplicationhave been stressed.

SCHEME OFSTUDIES

S.
No / Topics / TheoryHrs / Practical Hrs / TotalHrs
1 / Requirement of Engineering materials, mechanical / 03 / - / 03
properties ofmaterials and theirtesting
2 / Structureof solid materials / 02 / - / 02
3 / Solidification of Metal andIngot structure / 04 / - / 04
4 / Equilibrium Phase Diagram and phase transformation. / 06 / - / 06
5 / PracticalMetallographic / 02 / 09 / 11
6 / Iron- carbonEquilibrium system. / 06 / 09 / 15
7 / Heattreatment of steels. / 05 / 18 / 23
8 / Ferrousmetaland Alloys / 05 / 09 / 14
9 / Non- ferrousmetalsandalloys / 05 / - / 05
10 / Non- metallicmaterials / 03 / - / 03
11 / Plastics / 06 / - / 06
12 / Powder metallurgy / 03 / - / 03
13 / Metalpreservations / 06 / - / 06
14 / Moderntrends in material technology. / 04 / - / 04
Total / 60 / 45 / 105
S.NO / COURSE CONTENTS / STUDY
Hrs.
1 / RequirementofEngineeringmaterials,mechanicalpropertiesandtheirtesting:Introductiontoengineeringmaterials,classificationofengineeringmaterialsandtheirproperties.Mechanicalpropertiesofmaterials,destructiveincluding Tensiletest,compressiontest,hardnesstest,impacttestfatiguetest,endurancelimit,bendingtest,sheartestandnon-destructivetestingmethods. / 03
2 / StructureofSolidmaterials:Classificationamorphousandcrystallinestates,unitcellsandcrystalstructure(B.C.C.,F.C.C.andH.C.P) allotropy.Crystalimperfectionand their effects on properties / 02
3 / SolidificationofMetal and ingot structure:Process of nucleationandgraingrowth, ingotsolidification,dendritic and columnarstructure, segregation ofimpurities,grain andgrain boundaries. / 04
4 / EquilibriumPhaseDiagramsandPhaseTransformation:EquilibriumofphaseDiagrams:Plottingofequilibriumdiagrams,interpretation,phaseruleandleverruleanditsapplicationPhasetransformations – Eutectic Eutectoid,Peritecticand Peritectoid / 06
5 / PracticalMetallography:Preparationofspecimen,selectingthespecimen,mountingthespecimen,grinding,polishing,etchingandetchingreagents.Themetallurgicalmicroscope.Useandcareofmicroscope. / 02
6 / Iron- CarbonEqulibriumSystem: Thecompleteiron carbondiagram and its interpretation. The solidificationandcoolingofvariouscarbonsteels,structuresproduced,correlationof mechanicalpropertieswith carboncontent. / 06
S.NO / COURSE CONTENTS / STUDY
Hrs.
7 / HeatTreatmentofSteels:Objectiveofheattreatment,thermalprocesses- annealing, normalizing, hardeningandtempering.
Hardeningprocess:Surfacehardening,flamehardening,casehardeningmethods,theirscope,limitationsandadvantages,quenchingmediumsandtheireffectonhardness,Hardeningdefectsduetoimproperquenching,hardenability,Jominyendquenchtestandinterpretationofitsresults.T.T.T.curvesinterpretationanduse,Isothermalheattreatmentprocesses-martempering,austempering,spherodising and patenting / 05
8 / FerrousMetalsandAlloys:Classification,typesofcastironstheirpropertiesanduses,alloycast-irons,variousalloyingelementsused,theireffectsonpropertiesanduses.Classification,compositionandusesofplaincarbonsteels,effectofimpurities,Alloysteels-variousalloyingelements,theireffectsonpropertiesanduses.Alloysteelclassification.ToolSteel:Typicalcompositions,requirementsoftoolsteels,highspeedsteel,highcarbonsteel.Standardizationofsteels.Designation of steals as per B.I.S.codes. / 05
9 / Non- Ferrous Metals and Alloys: Copper :ItsPropertiesandusesCooper Bases Alloys : Brasses, their classification, composition,properties and uses, designation of copper alloys as per B.I.S.aluminum its propertiesanduses.
AluminumAlloys:Theircomposition,Classification,propertiesanduses.
DesignationofAl-alloysasperB.I.S,Zinc,NickelandleadtheiralloyspropertiesandusesBearingalloys-theircompositionandfield of application. / 05
10 / Non- Metallic Materials : introduction to Ceramic Refractory,RubbersInsulatorsandLubricants / 03
S.NO / COURSE CONTENTS / STUDY
Hrs.
11 / Plastics:characteristics,classification,commonlyusedthermo-settingandthermoplastic-theirpropertiesanduses.Ingredientsforprocessingplastics.
Plastic processingmethods differentmethods. / 06
12 / Powder Metallurgy:-Introductionandapplication.Description ofprocess,manufacture andblendingof metal powder compactingandsintering. / 03
13 / MetalPreservation:Corrosionmeaningvariousmechanismeffectof corrosion, methods ofminimizingcorrosion / 06
14 / ModernTrends inMaterialsEngineering: Newmaterials likeFRP, Composites, synthetic fibers, synthetic wood. Superconductors / 04

LIST OFEXPERIMENTS

S.No. / NAME OFEXPERIMENT / PRACT.
Hrs.
1 / Preparation ofmicro specimen. / 03
2 / Tostudymicrostructuralcharacteristicsofgraycastironwhitecastiron andmalleablecast iron. / 06
3 / To study effect of normalising, annealing on the hardness andmicrostructureof highcarbon steel. / 06
4 / To studythe effect of carbon andtemperatureon hardeningof steel. / 06
5 / To study the effect of temperature on the properties duringtemperingofsteel. / 06
6 / To studythe effect of quenchingmediaon hardness of steel. / 03
7 / To studythe carbonizingandcase hardeningof steel. / 03
8 / Joininghardenabilitytestand its industrial use. / 03
9 / To Studythe microstructure of some important brasses andbornzes. / 03
10 / Toobservethemicrostructuralcharacteristicsandotherpropertiesofvariouscastironsandprepareareportthereof,forindustrialuses. / 06

REFERENCES

1Engineeringphysical Matallurgy-ByProf.YLakhtinMIRPublishers mascow

2A Text Book of MaterialScience And MetallurgybyO.P. Khanna.

3Material ScienceAnd Process.byS. K. Hazia Choudhry

4Mechanical MetallurgybyDieter (TataMcgrawhill)

5Materials For Engineers byM.H.A.Kempsty

6IntroductiontoMaterialScienceAndEngineeringbyK.M.Ralls,T.H.Courtney,JohnWuff( WileyEasternNewDelhi)

7PhysicalMatallurgyPrinciplesbyReadHill(AffiliatedEast-WestPressPvt.Ltd.NewDelhi. )

8EngineeringMetalluragybyR. Higgins ( ENS).

9Materials SciencebyB.S. Narang ( Pub. CBS pub. &Distributions New Delhi)

10PadarthProdyogiki (Hindi) byP.N. Vijayvergiya( DeepakPrakashan,Gwalior) .

RATIONALE

Manufacturingprocessesareadvancingveryfastwiththeexpansionoftechnology.Thiscoursewillprovidebasicinsighttothestudentsregardingmethodsofmanufacturingprocesses.Thecoursegivestheopportunityforexhaustivestudyofmetalcasting,Mechanical workingofmetals, pressworkingandmetaljoining.The abilitiesdevelopedby studyingthiscoursewillbedirectlyhelpfultoallthetechnicians,inwhicheverfield theyare employed.

Lectures: 04 Hrs. per WeekPractical: 04 Hrs. per Week

SCHEME OFSTUDIES

S.No
. / Topics / TheoryHrs / PracticalHrs. / TotalHrs.
1 / Introduction to manufacturingprocesses. / 03 / 04 / 07
2 / Metal casting / 18 / 24 / 42
3 / Mechanical working / 15 / 12 / 27
4 / Press Working / 10 / 08 / 18
5 / Metal joining / 14 / 12 / 26
Total / 60 / 60 / 120

Lectures: 04 Hrs. per WeekPractical: 04 Hrs. per Week

COURSE CONTENTS

S.NO / COURSE CONTENTS / STUDY
Hrs.
1 / IntroductiontoManufacturingProcesses:Definition,classificationofbasicmanufacturingprocessesi,e,mechanicalworking,casting,metaljoiningprocesses,metalcuttingprocess,pressworking.Examplesofeachoftheabovelistedmanufacturingprocesses,factorswhichinfluenceselectionof manufacturingprocess fora particularapplication. / 03
2 / MetalCasting:Introduction,advantagesandlimitationsofcastingasproductionprocess.
PatternMaking:Definitionofpattern,typesofpatternsandtheirdetails,materials,allowances,toolsrequired,colourcodeforpatterns.
Moulding:Definition,mouldingmethodsandtypesofmoulds,mouldingmaterials,mouldingsandanditscomposition,sandproperties,testingparametersofsand,andtheireffects,sandpreparations,sandconditioning,characteristicsanddefects ofmoulds. Function ofrunners, risersandgate.
Cores andcore making, coreboxes.Cleaningofcasting,Specialcastingmethods,need forspecial castingmethods,die casting,centrifugalcasting,investment (lostwax) casting,
castingdefects,causesandanalysis,areaofapplicationofcastingprocess.
Furnaces:Cupola,crucible,pitandelectricarcfurnaces,inductionfurnace , their salientfeatures, safetyaspects. / 18

Lectures: 04 Hrs. per WeekPractical: 04 Hrs. per Week

COURSE CONTENTS

S.NO / COURSE CONTENTS / STUDY
Hrs.
3 / PressWorking:Introductionofpressworkingofmetals,principleof press
working,descriptionofasimplepressworkingunit,pressworkingoperations :
punching,shearing,drawing,bending,slitting,knurling,notching,trimming,piercingetc.
Doubleactionpress,descriptionanditsfieldofapplication,dieandpunch,typesofdies,specificationsofapress,safetyprecautionstobe observedwhile workingon apress. / 15
4 / Mechanical Working:Introduction -hot and cold workingPrinciple ofrecrystalization.
MetalRolling:Principleofmetalrolling,basiccomponentsofasimplerollingprocessequipment.Typesofdeformationduringrolling.rollermaterial,selectionanddesirableproperties,principlesofthreadrolling-descriptionwithsketches,manufactureofseamlesstubes byrolling.types ofrollingmill. Rollingdefects
MetalDrawing:BasicPrincipleofdrawingofmetals,differentiatebetweenthedrawinganddeepdrawingofmetals,principleofwiredrawingandexample.
Extrusion:Definition,Classifythemethodsofextrusion,theirlimitations,advantageanddisadvantage.Tubeextrusion,impactextrusion, application ofextrusion processes. Extrusion defects .
Forging:Typesofforging,Dieforging,differentiatebetweenthecolddieandhotdieforging,advantageofformingbyforging,commondefectsandtheirreasons.Limitationsofforging,pressforging,dropforging,upsetforging,diematerial,applicationsofforgingprocesses in engineering. / 10

Lectures: 04 Hrs. per WeekPractical: 04 Hrs. per Week

COURSE CONTENTS

S.NO / COURSE CONTENTS / STUDY
Hrs.
5 / MetalJoining: Introduction,Classificationofmetaljoiningprocesses
Welding:-classification,Plastic,fusionandforgewelding,Weldabilityof metals, metallurgyofwelding
Resistancewelding:Spot,seam,butt,projection,percussiontechniques.
Gasweldingandgascutting:Principleofoperationandtechnique,gascutting.
ArcWelding:Carbonarc,TIG,MIG,Submergedarc,Atomichydrogen,Eletro-slag,Plasmaarcweldingprocesses,Electrodes-typesandselection,fluxandtheiruses.Specialweldingtechniques-Weldingofdifferentmetals.Defectsinwelds,testing andinspection.Accidentpreventionin gasandarcweldingEquipmentstoolsusedin metalarcwelding,specificationandfunctions.
Soldering, BrazingandAdhesive bonding / 14

LIST OFEXPERIMENTS

S.No. / NAME OFEXPERIMENT / SHOP / PRACT.
Hrs.
1 / Makingasplit/solid patternfromwood.Makingacorebox. / Carpentry
/pattern shop / 06
2 / Temperingof sand, practiceofgreenanddrysandmaking. / pattern shop / 03
3 / Practice ofcore making and baking / Mouldingshop / 03
4 / Practice of openmouldinatwoboxes,usingsplitpatternand solid pattern,Locatingthecore. / Mouldingshop / 03
5 / Demonstrationofmetalmelting inpitfurnace&castingprocess. / foundary / 03
6 / Simpleforming practice(Makingasquarebaroutofagivenround bar, makingof a chiseland bolt) / Blacksmithshop / 03
7 / Practice of upsetting of a round on powerhammer. / Blacksmithshop / 03
8 / Practiceofsheetcuttingwiththehelpofstraightandbentsnips.Makingsmallrectangularprismandcylinder. / Blacksmithshop Tinsmith / 09
9 / Practiceofmakingofwasherofanysizeonaflypress. / Blacksmithshop Tinsmith / 03
10 / Practiceofpiercing,notchingandcirclecuttingwith the help of Metal master machine. / Blacksmithshop Tinsmith / 06

LIST OFEXPERIMENTS

S.No. / NAME OFEXPERIMENT / SHOP / PRACT.
Hrs.
11 / Practiceofpiercing,notchingandcirclecuttingwith the help of Metal master machine. / Blacksmithshop Tinsmith / 03
12 / Practiceofpiercing,notchingandcirclecuttingwith the help of Metal master machine. / Blacksmithshop Tinsmith / 03
13 / Practice ofedge preparation for welding. / Fitting / 09
14 / Demonstrationandpracticeofbeadlaying(Welding) on aFlat pieces / Fitting / 03
15 / Practice of Weldingof corner, edge and Teejoint / Welding / 02
16 / Welding'V'butt joint. / Welding / 03
17 / Practice of joiningwiresandrods of different sizeon spot weldingmachine. / Welding / 03
18 / Practice of making gasflames with nozzles andmakingsimple joints. / Welding / 02

NOTE:Theteacher is free toselect thenumberofpracticalcoveringall the topicsdependingupon the availabilityto time.

REFERENCES

1.Process And Materials ofManufacture byLindberg.

2.Workshop TechnologybyHazara &Choudhary.

3.Materials And ManufacturingprocessbyDalela.

4.ManufacturingProcesses byYankee.

5.ManufacturingProcessbyS.E. Rusinof

6.WeldingEngineeringbyB.E. Rossi.

7.ProductionEngineering– P.C. Sharma

8.ManufacturingTechnology- P.N. Rao

9.ProductionTechnology-R.K. Jain

10.FoundryEngineeringbyP.L. jain.

11.NirmanPrakram ( Hindi) byP.N. Vijayvargiya. (DeepakPrakashan, Morar, Gwalior)

RATIONALE

Electricityfindsitsbaseasbasicenergyformodernindustrialactivitiesandsoisthecaseofelectronics,whichisbeingextensivelyusedtodayinallindustries,powersystemoperation,communicationsystems,computerandinformationtechnology.Henceithasbecomeabsolutelynecessaryforall diploma holders to have basicunderstandingof–

(a)Basic laws ofelectricity

(b)D.C. and A.C. Circuitandmachines

( c)Electronic Components,their functionsandapplications.( d)Electrical andElectronicinstruments

(e)SafetyMeasures

Thiswillformthebaseforhandlingvarioustypesofequipmentusedinindustrieswill facilitatetechniciansin operationand maintenanceofequipment.

Thepracticalworktobeperformedinthiscoursewillhelpindevelopingskillsofoperationand testingofcomponentandvariousgadgets.

SCHEME OFSTUDIES

S.
No. / TOPICS / TH. HRS / PR.HRS / MKS
01. / Fundamentals of Electrical Engineering / 2 / - / 2
02. / D.C. Circuits / 4 / 2 / 6
03. / A.C. Circuits / 5 / 4 / 9
04. / D.C. Machines / 8 / 4 / 12
05. / A.C. Machines / 8 / 6 / 14
06. / Measuring Instruments and Transducers / 6 / 4 / 10
07. / Electrical Wiring / 2 / 4 / 6
08 / Electronic Devices andCircuits / 8 / 6 / 14
09 / Electrical Safety / 2 / - / 2
TOTAL / 45 / 30 / 75

COURSE CONTENTS

S.
NO. / COURSE CONTENTS / HRS
1.
2.
3. / FUNDAMENTALS OF ELECTRICALENGINEERING
1.1Concept of electriccurrent,potential and potentialdifference(Voltage).
1.2Sources of D.C.and A.C.Electricenergy.
1.3Methods of voltagegenerationandstandardvoltages used in generationtransmissionand distribution.
1.4Electrical Power, energyand theirunits.
D.C. CIRCUITS
2.1 Ohm’sLaw,Conceptof resistance,conductance,resistivity,conductivityandtheirunits. Effect of temp. on resistance.Temperaturecoefficient of resistance (Definitiononly)
2.2Connections of resistances.Series,Parallelconnectionsand theircombinations. ( Simple Numericals)
2.3Kirchoff’sVoltageLaw,Kirchoff’sCurrentLaw (Simple Numerical)
A.C. CIRCUITS
3.1Generation of singlephase and threephasesinusoidal voltage.Vectorrepresentation.Conceptof Cycle,Frequency, time period,amplitude, phase andphase difference.
3.2Defineinstantaneousvalue,average value, RMS valueandpeak valueofsinusoidal electrical quantities. Deriverelationship between them .Formfactorandpeakfactor( Definitiononly).
3.3Current voltageand power in pureresistive, inductive and capacitive circuit.
3.4Concept of Reactance , impedance and powerfactor in R.L., R. C. andRLCSeriescircuit. (Simple Numericals).
3.5Causesandeffectofpoorpowerfactor.Methodsof improvingpower factor.
3.63 phase AC supply-threephase threewire and three phasefourwiresystem.RelationshipbetweenVLandVPH,ILandIPHand threephasepower in staranddelta connected load.( Simple Numerical) / 2
4
5
4.
5.
6.
7. / D.C. MACHINES
4.1 Review of concept ofElectromagnetism and relatedlaws (Faraday’sLaw,Lenz’sLaw, Cork ScrewRule, Fleming’sLeft HandRight Hand Rule.)
4.2Construction ofD.C. Machines, its main partsand their functions.Classification ofD.C. Machines.
4.3D.C. Generator : Principle , EMFequation( Derivationand simple numerical),TypesofD.C.Generator( NoNumerical),Applications of DCgenerator.
4.4D.C. Motor: WorkingPrinciple of DCmotor,Types of DCmotor,significance of backemf,Torque equation( NoNumerical).
4.5Characteristics of D.C.Series andShunt Motor. Applications of D.C.Motor.
D.C. Motor starter -3 point starter. Efficiency(No numerical )
A.C. MACHINES
5.1Single PhaseTransformer : Construction, workingprinciple.
5.2EMFEquation ( Derivation with simple numerical),Turnratio, Step up andstep downtransformers and their application.
5.3Losses ,efficiencyand regulation ( No derivation).
5.4Three PhaseInduction Motor : Construction,types, principle of operation.Concept of Slip ( SimpleNumerical), Applications, Starters: DOLand StarDelta.
5.5Single Phase Induction Motor: Methods of makinga single phasemotorselfstart.Types of single phaseinduction motor-capacitor start,capacitor runandshaded poleand theirapplications.
5.6Synchronous Machines :Synchronous motor-construction, principle ofoperation, comparision with three phase inductionmotor.
Synchronousgenerator (alternator) – Construction, principle ofoperation,speedandfrequency, synchronous speed.
MEASURINGINSTRUMENTSAND TRANSDUCERS
6.1Classification ofMeasuring Instruments, absolute and secondaryinstruments.Indicating,Integrating and Recordinginstruments,theirexamples.
6.2Elementaryidea about workingprinciples andconstruction ofMIand MCtype Ammeter andvoltmeter.Electrodynamometertypewattmeter.Inductiontypeenergymeter , electronic energymeter. Application of Meggerand earthtester.Multimeter, CRO, its block diagram and applications.
6.3Transducers – Definition, primaryand secondarytransducers, activeandpassive transducers,variableparameter R,L,C type transducers.
6.4Generalidea about strain gauge,LVDT,Thermocouple, Peizo ElectricandPhotoelectricTransducers.
ELECTRICWIRING
7.1Typesof Wiringand their Applications.
7.2Sizeof conductor , S.W.gauge.Accessories likeswitches, fuses, holders,
sockets and MCB’s.
7.3Staircase Wiring,Fluorescent tube light wiring. / 8
8
6
2
8.
9. / ELECTRONICDEVICESANDCIRCUITS
8.1Semiconductor PN JunctionDiode,ZenerDiode, PNP and NPNtransistor ,UJT, FET,MOSFETandSCR. Theirlayerdiagram,symbol,V-I characteristicsandapplications.
8.2Electronic Circuits: Concept of biasingof diode and transistor.
8.3Single PhaseHalf waveand Fullwaverectifier(I/Owaveform),Conceptofripple,filtercircuit (shunt capacitorandseries inductor). Transistor as anamplifier,concept ofgain,Zenerregulator, regulatedpower supply(Blockdiagramonly).
ELECTRICSAFETY
9.1 Electricshockand its prevention , effectofelectricalcurrent on humanbody,shock treatment, need ofearthing. / 8
2

LIST OFEXPERIMENTS

S.
NO. / NAME OFEXPERIMENT / Hrs. of Study
01. / Verification ofKirchoff’sLaw
02. / To MeasureVoltage Current and power in singlephase AC circuit.
03. / To calculateImpedance,powerandpowerfactor bymeasuringvoltage
acrosseach element andcurrent to thecircuitfora givenRLCseries
04. / circuit.
05. / Studyofdifferent parts ofDCmachine .
06. / Studyof threepoint starterforDC motor.
07. / To determine transformation ratio of a givensinglephase transformer.
08. / Studyandoperation ofDOLand StarDelta Starter.
09. / To measureslip for agiventhree phaseinductionmotor.
10. / To measureinsulationresistance byMegger.
11. / To measureearth resistancebyearth tester.
12. / To measurelinear displacementbyLVDT.
13. / To make connectionfor stair casewiring.
14. / To make connectionforfluorescent tubelight circuit.
15. / Testingof various electronic components usingmultimeter and CRO.
16. / To draw V-Icharacteristics ofZenerdiode.
17. / To observeinput and output wave formoffull wave/ halfwave rectifier
on CRO.
To observeamplified output of agivenamplifier.
NOTE : Thelist of the experimentgivenabove, thestudent has to
perform atleast 12 experiment.
Total / 30

Lectures: 03 Hrs. per WeekPractical: 02 Hrs. per Week

REFERENCES

1.Fundamental ofElectrical Engineeringand Electronics– B.L.Thareja , S.CHANDPublication

2.BasicElectrical Engineering– V.K. Mehta , S. CHAND Publication

3.Principles of Electronics– V.K.Mehta , S. CHAND Publication

4.BasicElectrical Engineering– V. N. Mittle, TMH

5.Electrical Machines VolI& II – S.K.Bhattacharya,TTTI, Chandigarh

6.A Cursebook in ElectricalElectronicMeasurement andInstrumentation , A.K.Sawhney.

7.Principles of ElectricalEngg.andElectronics– V.K. Mehta , S. CHAND Publication

8.Electrical Technology–S.L.Uppal, Khanna Publication

9.ELectricalMeasurement– J.B. Gupta,DhanpatRai &Sons.

RATIONALE

ThiscourseinmechanicalDraftinghasbeenpreparedwithaviewtodevelopelementarydraftingskillinthestudents.Lookingtotheprofessionalneedsofthetechnicians,moreemphasishasbeenlaidontheuseofI.S.Codeofpracticeandreadingandinterpretationofdrawings.Thetopicsonmultiviewrepresentationdimensioningandtolerance,FreehandsketchingandsectionsofM/cpartsareincludedtobuildfoundationforproductiondrawing.Thetopicofpipedraftingwillhelpthestudentstounderstandtheimportance andfunctionsofpipingsystem in industry.

ComputerGraphicsisamodernconceptinMechanicalDraftingandknowledgeofcomputerinterfacelikeAutoCADisneededlikeprimaryeducationtodrawandpresent drawingin electronicdata form.

Lectures: 02 Hrs. per WeekPractical: 06 Hrs. per Week

SCHEME OFSTUDIES

S.No / Topics / TheoryHrs / PracticeHrs. / TotalHrs.
1 / Projectionsand multiview representation. / 01 / 05 / 06
2 / Sectionalviews. / 01 / 05 / 06
3 / Dimensioning, tolerance, machining and welding / 01 / 05 / 06
symbols.
4 / Productiondrawing. / 10 / 36 / 46
5 / Introduction to Auto CAD / 06 / 16 / 22
6 / Application ofAuto CAD / 04 / 06 / 10
7 / Presentation / 02 / 05 / 07
8 / Pipe Drafting / 02 / 04 / 06
9 / GearDrawing / 02 / 06 / 08
10 / Graphandcharts / 01 / 02 / 03
Total / 30 / 90 / 120

Lectures: 02 Hrs. per WeekPractical: 06 Hrs. per Week

COURSECONTENTS

S.NO / COURSECONTENTS / STUDY
Hrs.
1 / ProjectionandmultiviewRepresentation:Projectionorthographicprojection.Firstandthirdangleprojection,superfluousview,choiceofviews,auxillaryviews-views-fullandpartial,conversionofpictorialviewsintoorthographicviews,conventionalrepresentationas per IS: 696. / 1
2 / Sectional Views: Fullsection,halfsection, partialor broken section,revolvedsection,removedsection,offsetsection.Sectioningconventions,sectionlines.Hatching procedurefordifferentmaterialsasperIScode6861972.Sectionalviewsofassembledparts.ChoosingfromICengineparts,couplings,clutches,brackets,bearingetc.( Use 1st and3rd angle projections both) / 1
3 / DimensioningTolerance,MachiningAndWeldingSymbols:Typesofdimensions(sizeandlocation)dimensioningtermsandnotations.(useofI.S.Code696&2709)generalrulesfordimensioningandpracticalhintsondimensioningsystems ofdimensioning.Dimensionofcylinderholesarcs ofcirclenarrowspace,angles,counter sunkhole,screwthreadstaperetc.Applicationoftolerances.(UseI.S.Code696)Machiningmarks,finishmarks,countersinking,counterboringspotfacing,figuresandnotesforsame.Representationofcharacteristicsmachining(circularity,Angularityetc.)(RefIS969)Representationofweldedjoints,weldingsymbols,toleranceofformsandpositions. Procedureofdrawingfits, limits, size,tolerance,clearance etc. / 1

Lectures: 02 Hrs. per WeekPractical: 06 Hrs. per Week

COURSECONTENTS

S.NO / COURSE CONTENTS / STUDY
Hrs.
4 / ProductionDrawing:Detaileddrawing,assemblydrawing,scale,finishtolerances,notesetc.Titleblock,toollist,gaugelist.Preparationofproductiondrawingforpatternshop.Forgingshop,machineshop,preparationofassemblydrawingfromdetaileddrawing.explodedviews,sectionalpictorialviews,assemblydrawingofnutandbolt,plummerblock,flangecoupling,steppedpulleys,foot-stepbearing,Universalcoupling,connectingrod,pistonofI.C.engines,cotterjoint,Knucklejoint.Preparationofdetaileddrawingfromassemblydrawingsandassembledpictorialviews,Interpretation of production drawing. / 10
5 / IntroductiontoAutoCAD:Coordinatesystem.Drawcommand-line,arc,circlerectangle,polygon,point,ellipse,hatch,table.Modifycommands-erase,copy,offset,
array,trim,extend,break,join,chamfer,fillet,move,rotate,scale,stretch,lengthen. Dimensioning
Tray settings:snap,grid, ortho,polar, osnap
Formatcommands: line type, point style, units, layers, drawinglimit,dimensionstyle / 06
6 / ApplicationofAuto CAD:practice of assemblydrawings usingAuto CAD / 04
7 / Presentation:Block,creatinglayout,insertlayout,ploting/printing / 02
8 / Pipe Drafting: Varioussymbols used in pipe lineworkas perIScode of Practice,C.I.flanged joint, socketandspigot joint, glandandstuffingbox, expansion joint, pipe fittingtypical pipe bends, pipesupports andaccessories. / 02
9 / Gear Drawing : Gearterminologysuch as pitch,pitchcirclediametermodule, addendum, root circle diameter,hole depth,blankdiameteretc.construction of cycloidal,involute teethprofiles, pinionandrack mashing, spurgearmashing. / 02

COURSECONTENTS

S.NO / COURSECONTENTS / STUDY
Hrs.
10 / Graph and Charts:Introduction,Classification ofchart, graphsanddiagrams,quantitativeandqualitativechartsandgraphs,Drawingandcurvetitles,legendsnotesetc.procedureformakingagraphicalrepresentationinink.Logarithmicgraphs,semilogarithmicgraphs,barchartsarea(Percentage)charts,piechart,alignmentcharts(Nomographs)Formsandconstruction,constructionoffunctionalscale,parallel scalecharts forequations of theform
f(t)+f(u)+f(v),(f(t) f (u)=f(v)threescalealignmentchart,graphicalconstructionofaZ-chart,fourvariablerelationshipparallel scale alignment chart. / 01

SUGGESTEDTERMS–WORK

S.No. / TOPIC / PRACT.SHEETSIN NOS. / HOURSOF STUDY
1 / Projectionand multi viewsrepresentation / 02
2 / Sectionalviews / 02
3 / Dimensioning,tolerance,machiningsymbols / and / welding / 02
4 / Production drawing / 08
5 / Pipe drafting / 01
6 / GearDrawing / 02
7 / Graphsandcharts / 01
8 / Computergraphics / 05
TOTAL / 23 Plates / 90

REFERENCES

1Fundamentals of EngineeringDrawingbyWarrenJ.Luzadder(Prentice-Hall).

2Machanical DrawingbyGiesecke,Mic-hell Specer,Hill. ( CollierMacmillanInternalEdition)

3EngineeringGraphicsbyGiesecke/Mitchell/Spencer/ Hill/Loving(Macmillan).

4Mechanical DrawingByN.D.Bhatt

5Mechanical DrawingByP.S.Gill

6Mechanical DrawingByR.K.Dhawan

7InsideAUTO CADbyDanielRakerand HarbestRice(BPBPublisher)

8ComputerGraphicsandCAD FundamentalsByNoel M Morries(Wheeler)

RATIONALE

Thetechniciansfrommechanicalengineeringdisciplineareexpectedtoknowmuchaboutthissubjectsoastofulfillhisjobfunctionsefficiently.Theknowledgeisveryessentialforthosewhoareengagedindesign,maintenance,shop-floorinspection,qualitycontrol and productiondepartments.

ThecourseincludesthestudyofbehaviorofEngineeringmaterialsandstressproduced in thestructure dueto various types of loadingsystems.

Thesubjectsiskeptindiplomacoursesothatthestudentsofmechanicalengineeringdisciplineshouldknowtheproperuseofmaterial forcommonengineeringproblems.

Lectures: 04 Hrs. per WeekPractical: 02 Hrs. per Week

SCHEME OFSTUDIES

S.
No. / Topics / Theoryhrs / Practicalhrs / Totalhrs.
1
2
3
4
5
6
7
8
9
10
11
12 / Simple stressesandstrains
Mechanicalpropertiesand theirtestingShearforce and bending momentPrincipal planes andprincipal stressesBendingstresses in beams
Shearstresses in beams.Deflection ofbeams.
Torsion of shaftSpring.
Column and strutsStress in frames
Thin Cylindersand spheres
. / 06
04
06
06
06
04
06
04
04
04
06
04 / - 18
06
06
-
-
-
-
-
-
- / 06
22
12
12
06
04
06
04
04
04
06
04
Total / 60 / 30 / 90
S.NO / COURSECONTENTS / STUDY
Hrs.
1 / SimpleStressandStrains:Introductiontypesofloadsanddeformation,typesofstressesandstrain.Hooke'slaw,stressstraindiagramforferrousandnonferrousmaterialsmodulusofelasticity.rigidityandbulkmodulesofmaterialsStressinbarsofvaryingcrosssections,compositesectionsandcompoundsections Thermalstressesandstrains,thermalstressesincompositesections.Poisson'sratio,volumetricstrain,relationbetweendifferentmodulus,strainenergy,resilience,proofresilience,modulesofresiliencesuddenlyapplied loads andimpactloads. / 06
2 / Mechanicalpropertiesandtheirtesting:Mechanicalpropertiesofmaterials,destructiveincludingTensiletest,compressiontest,hardnesstest,torsiontest,impacttestfatiguetest,endurancelimit,bendingtest, shear test and non- destructive testingmethods. / 04
3 / S.F. and B.M. Diagrams: Definition,types of loadingtypesofbeams,shearforce and bendingmoment sign conventions S.F.and
B.M.diagrams for cantilever simplysupported and overhangingbeams with point or concentratedloads uniformlydistributed loadsandcombination ofpoint andU.D.L. Point of contraflexure,numerical problems. / 06
4 / PrincipalPlanes and PrincipalStresses: Stresses on inclined planesubjected to direct shearor combination ofstresses in two mutuallyperpendicularplanes. Principal planes andprincipal stresses,analytical andgraphicalmethods. / 06
5 / BendingStresses in Beams: Theoryof simplebendingasassumptionsmade in simplebendingtheoryposition of neutral axis,surface moment or resistance.Modulesofsectionof symmetricalsections such asrectangular,circularandIsections, bendingstressesin symmetrical sections. Simple problems.Reinforced concretebeams,beam of uniformstrength. / 06
S.NO / COURSECONTENTS / STUDY
Hrs.
6 / ShearStressesinBeams.:Introductionshearstressequation,assumptionsmade,distributionofshearstressesovervarioussections,suchasrectangular,circularandILTsections,Simplenumerical problems. / 04
7 / DeflectionofBeams:IntroductionStrengthandstiffnessofbeamcurvatureofbentbeam,DerivationofequationforslopeanddeflectionofbeamincaseofcantileverandsimplysupportedbeamloadedwithpointloadsU.D.L.andcombination.Simplenumericalproblems.Importance ofdeflectionandpracticalapplications. / 06
8 / Torsionof Shaft: Definition oftorsionrelationbetween stress,strain and angle oftwistassumptionsmade strength of solid andhollow circularshaft, polarmoment of inertia. Calculationof shaftdiameteron the basis of strengthandstiffness for thegivenhorsepowertransmitted torsional rigidity. Maximum torquecomparison ofsolid and hollow shaft sizeof ashaft for agiventorque. / 04
9 / Spring : Definitiontypesand useof springs,leaf spring,helical andspiralsprings,Stiffnessof aspringand maximumshearstress,defection ofspring. SpringClassification based on size shape andload. / 04
10 / Columns and struts:Definitions cripplingload different endconditions,slendernessratio, equivalentlength,Euler's theoryRankine'sformulae, radius of gyration,Rankineconstant fordifferentmaterialsLimitations of Rankineformulasimple problem
B.I.S.codeforcolumns. / 04
11 / Stresses in Frames: Definition of frame,perfect,deficientandredundant frame. Assumptions made in findingstress in method ofsectionsandgraphicalmethodBows notation, solution of problemsusingthreemethods. / 06
S.NO / COURSECONTENTS / STUDY
Hrs.
12 / ThinCylindersandSpheres:Hoopstresslongitudinalstressoninclinedplane subjectsubjectedtodirect,shell,volumestrainchangeinvalue,cylindricalvesselssubjectedtointernalpressure,simplenumerical problems. / 04

LIST OFEXPERIMENTS

S.No. / NAME OFEXPERIMENT / PRACT.
Hrs.
01 / Studyanddemonstrationof Universal TestingMachine &itsattachments / 02
02 / TensionTest on mild steel, Aluminium &compression test on castiron on Universal TestingMachine. / 03
03 / Direct Shear Test of mild steel on Universal TestingMachine. / 03
04 / BrinellHardnessTest onMild Steel. / 02
05 / Rockwellhardness Test on HardenedSteel. / 02
06 / IzodCharpy-Impact tests of astandard specimen / 03
07 / Torsion Test on Mild steelbar. / 03
08 / Drawingsheet on shearforcebending Momentdiagrams foragiven loading(At least four problems.). / 06
09 / Estimation of principalstressesand maximum shearstrain foragivencombined loadingbyanalyticalMohr’scircle method. (At least twoproblems.). / 06

REFERENCES

1Strength of Materials.byB.C.Punmia.

2Strength of Materials . byR.S. Khurmi.

3Strenght of MaterialsbySadhuSingh.

4Strength of MaterialsbyK.D.Sexena.

5Strength of MaterialsbyS. Ramamuruthan.

6Strength of MaterialsbyI.B.Prasad.

7Strength of MaterialsbyRyder.

8Strength of MaterialsbyTimo shankoyoung

9LaboratoryExperimentsInStrengthofMaterialsbyB.D.Sharma.

10Dravya Samarthya (Hindi) byK.D. Saxena(Deepak Prakashan, MorarGwalior)

RATIONALE

ProfessionalActivitiesisnot adescriptivecourse,asperconventionalnorms; thereforespecificcontentforthiscoursecannotbeprescribed.Itisagroupofopen-endedactivities;whereinvarietyoftasksaretobe performed,toachieveobjectives.Howevergeneralguidelinesforachievingthetargetandprocedureforitsassessmentaregivenunderthecoursecontent.

Asthestudenthastopracticethiscourseinallthesixsemesters,theguidelinesgiventhereinarecommonandapplicable to eachsemester.

OBJECTIVES:

Toallowforprofessionaldevelopmentofstudentsasperthedemandofengineeringprofession.

Toprovidetimefororganizationofstudentchapteractivitiesofprofessionalbodies)

i.e.Institute ofengineers,ISTE orComputer SocietyofIndia etc.)

TOallowfordevelopmentofabilitiesinstudentsforleadershipandpublicspeaking

through organization ofstudent’s seminaretc.

To provide time for organization of guest lectures by expert engineers/eminentprofessionals of industry.

Toprovidetimefororganizationoftechnicalquizorgroupdiscussionoranyothergroupactivity.

To provide time for visitinglibraryor using Internet.

To provide time forgroup discussion orsolvingcase studies.

To provide time for personalitydevelopment of students.

Toprovidetimeforworkingforsocialcauselikeawarenessforenvironmentalandecologyetc.