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P- 303 BASIC MACHINE TOOLS 

Teaching Scheme

Theory Hrs.             Practical Hrs.

 

Examination Scheme

 

Marks

Theory

Hrs.

Practical/Oral

Marks

Term workMarks

TotalMarks

04

04

100

03

25

25

150 

A.        THEORY

1.         BASIC MACHINE TOOLS

Machine tools classification, working and   auxiliary motions in machine tools , Primary cutting  motions in  machines tools.

 

2.         METAL CUTTING LATHES

Engine Lathes, construction  all arrangement and principal  units of engine  lathes, type and size range of engine  lathes, Operations carried on engine lathe ,  attachment  extending the processing capacities  of engine lathes,  description of other types of  lathes, Plain truing  lathes,  facing lathes, multiple tool  lathes, simple purpose lathes, turret  lathes, horizontal and vertical. Alignment tests of lathes.

 

3.         DRILLING MACHINES

Purpose and   field of application of drilling machines upright  drill processes, radial drills, Alignment tests of drilling  machine.

 

4.         BORING MACHINE

Purpose and filed of application. Horizontal boring machines, Precision boring machines.

 

5.         MILLING MACHINES

Purpose  and types of milling machines, general  purpose  milling machines, different types of milling operations , milling cutters, attachments extending  the processing  capabilities of general purpose milling machines. Alignment tests of  milling machine.

 

6.         PLANERS, SHAPERS AND SLOTTERS

            Classification : Attachments extending the processing capacities  of each.

Sawing and broaching, Machines: Metal sawing  classification : reciprocating sawing machines, circular sawing  machines, band sawing machines. Types of broaching machines, advantage and limitations of broaching.

 

7.         GRINDING MACHINES AND ABRASIVES:

Classification of grinding machines, cylindrical grinders, internal grinders, Surface grinders, tool and cutter grinders, grinding   wheel surface finishing.Abrasives, manufacture or grinding wheels.

B.  TERM WORK

            1. Plain, step and taper turning    - One job.

  1. 2. Thread cutting, right and left hand threads  - One job.
  2. 3. Thread cutting – multistory – One Job.
  3. 4.  Machining Plane surface on a shaper  and  milling  machine – One job.
  4. 5.  Simple gear cutting job on  milling machine-   One job.
C. PRACTICAL/ ORAL

PRACTICAL /ORAL WILL BE BASED ON THE ABOVE TOPICS.

D.  REFERENCE BOOKS:

  1. 1. Workshop Technology  Vol. II  by Haxra & Chodhri.
  2. 2. Manufacturing Processes by  O.P. Khanna.
  3. 3.  Workshop Technoglogy  Vol. I &II & III by Chapman.
  4. 4.  Production Technology  by R.K.Jain.

P- 304  THEORY OF MACHINE  

Teaching Scheme

Theory Hrs.             Practical Hrs.

 

Examination Scheme

 

Marks

Theory

Hrs.

Practical/Oral

Marks

Term work

Marks

Total

Marks

04

02

100

03

25

25

150

 

A. THEORY

 1. LINKS  & MECHANISM

Links :  Kinematics pairs, higher and  lower  pairs, constraints,  slider chains, double slider crank, Chains, inversions. Exact  straight line mechanism  of  peaucelliers, Heart and Scott. Roussell approximate straight line  mechanisms of grasshopper, watt  and Rogers. Pantograph, staring gear mechanisms condition for corrects tearing  Davis and Ackerman staring gears.

 

2. MOTION

Rectilinear and  rotational motion a plane, compound pendulum.

Velocity and acceleration  in machine parts, instaneous center, cent rode, its laws, velocity and acceleration acceleration  diagrams for simple kinematics mechanisms. ( Vector and  graphical approach)

 

3. FRICTION

Inclined plane, condition for  maximum efficiency, pivot &  collar friction, uniform pressure  & uniform wear,  friction  circle, friction axis.

Belt &  rope drive effect of  centrifugal stress on power  transmitted  slip & creep effect, use  off Jockey Pulleys.

 

4. BRAKES AND  DYNAMOMETERS

Simple block brakes, Internal  expanding shoe brake band , brake, braking of a vehicle transmission types of  dynamometer.

 

5. CAMS

Types of Cams  & follower displacement , Velocity and  acceleration of followers, Construction of cam  profiles with  Knife – edge with  roller and  with flat footed for  reciprocating  and oscillating followers.

 

6. GEAR TRAINS

Simple, compound and reverted  wheel train, epicyclical  gearing , analysis of sun and  planet  system,  examples of multi speed epicyclical gear boxes,  bevel gears epicyclical trains, differential box.

 

B. TERM WORK : Term work  will be based on above topic ( at least  10 Prcticals)

 

C. PRACTICAL/ORAL :   IT WILL BE BASED ON THE ABOVE TOPICS.

 

D. REFERENCE BOOKS :

  1. 1. Theory of Machines  by Ballany.
  2. 2. Theory of Machines   by J.M. Shah & Jadwani.
  3. 3. Theory of Machines  by Abdullah Sharif.
  4. 4. Theory of Machines by R.S. Khurmi.

 

MP- 305    FUNDAMENTALS OF MACHINE DESIGN &

 INDUSTRIAL DRAFTING

 

Teaching Scheme

Theory Hrs.             Practical Hrs.

 

Examination Scheme

 

Marks

Theory

Hrs.

Practical/Oral

Marks

Term work

Marks

Total

Marks

04

04

100

04

25

25

150

 

A.  THEORY

 

PART - I  MACHINE DESIGN

           

            1.  Design consideration of Machine Parts

Loads, different  types , factors of safety, selection of  materials, stresses,  factors affecting its selection,  determination of factor of safety, tensile, compressive  shear, bending bearing crushing  stresses, bending  and   tensional shear stress, transverse  shear, principle  stress determination. Eccentric  loading  bearing  pressure.

            2. Cotter and Knuckle Joints

 Designs of simple cotter joints, cotter joints with a sleeve, cotter foundation bolt, Gib and cotter joints design of knuckle joints, Applications.

            3. Design  of Riveted Joints

 Types of joints design of  double and triple riveted butt joints with equal and  unequal cover plates. Design of lap joints.

            4. Welded and Riveted Joints under eccentric loading

 Design of riveted connections subjected  to  eccentric  loading,  design of bolts under eccentric loading when (a) load is parallel to the  bolt axis (b) perpendicular to bolt axis.

            5. Keys and Coupling

Design of sunk keys, design of a muff, clamp flange (Protected type ) and bushed  pin type of flexible    flange couplings.

            6. Power Screw

Types of threads, design of screw  with  different  types of threads  used  in practices. Design of nuts,     Design of  C clamp, Screw jack, design of toggle  jack, design of coupler.

           7. Levers:

General Procedure of design of levers, design of a lever of a safety valve, design  of bell crank lever, design of rocker arm for exhaust valves.

           8. Limits , Fits and Tolerances :

Tolerances,  functional  and non-functional dimensions,  Unilateral &  bilateral tolerances, Dimensional tolerances, different types of  gauges, Interchangeability    &  selective assembly,  testing & calibration of gauges, Hole base & shaft  base  systems, different types of fit  as per  ISI. Application of types of fits in M/c tools, geometrical tolerances & gauge design  assembly.

PART B  & C ARE TO BE DEALT  IN LABORATORY

 

B.  INDUSTRIAL  DRAFTING :

  1. 1.   Assembly  drawing , standard drawing , machine shop drawing,  pattern shop, sheet metal  drawing.
  2. 2.   Production  drawing : Elements of production drawing, information on  drawing, tolerances, manufacturing methods.
  3. 3.   Surface roughness : Roughness  and  Machining  symbols, indication  on drawings.

 C. AUTOCAD.

  1. 1.  Introduction to  Computer  Aided Drawing : Objectives , Introduction  to drawing using  CAD  , Advantages of using  CAD, 2 & 3 dimensional modeling , application of CAD.
  2. 2. Auto cad an  overview  : Introduction, development  systems requirements, drawing  by AUTO CAD.
  3. 3.Auto Cad Basics : Introduction  of Main menu, starting  new drawing  drawing editor, entering  commands  using  mouse,  pull down  menus, screen menu getting help from AUTO CAD  data entry, error correcting.
  4. 4.Working with  Auto Cad : Setting limits , drawing lines, using  zoom , erasing  lines,  drawing  lines, saving  the work.
  5. 5. Editing  adding  dimensions and  test: Edit  commands,  trim, fillet, copy line  type , rotate, move commands , dimensioning the drawing , text commands.
  6. 6. Plotting the drawing using dot  matrix  printer and  plotter.

 

B.  TERM WORK

            MACHINE DESIGN

  1. 1. Design of Machine elements and  preparation of report.
    1. a.  Design  of screw, nut and  other  parts from topic no. 9 at least one  problem
    2. b.  Design  of levers  ( one problem)
    3. c.  Design  of Couplings ( One problem)
    4. d.  Design  of riveted joint ( One  problem)
    5. e.  Design  Consideration ( One  problem)

 

INDUSTRIAL DRAFTING
  1. 2.  Design  and Assembly  and detailed drawing  of :
    1. a. Cotter/ Knuckle  joints / Connection rod  (One Sheet )
    2. b. Coupling / Power  Screw ( One Sheet )

The  design calculations  be included in  part A above. At least  one drawing  be  production  drawing . Drawing be on A2 size (both details and  assembly )

             AUTO CAD

            Preparation of assembly and details drawings of machine components      assembly using AUTO CAD.

 

C.  PRACTICAL /ORAL

            IT WILL BE BASED ON THE ABOVE TOPICS.

 

D.  REFERENCE BOOKS

    1. Elements of Machine Design by  Pnadya and  Shah.
    1. Machine Design  Vol. I & II Patel & Pandya.
    1. Machine Design by R.B. Gupta.
    1. Machine Design by R.K. Jain.
    1. Machine Design by Sharma & Agrawal.
    1. Mechanical Engg. Design by Dr. Sadhusingh.
    1. Machine Design by A Sharif.
    1. A text  book on Production Drawing  by Narayana Kanniah &  Reddy.
    1. Computer aided  Drafting Auto Cad ISTE Nomogram.
    1. Instant reference  for  Auto cad by George Omura BPB Pub. Co.
    1. Inside  Auto cad by Racker  & Rice  BPB Pub. Co
  1.  
  2.  

LIST OF EXPERIMENT

 

 (A) Minor Design Problems:

1. Study of design consideration of machine parts.

2. Study of design of Riveted joints.

3. Study of design of Welded joints.

4. Study of design of Power screw.

5. Study of design of Levers.

6. Study of design of Couplings.

7. Study of Limits, Fits&Tolerance and Surface finish.  

(B) Major Design Problem:

              Design & draw assembly & detailed drawing of-

             (i) Cotter joint (B1-B2) /Knuckle joint (B3-B4)

             (ii) Coupling (B1-B2) / Power Screw (B3-B4)

 

(C) Preparation of assembly & detailed drawing of components using Auto Cad.

 
Production 3 Sem Syllabus - Shantilal Shah Engineering Collage, Bhavnagar

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