Dmm1 Lesson Plan

ACADEMIC HANDBOOK

III B. TECH. (MECHANICAL ENGINEERING)

I SEMESTER

DEPARTMENT OF MECHANICAL ENGINEERING

D.V.R.COLLEGE OF ENGINEERING AND TECHNOLOGY

HYDERABAD, ANDHRA PRADESH

2013 2014DEPARTMENT OF MECHANICAL ENGINEERING

Name of the Staff: Dr. G. Srinivasa GuptaSubject: Design of Machine

MembersI

Code: ME 55019Year: 2011-2012

Course: B.Tech (Mechanical Engg)III Year, I Semester

List of Text Books:

T1 Machine Design / Dr V.B.Bhandari (TMH Publishers)

T2 Machine Design / Dr.P.C.Sharma and R.K.Agarwal (SK Katario Publications)

List of Reference Books:

R1 Design of Machine Elements / V. M. Faires R2 Machine Design / Schaum Series.

R3 - Machine Design / Pandya And Shah. R4 Machine Design / Robert L. Norton

R5 Machine Design / P. C. Sharma & D. K. Aggarwal R6 Design of Machine Elements / V. B. Bhandari

R7 Machine Design / R. S. Khurmi & J. K. Gupta R8 Design Data / PSG College of Technology

TopicTopic NameReference BooksNumber ofCumulative

No.PeriodsPeriods

UNIT-I

INTRODUCTION:

1GeneralT1,R3,R522

considerationsin

the designof

Engineering

Materials and their

properties

2ManufacturingT1,R2,R413

considerationsin

design

3TolerancesandT1,R3,R536

fits-BIS codes of

steels

STRESSES IN

MACHINE

MEMBERS

4Simplestresses-T1,R5,R739

Combined

stresses-Torsional

andbending

stresses-impact

stresses-stress

strain relation

5Various theories ofR5,R6,R7312

failure-factorof

safety-Designfor

strengthand

rigidity-preferred

numbers

6TheconceptofT1,R3,R5,R6214

stiffnessin

tension,bending,

torsionand

combined

situations-Static

strengthdesign

basedonfracture

toughness

UNIT-II

STRENGTHOF

MACHINE

ELEMENTS :

7StressT1,R2,R4216

concentration-

Theoriticalstress

Concentration

factor-Fatigue

stress

concentration

factor-notch

sensitivity

8DesignforT1,R3,R4,R6218

fluctuating

stresses-

Endurancelimit-

Estimationof

Endurance

strength

9Goodmansline-T1,R3,R4,R6321

Soderbergsline-

Modified

goodmans line

UNIT-III

10RivetedandT1,R2,R4,R6,R7223

welded joints

11DesignofjointsT1,R5,R6,R7427

withinitial

stresses-eccentric

loading

UNIT-IV

BOLTED JOINTS :

12DesignofboltsT1,R5,R6,R7229

with pre-stresses

13DesignofjointsT1,R5,R6,231

undereccentric

loading

14Locking devices T1,R6,R7233

bothofuniform

strength,different

seals

UNIT-V

KEYS,COTTERS

ANDKNUCKLE

JOINTS:

15Designofkeys-T1,R4,R6,R7134

stresses in keys

16Cotteredjoints-T1,R5,R6,R7438

spigot and socket,

sleeveand cotter,

jib and cotter joints

17Knuckle jointsT1,R4,R6240

UNIT-VI

SHAFTS :

18DesignofsolidT1,R4,R6,R7242

andhollowshafts

forstrengthand

rigidity

19DesignofshaftsT2,R4,R5,R6345

forcombined

bendingand axial

loads-shaft sizes-

BIS code

20Use of internal andT2,R5,R6146

externalcirclips,

Gaskets and seals

(stationary&

rotary)

UNIT-VII

SHAFT

COUPLING :

21Rigid couplings T1,T2,R4,R5,R6,R7248

Muff,Split muff

andFlange

couplings

22Flexible couplings-T2,R4,R5,R6250

Flangecoupling

(Modified) .

UNIT-VIII

MECHANICAL

SPRINGS :

23StressesandT2,R4,R5353

deflectionsof

helicalsprings-

Extension-

compression

springs

24Springs for fatigueT2,R4,R5356

loading-natural

frequencyof

helicalsprings-

Energystorage

capacity-helical

torsion springs

25Co-axialsprings,T2,R4,R5460

leaf springs

Submission Dates for Assignments:

S. No.Assignment TopicLast date for Submission

11 to 625-07-2011

27 to 1415-08-2011

315 to 2010-09-2011

421 to 2530-10-2011

Portion for MID Tests & Date of test (tentative)

1.Portion for the I MID test : Topic No: 1 to 1410-09-2011

2.Portion for the II MID test : Topic No: 15 to 255-11-2011

Name of the Staff: G. Srinivasa GuptaSubject : Design of Machine Members-I

Code: ME 55019Course : B.Tech (Mechanical Engineering)

Semester: III B. Tech. I (Semester)Year: 2011-2012

UNIT I

INTRODUCTION : General considerations in the design of Engineering Materials and their properties-selection-Manufacturing consideration in design. Tolerances and fits - BIS codes of steels. STRESSES IN MACHINE MEMBERS : Simple stresses Combined stresses Torsional and bending stresses impact stresses stress strain relation Various theories of failure factor of safety Design for strength and rigidity preferred numbers. The concept of stiffness in tension, bending, torsion and combined situations- Static strength design based on fracture toughness.

Learning objectives : after successful completion of unit I the student must be able to

1. Discuss general considerations in the design of Engineering materials

2. State and explain various properties of Engineering materials

3. Explain various factors which govern the selection of engineering materials

4. Enumerate manufacturing considerations in design.

5. Explain the terms Tolerances and fits and its importance in manufacturing of materials.

6. Discuss BIS codes of steels

7. Enumerate various types of stresses and develop the relation between stress and

strain.

8. State and explain various theories of failures and their application in design of engineering materials.

9. Define factor of safety and explain its importance.

10.Discuss the term Design for strength and rigidity.

11.Explain the term preferred numbers.

12.Discuss the concept of stiffness in tension, bending, torsion and combined loading situations.

13.Explain concept static strength design based on fracture toughness.

UNIT II

FATIGUE LOADING : Stress concentration- theoretical stress concentration factor-Fatigue stress concentration factor notch sensitivity-Design for fluctuating stresses-Endurance limit- Estimation of Endurance strength-Fatigue theories of failure-Goodman and Soderberg.

Learning objectives : after successful completion of unit II the student must be able to

1. Explain the terms stress concentration, theoretical stress concentration factor, fatigue stress concentration factor, notch sensitivity and develop the relation between them.

2. Develop the procedures for design under fluctuating stresses.

3. Define endurance limit and describe the procedure for estimation of endurance strength.

4. Discuss the concept involved in Goodmans line, Soderbergs line.

UNIT III

RIVETED AND WELDED JOINTS: Riveted joints: Modes of failure of riveted joints Strength Equations efficiency of riveted joints Design of boiler joints eccentrically loaded riveted joints. Welded joints: Design of Fillet welds axial loads Circular fillet welds bending and torsion eccentrically loaded joints.

Learning objectives : after successful completion of unit III the student must be able to

1.Explain various fabrication methods and relative merits and demerits of each.

2.Develop the procedures for design of joints with initial stresses.

3.Design riveted and welded joints under eccentric loading.

UNIT IV

BOLTED JOINTS: Design of bolts with pre-stresses-Design of joints under eccentric loading- bolt of uniform strength, Cylinder cover joints.Learning objectives : after successful completion of unit IV, the student must be able to

1. Explain importance of bolted joints.

2. Describe procedures for design of bolts with pre-stresses.

3. Discuss design of bolted joint under eccentric loading.

4. Enumerate various types of locking devices.

5. Explain the term uniform strength.

6. Differentiate various types of seals.

UNIT V

AXIALLY LOADED JOINTS:

Design of keys-stresses in keys- cottered joints spigot and socket, sleeve and cotter, jib and cotter joints - Knuckle joints.

Learning objectives : after successful completion of unit V the student must be able to

1. Discuss various modes of failure occur in keys and their design. 2. State and explain various types of cottered joints and important features of each. 3. Discuss the design procedure of each type of cottered joints. 4. Distinguish the design procedure for cotter and knuckle joints.

UNIT VI

DESIGN OF SHAFTS: Design of solid and hollow shafts for strength and rigidity Design of shafts for complex loads Shaft sizes BIS code Design of Shaft for a gear and belt drives.

Learning objectives : after successful completion of unit VI the student must be able to

1. Explain the Design procedure for solid and hollow shafts for strength and rigidity.

2. Discuss design procedure when shafts under combined bending and axial loads.

3. Mention standardization of shaft sizes and their specifications under BIS code.

4. Discuss the design aspects of shaft for a gear and belt drives.

UNIT VII

SHAFT COUPLING : Rigid couplings Muff, Split muff and Flange couplings. Flexible couplings Pin Bush coupling.Learning objectives : after successful completion of unit VII the student must be able to

1. Discuss the purpose of coupling Explain the classification of couplings.

2. Describe the design procedure for Muff, Split muff and Flange couplings.

3. Distinguish the importance of Flexible coupling over other types.

4. Enumerate the design procedure for Flange coupling and Modified flange coupling.

UNIT VIII

MECHANICAL SPRINGS: Stresses and deflections of helical springs- Extension compression springs Springs for static and fatigue loading natural frequency of helical springs Energy storage capacity helical torsion springs Co-axial springs.

Learning objectives : after successful completion of unit VIII the student must be able to

1. Discuss the classification of springs and special features of each.

2. Derive the relations between stress and load & deflection and load for any type of

spring.

3. Describe the design procedure when springs under fatigue loading.

4. Explain the concept of natural frequency of helical springs.

5. Derive the relations for energy storage capacity for various types of springs.

6. Differentiate the advantages of co-axial springs over other springs.

III B.Tech (Mechanical) I semester

Assignment I

Date :

(1)A machine member 0.05m diameter and 0.25 m long is supported at one end as a cantilever. The transverse load at the free end is 2750 N causes bending, axial load is 13.75 KN and twisting moment at the free end is 250Nm. Determine principle stresses and maximum shear stresses for the following cases.

(a)Bending and torsion loads

(b)Bending and axial loads

(c)Torsion and axial loads\

(d)Bending, axial and torsional loads

(2)A bolt is subjected to an axial force of 10 KN with a transverse shear force of 5 KN. The permissible tensile stress at elastic limit is 100 MPa and the poissions ratio is 0.3 for the bolt material. Determine the diameter of the bolt required according to each theory of failure.

(3)A shaft is designed based on maximum distortion energy theory with a factor of safety of 2.0. The material used is 30C8 steel with a yield stress of 310 MPa. It is subjected to an axial load of 40 KN. Determine the maximum torque capacity. Diameter of shaft is 20 mm

(4)The stress induced at a critical point in a machine component made of steel 45C8 (Syt = 380 MPa)are as follows: = 100MPa, = 40 MPa, = 80 MPa. Calculate factor of safety by (i) the maximumxyxyprincipal stress theory and (ii) the maximum shear stress theory.

(5) A Cantilever beam of section width 50 mm and depth 150 mm is 1.5 m long. This beam is struck by a load of 1000 N which falls from a height of 10 mm at its free end. Determine the maximum deflection, maximum stress, impact factor and maximum load intensity. Also determine static deflection and static stress.

(6) Write a brief note on different phases of design. Discuss various general considerations that are taken into account while designing a machine element.

(7)A 50 mm diameter steel shaft is supported on bearings 1.5m apart and carries a fly wheel weighing W. The allowable bending stress for the shaft material and the maximum deflection are limited to 100 MPa and 2 mm respectively. The youngs modulus for the shaft material is 210 GPa. Determine the Maximum permissible weight of the flywheel.

(8)The diameter of a piston of the steam engine is 250 mm and the maximum steam pressure is 0.8 N/mm2, find the size of the piston rod.

(9)A flange coupling is held together by four M24 bolts, and arranged on bolt circle of 150 mm. Each bolt is initially tightened to a load of 50 KN to make a tight joint. The power transmitted by the coupling is 5Kw at a speed of 600 RPM. Estimate the Maximum Normal and Shear Stresses in the Bolt Material.

(10)A hollow shaft is required to transmit 600 KW at 110 rpm the maximum torque being 20% greater than the mean. The shear stress is not to exceed 63 MPa and twist in a length of 3 meters not to exceed 1.4 degrees. Find the external diameter of the shaft, if the internal diameter to the external diameter is 3/8. Take G = 84 GPa.

III B.Tech (Mechanical) I semester Assignment IIDate :Date :

1.A 40 mm diameter shaft is made of steel 50C4 (Sut = 660 N/mm2) and has a machined surface. The expected reliability is 99%. The theoretical stress concentration factor for the shape of the shaft is 1.6 and the notch sensitivity factor is 0.9. Determine the endurance strength of the shaft.

2.A shaft supported as a simple beam, 0.45 mm long, is made of AISI 3120 steel. With the shaft rotating a steady load of 8000 N is applied midway between the bearings. The surfaces are ground. Indefinite life is desired with a factor of safety of 1.6 based on endurance strength. What should be the minimum diameter of the shaft if there are no surface discontinuities? Endurance limit is 630 MPa. Size factor is 0.85 and machine surface finish factor 0.87.

(3) A leaf spring in an automobile is subjected to cyclical stresses.

The average stress = 150 MPa, variable stress = 50 MPa, Ultimate stress = 630 MPa, Yield point stress = 350 MPa and endurance limit = 150 MPa. Estimate under what factor of safety the spring is working, by Goodman and Soderberg formulae.

(4) A stepped shaft transmits a torque varying from 800 Nm to 1200 Nm. The ratio of diameter is 1.5and the stress concentration factor is 1.2. Determine the diameter of the shaft for an infinite life for a design factor of safety 1.8. The Ultimate tensile strength of the material of the shaft is 600 MPa. Yield

stress of the material is 450 MPa. Consider the size effect and surgace finish effect.

(5)A round shaft made of cold finished AISI 1020 steel is subjected to a variable torque whose maximum value is 700 KN-m. For a factor of safety of 1.5 on the Soderberg criterion, determine the diameter of the shaft if

a.The torque is reversed

b.The torque varies from zero to maximum

c.The torque varies from 300 Nm to a maximum

Assume,

Correction

(6) A bar of circular cross-section is subjected to alternating tensile forces varying from a minimum of 200 kN to a maximum of 500kN. It is to be manufactured of a material with an ultimate tensile strength of 900 MPa and an endurance limit of 700 MPa. Determine the diameter of bar using safety factors of 3.5 related to ultimate tensile strength and 4 related to endurance limit and a stress concentration factor of 1.65 for fatigue load. Use Goodman straight line as basis for design.

7.A steel connecting rod is subjected to a completely reversed axial load of 120 KN. Suggest the suitable size of the rod using a factor of safety 1.8. The ultimate strength of the material is 1000 MPa.

Load correction factor 0.7

Size factor0.85

Surface finish factor 0.8

8.A pulley is keyed to a shaft midway between two anti-friction bearings. The bending moment of the pulley varies from 150 Nm to 450 Nm as torsional moment of the shaft varies from 50 Nm to 150 Nm. The frequency of variation of the loads is the same as the shaft speed. The shaft is made of cold drawn steel having an ultimate strength of 550 MPa and yield strength of 310 MPa. Determine the required diameter for an indefinite life. The stress concentration factor for the key way in bending and torsion may be taken as 1.6 and 1.3 respectively. Use a design factor of 1.8, size factor 0.85 and surface correction factor 0.88.

Use for torsion,Size correction factor = 0.6 andThe nominal design torsion stress = 0.6 Yield point in tension.

9.A shaft is made of steel ultimate tensile strength 700 MPa and yield point 420 MPa is subjected to a torque varying from 200N m anti-clockwise to 600 Nm clockwise. Calculate the diameter of the shaft if the factor of safetyis 2 and it is based on the yield point and the endurance strength in shear.

10.A hot rolled shaft is subjected to torsional load that varies from 320 Nm clockwise to 120 Nm anti-clockwise and an applied bending moment at a critical section varies from 400 Nm to 200 Nm. The shaft is of uniform cross section. Determine the required shaft diameter. The material has an ultimate strength of 560 MPa and yield strength of 420 MPa. Assume factor of safety to be 2.

11.Bending stress in a machine part fluctuate between a tensile stress of 280 MPa and compressive stress of 140 MPa. What should be the minimum ultimate tensile strength to carry this fluctuation indefinitely according to

(i)Goodmans formula

(ii)Soderbergs formula

The factor of safety may be assumed to be 1.75. Assume that yield point is never likely to be less than 55% of the ultimate tensile strength or greater than 93 % of it.


Assignment IIIDate :

(1)A double riveted butt joint, in which the pitch of the rivets in the outer rows is twice that in the inner rows, connects two 16 mm thick plates with two cover plates each 12 mm thick. The diameter of the rivets is 22 mm. Determine the pitches of the rivets in the two rows if the working stresses are not to exceed the following limits:

Tensile stress in plates = 100 MPa, Shear stress in rivets = 75 MPa and bearing stresses in rivets and plates = 150 MPa.

Make a fully dimensioned sketch of the joint showing atleast two views. [Question from Set No. 1, Nov. 2005/Regular Examiniations]

(2)Two lengths of mild steel tie rod having width 200 mm are to be connected by means of Lozenge joint with two cover plates to withstand a tensile load of 180 KN. Completely design the joint, if the permissible stresses are 80 MPa in tension, 65 MPa in shear and 160 MPa in crushing. Draw a neat sketch of the joint.

[Question fromSet No. 2, Nov. 2005/Regular Examiniations]

(3)A triple riveted lap joint with zig-zag riveting is to be designed to connect two plates

of 6 mm thickness. Determine the diameter of the rivet, pitch of rivets and distance between the rows of the rivets. Indicate how the joint will fail. Also, find the efficiency of the joint. The permissible stresses are 120 MPa in tension, 100 MPa in shear and 150 MPa in crushing.

[Question fromSet No. 3, Nov. 2005/Regular Examiniations]

(4)A double riveted double cover butt joint in plates 20-mm thick is made with 25 mm

diameter rivets at 100 mm pitch. The permissible stresses are 120 MPa in tension, 100 MPa in shear and 150 MPa in crushing. Find the efficiency of joint, taking the strength of the rivet in double shear as twice than that of single shear.

[Question from Set No. 4, Nov. 2005/Regular Examiniations]

(5) A double riveted lap joint is made between 15 mm thick plates. The rivet diameter

and pitch are 25 mm and 75 mm respectively. If the ultimate stresses are 400 MPa in tension, 320 MPa in shear and 640 MPa in crushing, find the minimum force per pitch which will rupture the joint.If the above joint is subjected to a load such that the factor of safety is two, find out the actual stresses developed in the plates and the rivets.

[Question from Set No. 1, May 2005/Supplementary Examiniations]

(6)Two plates 16 mm thick are joined by a double riveted lap joint. The pitch of each row of rivets is 90 mm. The rivets are 25 mm in diameter. The permissible stresses are 140 MPa in tension, 80 MPa in shear and 160 MPa in crushing. Find the efficiency of the joint.

[Question from Set No. 2, May 2005/Supplementary Examiniations]

(7)An eccentrically loaded lap riveted joint is to be designed for a steel bracket as shown in fig.

The bracket plate is 25 mm thick. All rivets are to be of the same size. Load on the bracket, P = 50 KN, rivet spacing c = 100 mm, load arm e = 400mm. Permissible shear stress is 65 MPa and Crushing stress is 120 MPa. Determine the size of the rivets to be used for the joint.


Assignment IV

Date :

1.a) What do you understand by the term welded joint? How it differs from the riveted joint?

2.A Plate 75 mm wide and 12.5 mm thick is joined with another plate by a single transverse weld and a double parallel fillet weld as shown in fig. The maximum tensile and shear stresses are 70 MPa and 56 MPa respectively. Find the length of each parallel fillet weld, if the joint is subjected to both static and fatigue loading. Assume a length of 12.5 mm for starting and stopping of weld run. Take stress concentration factor for transverse weld as 1.5 and for parallel fillet welds as 2.5.

3.Sketch and discuss the various types of welded joints used in pressure vessels.

4.A 125X95X10 mm angle is joined to a frame by two parallel fillet welds along the edge of 125 mm length. If the angle is subjected to a static load of 180 kN, find the length of weld at the top and bottom. The allowable static load per mm weld length is 430N.

5.A 200X150X10 mm angle is joined to a frame by two parallel fillet welds along the edge of 200 mm length. If the angle is subjected to a static load of 200 KN, find the length of weld at the top and bottom. The allowable shear stress for static loading may be taken as 75 MPa.

6.Prove that a square key is equally strong in shear and compression.

7.Sketch the keys a) Woodruff keb) saddle keyc) Kennedy keyd) Gib head key.

8.Differentiate between a flat key and feather key.

9.Determine the required length of a square key if the key and shaft are to be made of same material and of equal strength.

10.Design a cotter joint to withstand an axial load varying from 60 KN in tension to 60 KN in compression. The allowable stresses for the steel used in the joint are 60MPa in tension; 75 MPa in crushing; 48 MPa in shear.

11.Design a cotter joint to withstand an axial load varying from 20KN in tension to 60 KN in compression. The allowable stresses for the steel used in the joint are 50 MPa in tension; 70 MPa in crushing; 40 MPa in shear.


Assignment VDate :

1.Explain the effect of key way on the strength of a shaft.

2.Write the comparison between solid shafts, hollow shafts and spindles.

3.A shaft is required to transfer 43KW of power at 600 rpm. The outside diameter must not exceed 50 mm and the maximum shear stress is not to exceed 70 N/mm2. Find out the dimensions of hollow and solid shaft, which would meet their requirements. Also compare their weights.

4.Compute the diameter of a solid shaft which has to transmit 16KW power at 300 rpm. Ultimate shear stress per shaft material is 350 N/mm2 and factor of safety for design is 6. If a hollow shaft replaces the solid shaft, find the inside and outside diameters if the ratio is 0.5.

5.A shaft is supported by two bearings placed 1.2 m apart. A 600 mm diameter pulley is mounted at a distance of 300mm to the right of left hand bearing and this drives a pulley directly below it with the help of a belt having maximum tension of 2kN. Another pulley 400 mm diameter is placed 200 mm to the left hand bearing and is driven with the help of an electric motor and belt which is placed

horizontally to the right. The angle of contact for both the pulleys is 1800and coefficient of friction is 0.24. Calculate the diameter of the shaft taking working stresses of 63 Mpa in tension and 42 Mpa in shear.

6.A shaft running at 400 rpm transmits 10 kW. Assuming allowable shear stress in shaft is 40 Mpa, find the diameter of the shaft.

7.Determine the diameter of the hollow shaft with inside dia = 0.6 outside dia. The shaft is driven by an overhung pulley of 90 cm diameter. Take weight of pulley is 60 kg, the belt tensions as 290 and

100 kg, over hang= 25 cm, angle of lap is 1800.

8.Why are two universal joints after used when there is angular misalignment between two shafts.

9.Design a cast Iron protective flange coupling to connect two shafts in order to transmit 7.5 kW at 720 rpm. The following permissible stresses may be used . Permissible shear stress for shaft, bolt and key material is 33 MPa, permissible crushing stress for bolt and key material is 60 Mpa.

Permissible shear stress for the cast iron is 15 Mpa.

10.Design a cmpression coupling for a shaft to transmit 1300 N-m. The allowable shear stress for the shaft and key is 40 Mpa and the number of bolts connecting the two halves are 4. The permissible tensile stress for the bolt material is 70 Mpa. The coefficient of friction between the muff and the shaft surface may be taken as 0.3.

11.A rigid coupling is used to transmit 20 kW power at 720 rpm. There are four bolts and the pitch circle diameter of the bolts is 125mm. The bolts are made of steel 45C8 (Syt = 380 N/mm2) and the factor of safety is 3. Determine the diameter of the bolt.

12.A universal coupling is used to connect two mild steel shafts transmitting a torque of 5000 N-m. Assuming that the shafts are subjected to torsion only. Find the diameter of the shaft and pins. The allowable shear stresses for the shaft and pin may be taken as 60 Mpa and 28 Mpa respectively.

13.The shaft and the flange of a marine engine are to be designed for flange coupling, in which the flange is forged on the end of the shaft. The following particulars are to be considered in the design.

Power of the engine = 3 MW Speed of the engine = 100 rpm

Permissible shear stress in bolts and shaft = 60 Mpa Number of bolts used = 8Pitch circle diameter of bolts = 1.6 X diameter of shaft. Find (i) Diameter of shaft (ii) Diameter of bolts (iii) Thickness of flange (iv) diameter of flange.

SubmissionAssignment TopicLast date for Submission

Dates for

Assignments:

S. No.

11 to 625-07-2011

27 to 1415-08-2011

315 to 2010-09-2011

421 to 2530-10-2011

Name of the Staff : Dr.S.V.S.S.SRINIVASA RAJUSubject: Managerial Economics and

Code: 55015Financial Analysis (MEFA)

Course: B.Tech (Mechanical Engineering) Year: (2011-2012)

Semester: IIIrd B.Tech (Ist Semester)Credits:TPC

4+1*04

Objective: To explain the basic principles of managerial economics, accounting and current business environment underlying business decision making.

Unit I Introduction to Managerial Economics:

Definition, Nature and Scope of Managerial EconomicsDemand Analysis: Demand Determinants, Law of Demand and its exceptions.

Unit- II Elasticity of Demand:

Definition, Types, Measurement and Significance of Elasticity of Demand. Demand Forecasting, Factors governing demand forecasting, methods of demand forecasting (survey methods, statistical methods, expert opinion method, test marketing, controlled experiments, judgmental approach to demand forecasting)

Unit -III Theory of Production and Cost Analysis:

Production Function Isoquants and Isocosts, MRTS, Least Cost Combination of Inputs, Cobb-Douglas Production function, Laws of Returns, Internal and External Economies of Scale.

Cost Analysis: Cost concepts, Opportunity cost, Fixed vs. Variable costs, Explicit costs Vs. Implicit costs, Out of pocket costs vs. Imputed costs. Break-even Analysis (BEA)-Determination of Break-Even Point (simple problems)- Managerial Significance and limitations of BEA.

Unit- IV Introduction to Markets & Pricing Policies:

Market structures: Types of competition, Features of Perfect competition, Monopoly and Monopolistic Competition. Price-Output Determination in case of Perfect Competition and Monopoly.

Objectives and Policies of Pricing - Methods of Pricing: Cost Plus Pricing, Marginal Cost Pricing, Sealed Bid Pricing, Going Rate Pricing, Limit Pricing, Market Skimming Pricing, Penetration Pricing, Two-Part Pricing, Block Pricing, Bundling Pricing, Peak Load Pricing, Cross Subsidization.

Unit -V Business & New Economic Environment:

Characteristic features of Business, Features and evaluation of Sole Proprietorship, Partnership, Joint Stock Company, Public Enterprises and their types, Changing Business Environment in Post-liberalization scenario.

Unit -VI Capital and Capital Budgeting:

Capital and its significance, Types of Capital, Estimation of Fixed and Working capital requirements, Methods and sources of raising finance.

Nature and scope of capital budgeting, features of capital budgeting proposals, Methods of Capital Budgeting: Payback Method, Accounting Rate of Return (ARR) and Net Present Value Method (simple problems)

Unit-VII Introduction to Financial Accounting:

Double-Entry Book Keeping, Journal, Ledger, Trial Balance- Final Accounts (Trading Account, Profit and Loss Account and Balance Sheet with simple adjustments).

Unit-VIII Financial Analysis through ratios:

Computation, Analysis and Interpretation of Liquidity Ratios (Current Ratio and quick ratio), Activity Ratios (Inventory turnover ratio and Debtor Turnover ratio), Capital structure Ratios (Debt- Equity ratio, Interest Coverage ratio), and Profitability ratios (Gross Profit Ratio, Net Profit ratio, Operating Ratio, P/E Ratio and EPS).

TEXT BOOKS:

1. Aryasri: Managerial Economics and Financial Analysis, 2/e, TMH, 2005.

2. Varshney & Maheswari: Managerial Economics, Sultan Chand, 2003.

REFERENCES:

1. Ambrish Gupta, Financial Accounting for Management, Pearson Education, New Delhi.

2. H. Craig Peterson & W. Cris Lewis, Managerial Economics, PHI, 4th Ed. 3. Suma Damodaran, Managerial Economics, Oxford University Press. 4. Lipsey & Chrystel, Economics, Oxford University Press. 5. S. A. Siddiqui & A. S. Siddiqui, Managerial Economics & Financial Analysis, New age International Space Publications. 6. Domnick Salvatore: Managerial Economics In a Global Economy, 4th Edition, Thomson. 7. Narayanaswamy: Financial AccountingA Managerial Perspective, PHI. 8. Raghunatha Reddy & Narasimhachary: Managerial Economics& Financial Analysis, Scitech. 9. S.N.Maheswari & S.K. Maheswari, Financial Accounting, Vikas. 10. Truet and Truet: Managerial Economics:Analysis, Problems and Cases, Wiley. 11. Dwivedi:Managerial Economics, 6th Ed., Vikas.

Codes/Tables: Present Value Tables need to be permitted into the examinations Hall.

Question Paper Pattern: 5 Questions to be answered out of 8 questions.

Out of eight questions, 4 questions will be theory questions and 4 questions should be problems. Each question should not have more than 3 bits.


Name of the Staff: Dr.S.V.S.S.SRINIVASA RAJUSubject : Managerial Economics and


Course: B.Tech (Mechanical Engineering)Year : (2011-2012)

Semester: IIIrd B.Tech (Ist Semester)

Unit I

Introduction to Managerial Economics:

Definition, Nature and Scope of Managerial EconomicsDemand Analysis: Demand Determinants, Law of Demand and its exceptions.

Learning objectives: At the end of this unit I the student will be able to :

1 Define Managerial Economics

2 Identify the factors that constitute scope of Managerial Economics. 3 Explain significance of Managerial Economics and how it helps business managers in performing decision making function. 4 Define what is Demand 5 Analyze the important factors determining demand for a commodity. 6 List out the conditions or situations under which law of demand does not holds good. 7 Explain assumptions of Law of Demand. 8 The linkage of Managerial Economics with other sciences.

Unit- II

Elasticity of Demand:

Definition, Types, Measurement and Significance of Elasticity of Demand. Demand Forecasting, Factors governing demand forecasting, methods of demand forecasting (survey methods, statistical methods, expert opinion method, test marketing, controlled experiments, judgmental approach to demand forecasting)

Learning objectives: After completion of Unit-II the Students will be able to know,

1Quantitative measurement of change in Quality demanded as a result ofchange in demand

determinant.

2How Elasticity of Demand helps businessman in fixing right price for hisproduct.

3Factors determining nature of Demand for a product.

4Importance of estimating demand for commodities.

5Types of Elasticity of Demand and measurement of the same.

6The significance of elasticity of demand

7Factors to be taken into account while undertaking demand forecastingactivity.

8Possible approaches to forecast demand of new and established products.

Unit -III

Theory of Production and Cost Analysis:

Production Function Isoquants and Isocosts, MRTS, Least Cost Combination of Inputs, Cobb-Douglas Production function, Laws of Returns, Internal and External Economies of Scale.

Cost Analysis: Cost concepts, Opportunity cost, Fixed vs. Variable costs, Explicit costs Vs. Implicit costs, Out of pocket costs vs. Imputed costs. Break-even Analysis (BEA)-Determination of Break-Even Point (simple problems)- Managerial Significance and limitations of BEA.

Learning objectives: After studying Unit-III the Students should be able to,

1 Define various types of costs

2 Distinguish between one type of cost and the others. 3 Analyze the nature of various costs and how they influence the total cost. 4Explain the significance of cost analyses in taking right decisions in business

enterprises.

5Determine the level of output at which there is neither profit nor loss.

6Calculate / Identify the volume of sales at which a desired amount of profit can be

earned.

7 Define what do you mean by Production Function 8 Classify various production Functions. 9 Explain Input Output relationship in the short run and in the long run 10 Identify least cost combination of inputs. 11 Find out the different combinations of inputs which yields desired amountof output.

12Explain the economies and diseconomies of large scale production /business

relations.

Unit- IV

Introduction to Markets & Pricing Policies:

Market structures: Types of competition, Features of Perfect competition, Monopoly and Monopolistic Competition. Price-Output Determination in case of Perfect Competition and Monopoly.

Objectives and Policies of Pricing - Methods of Pricing: Cost Plus Pricing, Marginal Cost Pricing, Sealed Bid Pricing, Going Rate Pricing, Limit Pricing, Market Skimming Pricing, Penetration Pricing, Two-Part Pricing, Block Pricing, Bundling Pricing, Peak Load Pricing, Cross Subsidization.

Learning objectives: After completion of this Unit the Students will be able to

1 Classify the markets based on type of completion prevailing for a product

2 Explain the role of time factor in the determination of price.

3 Also explain price out determination in different market situation.

4 Describe the features of different markets.

5 Explain different pricing strategies.

6 Analysis the situations under which what type of price strategy must be adopted in pricing the products.

Unit -V

Business & New Economic Environment:

Characteristic features of Business, Features and evaluation of Sole Proprietorship, Partnership, Joint Stock Company, Public Enterprises and their types, Changing Business Environment in Post-liberalization scenario.

Learning objectives: After completion of this Unit the Students must be able to,

1 Define the term Business and explain feature of Business.

2 Explain the forms of organizing business enterprises. 3 Determine the factors which help in identifying suitable form of organization. 4 Pinpoint the rationale of the present large-scale presence of public enterprises in our economy. 5 Outline economic and non-economic objectives of public enterprises. 6 Analysis various forms of organizing public enterprises. 7 Explain problems of PEs and also suggest measures to solve the same. 8 Analyze the changes in business environment ( Recent trends in Business sector )

Unit -VI

Capital and Capital Budgeting:

Capital and its significance, Types of Capital, Estimation of Fixed and Working capital requirements, Methods and sources of raising finance.

Nature and scope of capital budgeting, features of capital budgeting proposals, Methods of Capital Budgeting: Payback Method, Accounting Rate of Return (ARR) and Net Present Value Method (simple problems

Learning objectives: After Successful completion of this Unit the Students will be able to,

1 Estimate capital requirements of a business enterprises.

2 Describe the sources of mobilization long-term & short-term capital. 3 Explain factors determining working capital and fixed capital requirements. 4 Evaluate the investment opportunities in terms of cost and benefit. 5 Identify the best investment opportunity which yields higher rate of return.

6 Explain importance of capital budgeting and also explain basic procedure involved in

selection of best investment proposal

Unit-VII

Introduction to Financial Accounting:

Double-Entry Book Keeping, Journal, Ledger, Trial Balance- Final Accounts (Trading Account, Profit and Loss Account and Balance Sheet with simple adjustments).

Learning objectives: After Successful completion of Unit VII the Students will be able to

1 Record the business transaction systematically in the books of accounts.

2 Post journal entries into concerned accounts in the ledger book. 3 Find out the gross and net results of business operations. 4 Prepare balance sheet at the end of business year. 5 Distinguish between fixed assets and current assets, Deft and equity, Gross profit and net profit, Debtors and creditors. 6 Explain the basic accounting concepts and conventions and also give examples.

Unit-VIII

Financial Analysis through Ratios:

Computation, Analysis and Interpretation of Liquidity Ratios (Current Ratio and quick ratio), Activity Ratios (Inventory turnover ratio and Debtor Turnover ratio), Capital structure Ratios (Debt- Equity ratio, Interest Coverage ratio), and Profitability ratios (Gross Profit Ratio, Net Profit ratio, Operating Ratio, P/E Ratio and EPS).

Learning objectives: At the end of this unit VIII the student will be able to

1 Analyze the liquidity, solvency, profitability of the business organization.

2 Calculate liquidity ratios, activities ratio, solvency ratios and profitability ratios

3 Elaborate the importance of finance function for evaluating the economic status of a business unit. 4 Explain how different ratios help concerned parties in interpreting financial position of business in general and interested financial aspect of business in particular.





MODEL QUESTION PAPER 1

MANAGERIAL ECONOMICS & FINANCIAL ANALYSIS

Time: 3 hoursMarks : 5 x 16 = 80Max. Marks: 80

Answer any FIVE questions

All questions carry equal marks - -

1. State the Law of Demand. What are the various factors that determine the demand for a mobile phone? 2. What is meant by Elasticity of demand. What are the factors that determine the elasticity demand?

3. (a) Discuss the benefits and limitations of Break even Analysis.

(b) With assumed data, illustrate the following:

i. Breakeven output and sales value

ii. Margin of safety

iii. P/ v ratio

iv. Output to achieve targeted profit

4. (a) What are the salient features of Monopoly?

(b) In what different aspects monopoly is distinct from perfect competition.

5. What are the pros and cons of privatisation ?

6. What do you understand by working capital ? Explain the various factors influencing working capital requirements 7. Explain the following concepts and illustrate their treatment with imaginary data.

i. Depreciation

ii. Prepaid expenses

iii. Reserve for bad and doubtful debts

iv. Income received in advance

8. (a) From the following information, calculate

i. Debt Equity ratio

ii. Current ratio

Net profit after deducting interest and taxes 12% Debentures of the face value of Amount provided towards taxationRs.Rs.

Debentures1,40,000Bank balance 30,000

Long term loans70,000Sundry Debtors 70,000

General reserve40,000

Creditors66,000

Bills payable14,000

Share capital1,20,000

(b) Calculate Amounts receivables Turnover ratio form the following information.

Rs.

6,00,000

15,00,000

1,20,000

***

MODEL PAPER 2


Answer any five of the following, all questions carry equal marks

Marks : 5 x 16 = 80

1. What is Managerial Economics? Explain its focus areas.

2. What are the needs for Demand Forecasting? Explain various steps involved in Demand Forecasting.

3. (a) Distinguish between the following:

i. Average Cost and Marginal Cost

ii. Explicit Cost and Implicit Cost

iii. Short Run Average Cost and Long Run Average Cost

iv. Variable Cost and Semi Variable Cost

(b) Diagrammatically represent the relationship between Average Fixed Cost, Average variable Cost, Unit Cost and Marginal Cost. 4. (a) Define Market and explain how Markets are classified?

(b) What are the important features in any Market Structure?

5. What are the different types of companies and distinguish between Private and Public Company.

6. Explain the right procedure for a Capital Budgeting decision.

7. The following Trial Balance belongs to Siva Ram as on 31st December 2004.Prepare a Trading, Profit and Loss Account and Balance Sheet.

Debit (Rs.)Credit (Rs.)

Purchases and Sales1,65,6252,56,650

Sales returns and Purchase Returns4,2502,120

Sundry debtors & Creditors40,20030,720

Bills receivable and Bills payable26,72020,625

Opening stock1,20,500

Wages35,000

Fuel and power10,500

Postage and stationery5,750

Trade expenses7,500

Interest received9,500

Bad debts4,500

Drawings and capital10,0001,10,930

4,30,5454,30,545

Adjustments

i. Closing stock was valued at Rs.95,000

ii. Wages were outstanding by Rs. 5,000

iii. Outstanding interest receivable Rs.500

9. (a) The cost of a project is Rs 50,000 which has an expected life of 5years .the cash

flows for next five years are Rs 24,000; Rs 26,000;Rs,20,000; Rs17,000 and

Rs16,000 respectively. Determine thePay Back Period.

(b) A firm is considering two projects each with an initial investment ofRs

20,000 and a life of 4Byears.The following is the list of estimated cashinflows after taxes.

Estimated cash inflows proposals for I,II&III

YearProposal -IProposal -IProposal -I

112,50011,75013,500

212,50012,250,12,500

312,50012,50012,250

412,50013,50011,750

Total50,00050,00050,000

Determine Accounting Rate of Return (ARR) on (a) Average Capital(b) Original Capital

Employed

***

MODEL PAPER 3


Answer any five of the following , all questions carry equal marks

Marks : 5 x 16 = 80

1. Managerial Economics is the study of allocation of resources available to a firm or other unit of management among the activities of that unit. Explain.

2. (a) What do you understand by Elasticity of demand. How is it classified.

(b) Determine price elasticity of demand given that the quantity demandedof a

product is 1000 units when the price is Rs. 100 and when the pricedeclines to Rs.90,

demand increases to 1500 units.

3. Define production function. How is it helpful while taking output decisions?

4. (a) Define Market and explain how markets are classified?

(b) What are the important features in any market structure?

5. Explain the features of sole trader form of organization. Discuss the merits and demerits of sole trader from of organization

6. Explain the concept of capital budgeting and what is its practical utility ?

7. The following are the closing balances extracted from the books of Bhargav for the year ending 31st December 2004 with the help of which prepare Trading Account, Profit and Loss A/c and Balance Sheet.

Debit balancesRs.Credit BalancesRs.

Opening stock6,050Sales13,720

Purchases9,030Purchases returns130

Carriage220Capital3,000

Drawings450Creditors4,500

Investments3,800Discounts received350

Debtors2,500Mortgage loan4,000

Cash1,350

Printing charges1,200

Wages1,100

25,70025,700

(a) Closing stock was valued at Rs.16,000

(b) Wages outstanding by Rs.900

(c) Outstanding discounts receivable Rs.150

(d) Write off bad debts Rs. 500

(e) Create a Reserve for Bad and doubtful debts Rs. 500

8. Explain different types of Ratios and Limitations of Ratio Analysis..

***





LESSON PLAN / TEACHING PLAN

Total Periods: 74

NumberCumulative

S.NODescription of the TopicNumber of

of Hours

Hours

----UNIT- I--------

1Introduction to Economics11

2Introduction to Managerial Economics12

3Scope & significance of Managerial Economics13

4Relation of Managerial Economics with others subjects14

5Introduction to Demand & Types15

6Demand Determinants16

7Law of Demand Def , Assumptions & Exceptions17

8Discussion of old Question papers18

----Total Periods08---

----UNIT- II--------

1Elasticity of Demand, its definitions, Types109

2Types of Price Elasticities110

3Factors determining Elasticity of Demand111

4Significance of Elasticity of Demand112

5Meaning of Demand Forecasting & its significance113

6Criteria for good Forecasting114

7Factors involved in Demand Forecasting115

8Methods of Demand Forecasting116

9Discussions on old question papers117


----UNIT- III--------

1Production & Production function, Assumptions118

2Types of production Functions, their utility119

3Laws of production Function120

4Economies & Diseconomies of scale121

5Cost concepts, Cost classifications122

6Break Even Analysis, Assumption, Significance & Limitations123

NumberCumulative


of Hours

Hours

7Problems of BEA124

8Arithmetical & Graphical presentation of BEA125


----UNIT- IV--------

1Market , its types, their features227

2Price output determination in Monopoly128

3Price output determination in Perfect Competition129

4Price output determination in Monopolistic Competition130

5Pricing Function, its importance131

6Different Pricing Strategies233

----Total Periods08----

----UNIT- V--------

1Business, characteristics of Business, Types235

2Types of Business Organizations-Sole Proprietorship136

3Partnership-Features, Advantages & Demerits137

4Joint Stock Company-Features, Merits, Demerits138

5Formation of a Company139

6Differences between Private Limited & Public Limited Company.241

7Public Enterprises-Features, advantages and demerits142

8Forms of organizing PEs143

9Objectives, problems and solutions of PEs144

10Changing business environment145


----UNIT- VI--------

1Capital-definition, significance, Types146

2Fixed Capital-def; importance estimation and sources147

3Working Capital-def; importance components sources and estimation,249

factors

4Capital Budgeting- definition, feature, importance, steps involved251

5Methods of Capital Budgeting; Payback Methods152

6Accounting Rate of Return, merits demerits153

7Net Present Value Method, merits, demerits154


NumberCumulative


of Hours

Hours

----UNIT-VII--------

1Introduction to Accounting155

2Double Entry Book Keeping156

3Rules of Debit & Credits & Types of Accounts258

4Recording business transactions in Journal260

5Posting Journal entries into concerned accounts161

6Balancing accounts & preparations of trial balance263

7Rules of preparing Final Accounts164

8Preparation of Trading & Profit and Loss Account266

9Preparation of Balance Sheet with simple examples369


UNIT- VIII

1Analysis & Interpretation of Financial Statements, methods170

2Ratio Analysis, Types of Ratios -Liquidity Ratios, calculation171

3Activity Ratio-significance, calculation172

4Capital Structure Ratios-significance, calculation173

5Profitability Ratio, significance, calculation275






ASSIGNMENT- I(UNIT- I)

1. Managerial Economics is the discipline which deals with the application of Economic Theory to Business Management. explain

2. Managerial Economics is the study of the allocation of resources available to a firm. Explain

3. Managerial Economics is prescriptive rather than descriptive in character. Explain this statement.

4. Discuss in detail the role of Economics in Engineering Industry and its influence on the Technical Decisions. 5. Define Managerial Economics. Explain its relationship with other branches and also explain the role of managerial economist in running business enterprise on prudent commercial practice.

6. What is Demand Analysis? Explains the factors influencing the demand for a product.

7. What is meant by Demand ? Everyone desires for an Ambassador Car does this mean that the Demand for Ambassador Car is large ? 8. State and explain the Law of Demand. Are there any exceptions to the Law ?

ASSIGNMENT- II(UNIT- II)

1.What is meant by Elasticity of Demand? Explain by giving suitableexamples, how Elasticity

ofDemand determines the Price Policy of a firm.

2.Explain the concepts and kinds of Elasticity of Demand that are relevant tothe Managers of a

Firm.

3What is Cross Elasticity of Demand? Is it positive for substitutes or for complements? Show

in a diagram the curve relating to the Demand for coffeeto the price of tea.

4Define Income Elasticity of Demand and distinguish its various types? Howdoes Income

Elasticity differ from Price Elasticity of Demand?

5.Explain the factors determining Elasticity of Demand?

6.What do you mean by Demand Forecasting? Explain briefly variousmethods of Demand

Forecasting?

7.What criteria should be adopted to choose a good Forecasting method indetermining firms

sales?

8.What are the factors that are considered while estimating a firms sale?Enumerate the

difficulties in forecasting sale of consumer durables?

ASSIGNMENT- III(UNIT- III)

1.Define production function, Discuss in detail the different types of productionfunction.

2. What is meant by internal and external economies of scale? What are itssources? And what

are various types of internal economies available to a firm?

3.Explain and illustrate the Law of Diminishing Returns and Law of Returnsto scale?

4.What is optimum combination? Explain the principles of least costcombination of factors

5. Distinguish between Law of Diminishing Returns and Law of Returns to Scale?

6. What are Isocosts and Isoquants ? Do they intersect each others?

7. Explain the following with reference to production Function? a. Marginal Rate of Technical Substitution (MRTS) b. Variable Proportions of Factors 8.Explain the relationship between Marginal Cost, Average Cost and Total Cost,assuming a

short run Non Linear Cost Function?

9.What is Opportunity Cost? Give some examples of Opportunity Cost. How is itrelevant for

Managerial Decisions?

10. Write a short notes on

a) Fixed Cost and Variable Cost

b) Out of Pocket Costs and Imputed Cost

c) Explicit Cost and Implicit Cost.

d) Shutdown Cost and Abandonment Cost

11.What is meant by Break Even Analysis? Explain the uses and Limitations ofBEP

12.Describe the Break Even Point with the help of a diagram and its uses inBusiness

Decision Making?

13.How do you determine BEP in terms of Physical Units and Sales Value?

14.If sales is 10,000 units and selling price Rs.20 per units, variable cost Rs.10per unit and

fixed cost is Rs.80,000, find out BEP in units and in salesrevenue. What is the Profit earned?

What should be the Sales for earning aProfit of Rs. 60,000?

15.The PV ratio of IBM Ltd. Is 40% and the Margin of Safety is 30% you arerequired to work

out the BEP and Net Profit, if the Sales Volume isRs.14,000.

16. Sales are Rs.1,10,000 producing a Profit of Rs.4,000 in Period I, Sales areRs1,50,000

producing a Profit of Rs,12,000 in Period II. Determine BEPand Fixed Expenses.

ASSIGNMENT- IV(UNIT- IV)

1. Compare between Monopoly and Perfect Competition or Distinguish betweenPerfect and

Imperfect Markets?

2. What is Price Discrimination? What are the essential conditions for Price Discrimination?

3. What are the causes for the emergence of Monopoly?

4. Explain the objectives of Pricing and Determinants of Price of a Product?

5. What are the features of Monopolistic Competition? How is it different from Monopoly?

6. Explain how the price is determined under conditions of Perfect Competition. Illustrate this with the help of a diagram?

7. Define Monopoly. How is Price determined under Monopoly?

8.What are the various popular Pricing practices? Which of them are mostsuitable for a firm

when facing competition?

ASSIGNMENT- V(UNIT- V)

1.What are the characteristics of a Business Unit?

2.Explain the features of Sole Trader form of Organization. Discuss theadvantages and

limitations of Sole Trader form of Organization?

3.Evaluate the Partnership form of Business organization. How does it overcome the limitation

of Proprietary form of Business?

4.What qualities do you expect in persons to become good partners inBusiness?

5.What do you understand by Joint Stock Company? What are its salientfeatures?

6.What are the reasons for Joint Stock Company being popular as a form oforganization?

7. Discuss the factors affecting the choice of forms of Business Organization?

8. Distinguish between Public Limited and Private Limited Company?

9. What is need for Public Enterprises? Explain the recent achievements ofPublic

Enterprises.

10.Explain briefly various steps involved in Formation of a Company?

11.Distinguish between Public Corporation and Government Company?

12Examine the impact of changes that have taken place in BusinessEnvironment on Business

Enterprise Functioning.

ASSIGNMENT- VI(UNIT- VI)

1. Describe the institutions providing Long Term Finance.

2. What are the major sources of Short Term Finance?

3. What are the components of Working Capital? Explain each of them?

4. Explain the following with respect to Working Capital Management

a. Kinds of Working Capital

b. Significance of maintaining adequate Working Capital.

c. Estimation of Working Capital requirements.

5.What do you understand by Working Capital Cycle and what is itsimportance?

6.What is the importance of Capital Budgeting? Explainthebasicstepsinvolved in

evaluating Capital Budget Proposals?

7.What are the Merits and Limitations ofPay Back Period?HowdoesDiscounting

Approach overcome the limitations of Pay Back Method?

8.What is meant by Discounting and Time Value of Money? How is it usefulin Capital

Budgeting?

9.A business firm is thinking of choosingthe right machines for their purposeafter

financial evaluation of the proposal. The Initial Cost and the Net CashFlow over years. (

Income less Running Expenses but not Depreciation ) tothe Business Firm have been

calculated for each machine as follows

Machine X (Rs.)Machine Y(Rs.)

Initial Cost20,00028,000

Net Cash Flow1 year8,00010,000

2 year12,00012,000

3 year9,00012,000

4 year7,0006,000

5 year6,0006,000

Choose the machine based ona. Payback Period

b. Accounting Rate of Return

10. A company has at hand two proposals for consideration (M and N). Thecost of the

proposals in both the cases is Rs. 5,00,000 each. A DiscountFactor of 12% may be used

to evaluate the proposals. Cash Inflows aftertax are as under.

YearProposal M (Rs.)Proposal N (Rs.)

1 year1,50,00050,000

2 year2,00,0001,50,000

3 year2,50,0002,00,000

4 year1,50,0003,00,000

5 year1,00,0002,00,000

Which one will you recommend under Present Value Method?

ASSIGNMENT- VII(UNIT- VII)

1. Explain the basic Accounting Concepts and Conventions. Give examples.

2. What do you understand by Double Entry Book Keeping? What are its advantages?

3. What is Journal? How is it ruled?

a. Define Ledger? State what is meant by Sub Division Ledger

4. What is Three Column Cash Book? What is Contra Entry? Illustrate

5. What is Trial Balance? State the main objectives of preparing the Trial Balance. Explain the rules of preparing the Trial Balance. 6. What do you mean by Final Accounts? What are its Constituents? Name them and briefly explain the purpose of each of them.

7. What are Financial Statements? Why they needed? How are they prepared?

8. Pass Journal Entries for the following transactions in the books of M/s. Ravi on 1st August,2003 commenced business with Rs.1,00,000

DateParticularsAmount(Rs.)

4.8.2003Purchased Goods25,000

5.8.2003Purchased Furniture4,000

6.8.2003Opened Bank Account with50,000

10.8.2003Sold Goods15,000

11.8.2003Sold Goods to Srihari10,000

15.8.2003Purchased Goods from Kalian5,000

16.8.2003Paid Commission100

20.8.2003Printing & Stationery250

25.8.2003Purchased Typewriter2,500

21.8.2003Drawn Money from Bank6,000

27.8.2003Received Interest150

30.8.2003Paid Rent Rs1,500/- and Salary800

9. Journalize the following Transactions and post them to the Ledger.

a. Ram invests Rs.10000 in cash

b. He bought goods worth Rs.2000 from Shyam

c. He bought a Machine for Rs.5000 from Lakshmi on Account

d. He paid to Lakshman Rs.2000

e. He Sold Goods for Cash Rs.3000

f. He Sold goods to A on account Rs.4000

g. He paid to Shyam Rs.1000

h. He Received Amount from A Rs.2000

10. In the books of Hyma prepare trading, profit & loss account and balance sheet for the year endings 31st March 2003 from the following particulars.

S.NOPARTICULARSRs.

1Opening Stock5,000

2Salaries500

3Sales70,400

4Motor Car25,000

5Traveling Expenses700

6Cash in hand5,000

7Capital30,000

8Interest1,800

9Bills Receivables4,000

10Wages2,000

11Furniture & Fixtures3,600

12Sundry Debtors14,000

13Lighting350

14Printing & Stationery100

15Postage50

16Returns Inwards6,000

17Purchase25,000

18Commission1,500

19Bank Balance10,000

20Advertisement1,000

21Sundry Creditors5,200

Adjustments

1.Closing StockRs.40,000

2. Write off Bad DebtsRs.100

3.Prepaid CommissionRs.200

4.Outstanding SalariesRs.150

ASSIGNMENT- VIII(UNIT- VIII)

1. What are the types of Financial Statements of a Business Unit and explain how differently they interpret the Financial Data

2. Explain the concept of Liquidity and narrate its importance through suitable examples with some assured data. 3. What do you understand by Solvency Position of a Manufacturing Organization? How is it evaluated? Illustrate with assumed data.

4. State the different types of Turnover Ratios and Profitability Ratios and explain their Significance. 5. As a Financial Analyst, what precautions would you take while interpreting Ratios meaning-fully?

6. Selected Financial Information about Sri Krishna Traders limited as given below :

Particulars20012002

Sales6,00,0004,30,000

Cost of goods sold5,70,0003,25,000

Debtors72,00030,000

Inventories1,14,00055,000

Cash15,0008,000

Other Current Assets40,00027,000

Current Liabilities1,60,0001,10,000

Compute the Current Ratio, Quick Ratio, Debt Collection Period and Inventory Turnover Ratios for the above two years and comment on the result.

Name of the Staff : M. V. R. Durga PrasadSubject : Metrology & Surface Engineering

Code: 55016Course : B.Tech (Mechanical Engineering)

Year: (2011-2012)Semester : IIIrd B.Tech (Ist Semester)

UNIT I

Systems of limits and fits: Introduction, normal size, tolerance limits, deviations, allowance, fits and their types unilateral and bilateral tolerance system, hole and shaft basis systems interchangeability and selective assembly. Indian standard Institution system British standard system, International Standard system for plain and screwed work.

Learning Objective: After completion of this Unit the student should be able to ----

1. Differentiate between Metrology & Metallurgy.

2. Differentiate between Limits & Fits, Tolerances. 3. Discuss the limits & fits, tolerances and their uses in Automobile, HMT Industries. 4.Identify whether the following fits are Hole based or Shaft based. Convert of H7 C8, J6 h5, H6 n5. etc. into their counter parts. 5. Explain Selective assembly and Interchangeability concept with suitable examples, graphs used. 6. Explain as the ISI systems of fits and tolerances and its uses in industries. 7. Explain as the BIS systems of fits and tolerances and its uses in industries (1965). 8. Explain International standard system for plain and screwed works with suitable examples.

Assignment

1. Explain the terms: Hole based system, Shaft based system. Enumerate the difference between them.

2. What is the difference between tolerance and allowance?

3. Why might you use a shrink fit rather than welding to join two steel parts? What does the word shrink imply?

4. Determine and Sketch the limits of tolerance and allowance for a 50mm shaft

and hole pair designated H7 d8. The basic size lies in the range of 30 50 mm. The multiplies for grades 7 and 8 are 16 and 25 respectively. The fundamental deviation ford shaft is (-16 D 0.44) microns.

UNIT II

LINEAR MEASUREMENT: Length standard, line and end standard, slip gauges calibration of the slip gauges, Dial indicator, micrometers.

MEASUREMENT OF ANGLES AND TAPERS: Different methods Bevel protractor angle slip gauges spirit levels sine bar Sine plate, rollers and spheres used to determine the tapers. LIMIT GAUGES: Taylors principle Design of go and No go gauges, plug ring, snap, gap, taper, profile and position gauges.


1. Explain the linear Measurement and its uses in Industry.

2. Mention the types of slip gauges as per IS: 2984 1966. 3. Calibrate the slip gauges and dial indicators. 4. List the types of Micrometers and how to calibrate. 5. Explain the construction details of Bevel protractor, Angle slip gauges and Sine bars. 6. Identify the materials used for Sine plate, Rollers and Spheres and their uses. 7. Derive the Taylors principle in design of tolerances. 8. Design the GO and NOGO gauges and mention the types of GO and NOGO gauges for 20.4mm. 9. Explain Plug, Ring, Snap, Gap, Taper Profile and Position gauges and their uses.

Assignment;

1. What are the different grades of gage blocks and, why do they come in sets?

2. What keeps gage blocks together when they are wrung together?

3. Describe the estimation of least count in Differential screw micrometer. Explain its working with a sketch.

4. Differentiate between line and end standards with reference to their characteristics.

5. Explicate the principle of sine bar for angular measurement.

6. Show the arrangement of angle gauges with neat sketches to measure.

(i) 10o 20 and (ii) 56.26o with minimum number of gauges from a set of

[ 1o, 3o , 9o , 27o , 41o]

[1, 3, 9, 27] and

[3, 6, 18, 38]

7. Discuss various methods of taper measurement of plug and ring gauges.

8. State the Talyors principle of gauges design.

10. Design general type Go and NO GO gauges for components having 55H8/d9 fit.The basic size falls in the diameter range of 50 80 mm. The fundamental deviation for d shaft = (-16 D 0.41) microns. The multipliers for 8 and 9 grades are 25 and 40. Take wear allowance as 10% of gauge tolerance. Sketch the gauges with values.

UNIT III

OPTICAL MEASURING INSTRUMENTS: Tool - makers microscope and its uses collimators, optical projector optical flats and their uses, interferometer.

FLAT SURFACE MEASUREMENT: Measurement of flat surfaces instruments used straight edges surface plates optical flat and auto collimator.


1. Explain tool - makers microscope construction and working principle and its uses.

2. Explain collimators construction and working principle and its uses. 3. Explain optical projectors construction and working principle and its uses. 4. Explain optical flats construction and working principle and its uses. 5. Explain interferometer construction and working principle and its uses. 6. Measure the flat surfaces using straight edges surface plates optical flat and auto collimator.

Assignment;

1. What are the numerous fringe contours in checking slip gauges by means of optical flats? Describe the method of experimental testing of such surfaces.

2. Explain the working principle of a Autocollimator.

3. Explicate the use of interferometer in measuring flatness of surfaces.

4. Explicate the uses of

(a) Autocollimator (b) Straight edge (c) Surface plates.

5. Describe the working principle of tool makers microscope. What are its uses.

6. Explicate the utility of straight edge and surface plate in laboratories.

UNIT IV

SURFACE ROUGHNESS MEASUREMENT: Differences between surface roughness and surface waviness-Numerical assessment of surface finish CLA, R, R.M.S Values Rz values, R10 value, Methods of measurement of surface finish-profilograph. Talysurf, ISI symbols for indication of surface finish.


1. Differentiate between Surface roughness and surface waviness.

2. Identify various types of surface roughness and surface waviness. 3. Numerical assessment of surface finish CLA, R, R.M.S Values Rz values, R10 value 4. Explain the working principle of profilograph and its uses. 5. Explain the working principle of Talysurf and its uses. 6. Indicate the surface finish using ISI symbols in a drawing.

Assignment;

1. Indicate the following on a typical surface.

(i) Waviness height and width

(ii) Roughness width and height.

(iii) Lay and Flaw. Define these terms.

2. State how surface finish is designated on drawings. How do you represent machining allowance of 0.5 mm, parallel lay, cut off length 2mm, finish 5mm Ra on a drawing.

3. What are the factors affecting surface roughness? What is the necessity for controlling the surface texture?

4. Explicate the details of construction, principle and operation of stylus.

5. What are various orders of geometrical irregularities on surfaces? How these are classified?

6. Describe with a neat sketch the construction, principle and operation of Tomlinson surface meter.

7. Differentiate between a gauge and comparator.

UNIT V

MEASUREMENT THROUGH COMPARATORS: Comparators Mechanical, Electrical and Electronic Comparators, pneumatic comparators and their uses in mass production.


7. Explain the working principle of Comparators Mechanical, Electrical and Electronic Comparators, pneumatic comparators and their uses in mass production.

Assignment;

1. Differentiate between a gauge and comparator.

2. Explicate the working principle of

(i) Mechanical comparator (ii) Electrical comparator

UNIT-VI

SCREW THREAD MEASUREMENT: Element of measurement errors in screw threads measurement of effective diameter, angle of thread and thread pitch, profile thread gauges.


1. Explain the errors in screw threads.

2. How the measurement of effective diameter, angle of thread and thread pitch, profile thread gauges are done.

Assignment;

1. Explain how the principle of visual gauging heads is incorporated in multigauging machines.

2. Discuss the causes of following errors in screw thread pitches.

(i) Progressive error(ii) Periodic error(iii) Drunken error(iv) Irregular errors.

3. Elucidate the Effective diameter measurement by two wire method

4. Elucidate measurement method of thread angle by two ball method.

5. Measurement of effective diameter by two wires and micrometer is not

accu-rate -Explain.UNIT-VIISURFACE ENGINEERINGSurface texture and properties, surface cleaning techniques, surface integrity, wear and its measurements, lubricants and its selection for reducing wear, principles of corrosion and remedial measures. Laser applications for surface modifications.


3. Explain various surface cleaning techniques.

4. Discuss the following a) Surface Integrity b) Principles of corrosion c) Laser applications for surface modificationsAssignment;1. Enumerate Various wear measurement Instruments 2. How to reduce wear and what type of lubricants suitable for reducing the wear. UNIT-VIII

SURFACE TREATMENTS

Mechanical surface treatment and coating, case hardening and surface coating, thermal spraying, vapor deposition, Ion implementation, Diffusion coating, Electro plating, Electro less plating and Electro forming, Cermic, Organic and Diamond coating.


1. Explain various surface treatment processes, characteristics, applications.

2. Explain various surface coatings .

3. Explain thermal and mechanical modification of surfaces.

Assignment;

1. Explain various surface treatment processes with sketches

2. write characteristics and applications of surface treatment processes. 3.Explain various surface coatings . 4.Explain thermal and mechanical modification of surfaces

(55016)

METROLOGY & SURFACE ENGINEERING

Learning Objective Plan

Differentiate between Metrology & Metallurgy.1 hr

Differentiate between Limits & Fits, Tolerances.1 hr

Discuss the limits & fits, tolerances and their uses in Automobile, HMT Industries.

1hr

Identify whether the following fits are Hole based or Shaft based. Convert of H7 C8, J6 h5, H6 n5. etc. into their counter parts.

1hr

Explain Selective assembly and Interchangeability concept with suitable examples, graphs

used.1hr

Explain as the ISI systems of fits and tolerances and its uses in industries.1hr

Explain as the BIS systems of fits and tolerances and its uses in industries (1965).

1hr

Explain International standard system for plain and screwed works with suitable examples.

1hr

Explain the linear Measurement and its uses in Industry.1hr

Mention the types of slip gauges as per IS: 2984 1966.1hr

Calibrate the slip gauges and dial indicators.1hr

List the types of Micrometers and how to calibrate.1hr

Explain the construction details of Bevel protractor, Angle slip gauges and Sine bars.

2 hrs

Identify the materials used for Sine plate, Rollers and Spheres and their uses.

1hr

Derive the Taylors principle in design of tolerances.1hr

Design the GO and NOGO gauges and mention the types of GO and NOGO gauges for

20.4mm.1hr

Explain Plug, Ring, Snap, Gap, Taper Profile and Position gauges and their uses.

1hr

Explain tool - makers microscope construction and working principle and its uses.

1hr

Explain collimators construction and working principle and its uses.1hr

Explain optical projectors construction and working principle and its uses. 1hr

Explain optical flats construction and working principle and its uses.1hr

Explain interferometer construction and working principle and its uses.1hr

Measure the flat surfaces using straight edges surface plates optical flat and auto

collimator.2hrs

Differentiate between Surface roughness and surface waviness.1hr

Identify various types of surface roughness and surface waviness.1hr

Numerical assessment of surface finish CLA, R, R.M.S Values Rz values, R10 value

4hrs

Explain the working principle of profilograph and its uses.1hr

Explain the working principle of Talysurf and its uses.1hr

Indicate the surface finish using ISI symbols in a drawing.1hr

Explain the working principle of Comparators Mechanical, Electrical and Electronic Comparators, pneumatic comparators and their uses in mass production.

4hrs

Explain Gear measuring instruments, Gear tooth profile measurement, Measurement of diameter, pitch, pressure angle and tooth thickness.

4hrs

Explain the errors in screw threads.1hr

How the measurement of effective diameter, angle of thread and thread pitch, profile

thread gauges are done.2hrs

Prepare the acceptance charts for the machines.1hr

METROLOGY & SURFACE ENGINEERING

Subject Code:55016

TEACHING PLAN

Name of the Faculity:M.V.R.D.PRASAD

Class: III. B.Tech, Ist semester, Mech. Engg

1.Introduction01

2.Normal size, Tolerance01

3.Limits, Deviations,01

S.NoBrief Note of Topic(s)No. of Periods

4.Allowance, Fits and01

their types

5.Unilateral and Bilateral tolerance system02

6.Hole and Shaft basis systems01

7.Interchangeability and Selective Assembly.01

8.Indian standard Institution system, British standard system,01

9.International Standard system for plain ad screwed work.01

UNIT - II

10.LINEAR MEASUREMENT: Length standard, line and end

standard.01

11.Slip gauges calibration of the slip gauges01

12.Dial indicator, Micrometers01

13.MEASUREMENT OF ANGLES AND TAPERS: Different methods01

14.Bevel protractor Angle Slip gauges01

15.Spirit levels Sine bar Sine plate, Rollers and Spheres used to02

determine the tapers.

16.LIMIT GAUGES: Taylors principle01

17.Design of Go and No Go gauges, Plug ring01

18.Snap, Gap, Taper, Profile and Position gauges.02

UNIT III

19.OPTICAL MEASURING INSTRUMENTS

20.Tool makers microscope and its uses01

21.Collimators, Optical projector02

22.Optical flats and their uses01

23.Interferometer01

24.FLAT SURFACE MEASUREMENT: Measurement of flat surfaces01

25.Instruments used Straight edges Surface plates01

26.Optical Flat and Auto Collimator01

UNIT IV

SURFACE ROUGHNESS MEASUREMENT:

27.Differences between surface roughness and surface01

waviness

28.Numerical assessment of surface finish CLA, R, R.M.S Values02

29.Rz values, Rz value01

30.Methods of measurement of surface finish-Profilograph01

31.Talysurf01

32.ISI symbols for indication of surface finish.01

UNIT V

33.MEASUREMENT THROUGH COMPARATORS: Comparators03

Mechanical, Electrical and Electronic Comparators

34.Pneumatic comparators and their uses in mass production01

UNIT VI

35.SCREW THREAD MEASUREMENT: Element of measurement

errors in screw threads measurement of effective diameter, angle04

of thread and thread pitch, profile thread gauges.

UNIT VII

36.SURFACE ENGINEERING

Surface texture and properties, surface cleaning techniques,

surface integrity, wear and its measurements, lubricants and

its selection for reducing wear, principles of corrosion and05

remedial measures. Laser applications for surface

modifications.

UNIT VIII

37.SURFACE TREATMENTS

Mechanical surface treatment and coating, case hardening03

and surface coating, thermal spraying, vapor deposition, Ion

implementation, Diffusion coating, Electro plating, Electro03

less plating and Electro forming, Cermic, Organic and

Diamond coating.

TEXT BOOKS :

1.Manufacturing Engineering and Technology- Kalpakjian

2. Metrology and Measurement Ananad Bewoor, Vinay A. Kulakarni

3. Principles of Engineering Metrology, R.Rahendra

REFERENCES :

1. Fundamentals of Dimensional Metrology, 4e ,Connie Dotson.

2. Surface Engineering with Lasers/ Dehosson J.T

3. Surface Engineering for corrosion and wear resistance/ JR Davis

4. Precision Engineering and Manufacturing/ RL Murty


Name of the Staff: M. Venkata RamanaSubject: Machine Tools

Code: ME 55018Course: B.Tech (Mechanical Engineering)

Semester: III B. Tech. I - SemesterYear : 2011-2012

UNIT-I

Elementary treatment of metal cutting theory - Element of cutting process Geometry of single point tool and angles chip formation and types of chips, built up edge and its effects chip breakers. Mechanics of orthogonal cutting -Merchant's Force diagram, cutting forces - cutting speeds, feed, depth of cut, tool life, coolants, machinability -Tool materials. Kinematics schemes of machine tools - Constructional features of speed gear box and feed gear box.

Learning objectives: After successful competition of unit I the students must be able to

1. Define the term metal cutting 2. Describe the elements of cutting process 3. Define the various angles of single point cutting tool with neat sketch 4. List out the different types of chips and explain in detail 5. Compare and contrast the orthogonal and oblique cutting 6. State the importance of chip breakers. 7. Compare and contrast the orthogonal and oblique cutting 8. List out the assumptions of MERCHANTS circle diagram with neat sketch 9. Derive the relationship between the different forces developed in metal cutting 10. Define the term machinability and explain the effects of different factors on it 11. Define the term tool life and explain the effects of different cutting parameters on it 12. List out the different types of coolants and their applications 13. List out the different tool materials and select the tool material for different work piece material 14. Describe the procedure for constructional features of speed gear & feed gear box.

UNIT- I I :

Engine lathe - Principle of working, specification of lathe - types of lathe -work holders tool holders - Box tools, Taper turning, thread turning - for Lathes and attachments.Turret and capstan lathes collets, chucks - other work holders - tool holding devices - box and tool layout. Principal features of automatic lathes - classification - Single spindle and multi-spindle automatic lathes - tool layout and cam design. Kinematics scheme of the Lathes

Learning objectives: After successful competition of unit II the students must be able to1. Describe the working principle of lathe 2. Classify the types lathes 3. List out the specifications of lathe machine 4. List out the different types of work holder and tool holders for lathe machine and compare its advantages and disadvantages 5. Describe various types of box tools 6. Define taper and explain different methods of tapering 7. Describe the procedure for thread cutting 8. Explain the various types of attachments on lathe 9. Compare and contrast turret and capstan lathes 10. Explain the procedure for tool layout for turret and capstan lathes 11. Classify the different types of automatics lathes and explain 12. Describe the procedure for constructional features of speed gear & feed gear box for lathe.

UNIT-III :

Shaping, slotting and planning machines - Principles of working - Principal parts-specification classification, operations performed. Kinematics scheme of the shaping slotting and planning machines, machining time calculations.

Learning objectives: After successful competition of unit III the students must be able to

1. Explain with the help of a neat sketch, the working principle of shaper, planer and slotter 2. Classify various types of shaper, planer and slotter 3. List out various specifications of shaper, planer and slotter 4. List out and explain the operations performed on shaper, planer and slotter 5. Calculate the machining time for shaper, planer and slotter

UNIT - IV:

Drilling and Boring Machines - Principles of working, specifications, types, operations performed - tool holding devices - twist drill - Boring machinesFine boring machines - Jig Boring machine. Deep hole drilling machine. Kinematics scheme of the drilling and boring machines

Learning objectives: After successful competition of unit IV the students must be able to

1. Describe with the help of neat sketch, the working principle of drilling machine 2. Classify various types of drilling machines 3. List out and explain the different operations those are performed on drilling machine 4. Describe with the help of neat sketch, the working principle of boring machine 5. Classify various types of drilling machines 6. Describe the procedure for constructional features of speed gear & feed gear

box for drilling machine

7. Sketch the drill bit and label the various elements on it

UNIT V

Milling machine - Principles of working - specifications - classifications of milling machines - Principal features of horizontal, vertical and universal milling machines - machining operations Types geometry of milling cutters

Milling cutters - methods of indexing - Accessories to milling machines, kinematics scheme of milling cutters.Learning objectives: After successful competition of unit V the students must be able to

1. Describe the working principle of milling machine with neat sketch

2. Classify various types of milling machines 3. List out various specifications of milling machine 4. List out the different types of milling cutters & explain their functions. 5. Define the term indexing and explain the different methods of indexing 6. List out the various accessories and attachments used on milling machine to perform different operations 7. Describe the procedure for constructional features of speed gear box for milling 8. List out different operations performed on milling machine

UNIT-VI:

Grinding machine - Fundamentals -Theory of grinding - classification of grinding machine-cylindrical and surface grinding machine-Tool and cutter grinding machine - special types of grinding machines - Different types of abrasives - bonds specification of a grinding wheel and selection of a grinding wheel Kinematics scheme of grinding machines.

Learning objectives: After successful competition of unit VI the students must be able to

1. List out various types of abrasives and explain how a grinding wheel is selected for different operations. 2. Classify various types of grinding machines

UNIT-VII

Lapping, honing and broaching machines-comparison to grinding-lapping and honing. Kinematics scheme of Lapping, Honing and Broaching machines. Constructional features of speed and feed Units, machining time calculations.

Learning objectives: After successful competition of unit VII the students must be able to

1. Compare grinding with lapping, honing and broaching 2. Calculate the machining time for lapping, honing and broaching 3. Describe the different teeth in a broaching tool

UNIT - VIII

Principles of design of Jigs and fixtures and uses. Classification of Jigs & Fixtures Principles of location and clamping Types of clamping & work holding devices. Typical examples of jigs and fixtures.

Learning objectives: After successful competition of unit VIII the students must be able to

1. Compare jigs and fixtures.

2. List out principles design of jigs and fixtures.

Name of the Staff: M. Venkata RamanaSubject: Machine Tools

Code: ME 55018Course: B.Tech (Mechanical Engineering)

Semester: III B. Tech. I - SemesterYear : 2011-2012

List of Text Books:

Text Books:

1. Production Technology by R.K. Jain and S.C. Gupta. 2. Production Technology by H.M.T, (Hindustan Machine Tools)

List of Reference Books:

1. Elements of Workshop Technology Vol:II Machine Tools By Hajra Choudhury, Bose 2. A Course in Workshop Technology Vol:II Machine Tools By B. S Raghuwansi 3. Production Technology by P. C. Sharma 4. Metal Cutting & Machine Tools By G. Thirupathi Reddy 5. Fundamentals of Metal cutting & Machine tools By B.L. Juneja, G. S. Sekhom

Course Plan:

TopicTopic NameReferenceNumber of PCumulative

No.BooksPeriods

UNIT I

1IntroductionT1, T2,R1,R2,0101

R3, R4, R5

2Elementary treatment of metal cutting theT1, T2,R1,R2,0102

Element of cutting processR3, R4, R5

3Geometry of single point tool andT1, T2,R1,R2,0103

anglesR3, R4, R5

4Chip formation and types of chips, builtT1, T2,R1,R2,0104

up edge and its effectsR3

Documents

Dmm1 Lesson Plan