SYLLABUS FOR THE TRADE OF TURNER UNDER by nikeborome

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									SYLLABUS FOR THE TRADE OF TURNER UNDER

WEEK   PRACTICAL               THEORY                  ENGG.               WORKSHOP
NO.                                                    DRAWING             & CAL.

1      Introduction            Importance of
       Training:               safety and
                               precaution to be
       Familiarization with    observed in the
       the institute           section as well as
       Importance of the       in the institute,
       trade training.         causes of accident
       Machinery used in       and its remedies
       the trade. Types of
       the work done by        Importance of the
       trainees in the trade   trade in the
       . Introduction of       industrial
       safety rules in shop    development of
       floor and to the fire   the country,
       fighting equipment      Subjects to be
       etc.                    taught and
                               standard of
                               proficiency to be
                               attained .
                               Awareness of
                               recreational
                               medical , leave
                               and other facilities-
                               necessary
                               guidance to be
                               provided to
                               become familiar
                               with the working of
                               the institute
                               including stores
                               procedures

2      Practice on             Measurment , line       Engg. Drawings      Introduction
       hammering marking       standard and end        , types and their   properties
       out, chipping chisel    standard, steel         importance          and uses of
       grinding                rule- different                             C.I., and W.I
                               types , graduation
                            and limitation
                            Hammer and
                            chisel, materials
                            types and uses,
                            Prick, punch,
                            scriber

3   Filing practice on      Vice- types and       Types of lines ,    Arithmetic:
    plain surfaces, right   uses . Files-         their meaning       Fundamental
    angle by filing , Use   different types and   and application     operations,
    of calipers and         uses, cut grade ,     as per IS :696      additions
    scale measurement       shape material                            subtraction,
                            etc. Try square-                          Multiplication
                            different types,                          –division of
                            parts, material                           decimal
                            used etc. Calipers-                       number
                            types and uses
                            (Firm Joints)

4   Filing at right angle   VEE-block ,           Simple              Properties
    , marking &             scribing block        conventional        and uses of
    hacksawing              straight edge and     symbols for         plain carbon
                            its uses. Hacksaw     material and        steel and
                            –their types &        parts as per IS     alloy steel
                            uses                  ;696

5   Marking operation       Center punch-         Uses and            Fraction and
    on flat & round job ,   material              application of      decimals
    drilling operation      construction &        drawing             conversion
                            uses material         Instruments in      fraction to
                            uses. Drill           the geometrical     decimal and
                            machine –different    construction        vice-versa
                            parts, Hacksaw        angles and
                            blades –sizes ,       triangles.
                            different pitch for
                            different materials

6   Threading with the      Surface plat its      Geometrical         Properties
    help of taps and        necessity and use     construction,       and uses of
    dies                                          rectangles          copper, zinc
                            Tap-different types   Square, circles ,   , lead tin,
                            (taper 2nd and        triangles           aluminum
                            plug) care while
                            tapping , Dies
                            different types and
                            uses. Calculation
                             involved to find out
                             drill size (Metric
                             and inch)

7    Getting to know the     Definition of           Geo,
     lathe with its main     machine and             construction,
     components lever        machine tool –and       polygon ellipse   --------------
     position and various    its classification ,                      do--------
     lubrication points as   History and
     well                    gradual
                             development of
                             lathe`

8    Mounting of chuck       Classification of                         Composition
     on machine spindle      lathe in function                         , Properties
     and unloading in        and construction                          and uses of
     various system          of different parts of                     brass ,
                             lathe                                     bronze ,
                                                                       solder
                                                                       bearing
                                                                       metal ,
                                                                       timber,
                                                                       rubber etc.

9    Truing of round         Types of lathe                            System, of
     stock on 4 jaw          drives, merit &                           units, British
     independent chuck,      demerit ,                                 , metric and
     use of 3 Jaw self       description in                            SI units for
     centering chuck as      details-head stock-                       length , area
     well                    cone pulley type-                         volume,
                             all geared type –                         capacity,
                             construction and                          weight , time
                             function, timbler                         angle , their
                             gear set                                  conversions

10   Progress test           Reducing speed-                           Effect of
                             necessary & uses                          alloying
                             Back gear unit –                          elements on
                             its construction                          the property
                             and speed                                 of C.I &
                             calculation                               STEEL

11   Grinding of R.H.        Orthogonal &            Free hand         Units of
     and L.H. side           oblique cutting ,       sketching of      temperature,
     cutting tools           lathe , cutting tool    simple            force, &
     checking of angles      –different types        geometrical       related
          with tool angles       shapes and            solids- cube,        problems
          gauge.                 different angles      cone , prism,
                                 (clearances &         cylinder ,
                                 rakes)                sphere,
                                 specification of      pyramids
                                 lathe tools

12        Setting of lathe       Different types of    Standard             Mass,
          tools in different     lathe tool posts ,    printing style for   volume,
          types of tool post     Function of quick     letters &            density, sp.
          following correct      change gear box       numbers as per       Gravity &
          procedure              feed shaft, lead      IS : 696             specific
                                 screw etc.                                 weight S.I.
                                                                            M.K.S. and
                                                                            F.P.S. units
                                                                            of force
                                                                            weight etc.
                                                                            Their
                                                                            conversion
                                                                            to related
                                                                            problems

13        Facing operation to    Combination drill –   Free hand            Mass ,
          correct length         appropriate           practice of          volume,
          centre drilling        selection of size     printing style for   density ,
          operation Grinding     from chart of         standard letters     weight, S.I. ,
          of "V" tools           combination drill ,   and numbers          M.K.S. and
                                 drill chuck – its                          F.P.S. units
                                 uses                                       of force
                                                                            weight etc.
                                                                            Their
                                                                            conversion
                                                                            to related
                                                                            problems

14        Parallel turning       Cutting speed feed    Scales               Inertia, rest
          practice-              depth of cut          construction of      and motion
          measurement with       calculation           plain scale R.F.     velocity and
          scale and caliper      involved –speed       (representative      acceleration
                                 feed, R.P.M. etc.     fraction)
                                 Recommended for
                                 different materials

ACHIEVEMENT; checking by test:

     1. Tool grinding –different shapes , different angles
     2. Parallel turning –measurement with scale & caliper
     3. Theory question on tool angles cutting speed , feed depth of cut etc.


15        Step turning within      Vernier caliper –its   Construction of     Concept of
          q 0.08 mm                construction,          diagonal scale      scalar &
          measurement with         principle                                  vector
          vernier caliper          graduation and                             quantity with
                                   reading, least                             example ,
                                   count etc.                                 Newton’s law
                                                                              of motion

16        Parallel turning         Outside                Simple              Power and
          pratice-                 micrometer-            dimensioning        roots , Factor
          measurement with         different parts        technique size      , power,
          micrometer within q      principle,             and location        base,
          0.08mm accuracy          graduation,            dimension for       exponents.
                                   reading                parts, holes ,
                                   construction           angles , taper,
                                                          screws etc. As
                                                          per IS ; 696

17        Step turning             Different types of     Transferring        Multiplication
          practice with in a       micrometer             measurement         and division
          0.08 with sq.            Outside                for linear ,        of power and
          Shoulder , U/cut         micrometer,            angular, circular   root of a
          feel of micrometer       vernier scale          dimensions from     number
          sources of error         graduation and         the given
          with micrometer          reading sources of     objects to the
                                   error with             related free
                                   micrometer & how       hand sketches
                                   to avoid them, Use     using different
                                   of digital             measuring
                                   measuring              instrument
                                   instruments

18        Drilling of lathe-step   Lathe accessories-     Pictorial drawing   Square root
          drilling – drill         chuck                  of geometric        by arithmetic
          grinding practice        =independent, self     drawing of          and
                                   centering, collet ,    simple              problems
                                   magnetic etc, its      geometrical
                                   function ,             solids
                                   construction and
                                   uses

19        Boring Practice-         Drills- different      Pictorial drawing   Work,
     plain & step , use of   parts, types sizes      of isometric            energy, and
     inside micrometer-      etc. Different          drawing of              power, their
     with 0.08 mm            cutting angles,         simple                  units- related
     accuracy                cutting speed for       geometrical             problems
                             different material .    solids
                             Boring tool ,
                             counter sinking
                             and counter boring

20   Boring (plain)          Letter & number         Oblique                 ------------do--
     measurement with        drill core drill etc.   projection of           ---------
     I/S micrometer 0.08                             simple
     mm                                              geometrical             And H.P.,
                                                     solids                  I.H.P , AND
                                                                             B.H.P.

21   Boring & internal       Driving plate, face                             Percentage,
     recessing               plate , fixed and                               changing
                             travelling steadies     -----------do--------   percentage
                             construction and        -----                   to decimal
                             use . Transfer                                  and fraction
                             caliper- its                                    and vice-
                             construction and                                versa
                             uses

22   Checking alignment      Lathe centres-          Isometric               Problems on
     of lathe centres,       different types and     drawing of              percentage
     Mounting job in         their uses, Lathe       simple                  related to
     between centre          carrier- its function   machined &              trade
                             , types and uses        casting block

23   Reaming in lathe        Reamers- types                                  Meaning of
     using solid and         and uses,                                       stress.,
     adjustable reamer       lubricants and                                  Strain ,
                             coolant –types                                  modulus of
                             necessity system                                elasticity
                             of distribution .
                             Selection of
                             coolant for
                             different material,     ---------do----------
                             Handling & care         ---------

24   Knurling practice in    Knurling meaning,                               Ultimate
     lathe (diamond ,        necessity , types ,                             strength ,
     straight helical &      grade, cutting          -------------do----     different
     square)                 speed for knurling                              types of
                                                                               stress,
                                                                               factors of
                                                                               safety
                                                                               examples

ACHIEVEMENT;- checking by test:

        1. Drilling
        2. Boring (a) Plain & (b) stepped 0.05 mm accuracy
        3. Knurling operation – theory –question on micrometer, vernier caliper,
           countersinking, counterboring, reaming etc


25     Turning practice –       LATHE mandrel-         Free hand               -------------do-
       between centres on       different types and    sketches of             ---------
       mandrel (gear            their uses             trade related
       blanks)                                         hand tools ,
                                                       cutting tools ,
                                                       measuring

26     Fitting of dis-similar   Concept on                                     Ratio &
       materials-, M.S. in      interchangarity                                proportion :
       brass Al, in cast        limit , fit and                                Ratio, finding
       iron etc.                tolerance as per IS                            forms and
                                :919 – unilateral                              ratio
                                and bilateral                                  proportions,
                                system of limit .      ------------do-------   direct
                                Fits different types   -------                 proportion
                                , symbols for holes                            and indirect
                                and shafts , Hole                              proportion.
                                basis & shaft basis
                                etc.
                                Representation of
                                Tolerance in
                                drawing


WEEK   PRACTICAL                 THEORY                 ENGG.                  WORKSHOP
NO.                                                     DRAWING                & CAL.

27     ------do----              --------do-------                             Application
                                                                               of ratio and
                                                                               proportion to
                                                                               related
                                                                               problems
------------------------------INDUSTRIAL VISITS TO DIFFERENT INDUSTRIES--------------
-----------------------

28      Taper turning by          Taper- necessity,                            Simple
        offsetting tailstock      different method of                          machine –
        method                    expressing tapers.                           principle ,
                                  Different standard                           velocity ratio,
                                  tapers. Method of                            - mechanical
                                  taper turning,.                              advantage,
                                  Important                                    efficiency,
                                  dimensions of                                simple
                                  taper, Principles of   -----------do------   problems
                                  setting the work       -----------
                                  and the tailstock.
                                  Calculation
                                  involving the
                                  tailstock offset
                                  method

                                  Advantages and
                                  disadvantages

29      Taper turning by          -------d0----------    -                     Simple
        offsetting tailstock                                                   machine
        method                                           ------do------        principle
                                                                               velocity ratio-
                                                                               mechanical
                                                                               advantages,
                                                                               efficiency ,
                                                                               Simple
                                                                               problems

30      Taper tuning by           Taper turning by       Orthographic
        compound slide            swivelling             drawing
        swiveling (Ext. E’Int.)   compound slide its     application of        Fundamental
                                  calculation            both the first        Algebraic
                                  advantages &           angle and third       Operations
                                  disadvantages          angle methods
                                                         in representing       Sign and
                                                         the drawing for       symbol used
                                                         simple and            in algebra.
                                                         complex
                                                         machine
                                                         blocks given
                                                         for exercises
                                                         with
                                                                  dimensions

31        -------------do-----------                                                    Algebraic
          ----                                                                          addition ,
                                       -------------d0---------   ---------------do--   subtraction,
          (Bevel gear blanks)          --                         ----------            multiplication
                                                                                        and division.
                                       Vernier bevel
                                       protractor- its
                                       function ,
                                       construction &
                                       reading

32        Taper turning by             Taper turning by                                 Power &
          taper turning                taper turning                                    laws of
          attachment (Male &           /attachment –              -----------do------   exponent
          female practice)             principle setting ,        -----
                                       advantages &
                                       disadvantage,
                                       calculation
                                       involved

33        -----do-------               ---------do-------------   -----do---------      Algebraic-
                                       -                                                simplification
                                                                                        problems

34        Taper turning by             Different types of         Standard              Simple
          form tool (Int. & Ext.)      form tool & their          method as per         machine like
          (taper matching).            uses.                      IS :696.              winch, pulley
                                                                  Exercises for         and
                                                                  different             compound
                                                                  sectional views       axle etc.
                                                                  on the given
                                                                  orthographic
                                                                  drawing of
                                                                  machine parts,
                                                                  casting etc.

ACHIEVEMENT: Checking by Test:

     1. Fitting of dissimilar materials within specified tools.
     2. Taper turning-gauge to suit+05 deg. Accuracy.
     3. Theory- question on different methods of taper, turning.


35        Eccentric marking            Combination set                                  Factor and
     Practice - Eccentric    square head,                                 equation ,
     turning – external      centre head,           ---------------do--   algebraic
     use of Vernier height   protractor head –      ---------             formula
     gauge                   its function,
                             construction and
                             uses

36   Ecentric turning        Gauge- definition –                          Factor and
     practice (external      different types of                           different
     and internal)           plug and ring          -----do--             types of
                             gauge, filler gauge,                         factorisation
                             enso gauge ,
                             radius gauge


37   Eccentric boring,       Vernier height                               Equation,
     position boring         gauge, fuction ,                             simple
                             description and        -----------do-----    simultaneous
                             uses , tamplate –
                             its function &
                             construction

38   ----do-                                        -                     Equations
                                                                          simple,
     Grinding of threading   ----------do------     --------d0-           simultaneous
     external tool                                                        , quadratic

39   Screw- thread           Screw thread-          Interconversion       Application ,
     cutting whitworth       definition , purpose   of isometric          construction ,
     thread (external)       and its different      colique               and solution
                             elements               drawing of            of problems
                             Fundamentals of        orthographic          by equation
                             thread cutting on      drawing and
                             lathe                  vice-versa –
                                                    related
                                                    problems such
                                                    as Vee blocks,
                                                    simple stepped
                                                    blocks, blocks
                                                    oriented by
                                                    various
                                                    machining
                                                    operation etc.

40   Screw cutting contd.    Different types of     Inter –               Atmospheric
     – threading practice    screw thread –         conversion of         pressure .
                                their forms and       isometric             Pressure
                                elements              colique               gauge,
                                                      drawing of            gauge
                                                      orthographic          pressure and
                                                      drawing and           absolute
                                                      vice-versa-           pressure and
                                                      related               their units
                                                      problems such
                                                      as Vee blocks,
                                                      simple stepped
                                                      blocks, blocks
                                                      oriented by
                                                      various
                                                      machining
                                                      operation etc.

41   Screw thread cutting       Different methods     ---------do--------   Logarithms
     whitworth (Internal)       of forming threads,   -----                 and use of
                                calculation                                 logarithms
                                involved in finding                         tables:
                                out core dia.                               Logarithms,.
                                                                            Logarithms
                                                                            and
                                                                            exponents

42   ----contd.-                Difference                                  Use of
                                between lead and                            logarithms
     L/H threading              pitch , gear train    ------do-----------   and
     practice                   (simple gearing )     ---                   antilogarithm
                                calculation                                 tables


43   ----------------do------   Calculation                                 Arithmetical
                                involving driver,                           operation
     Fitting of male &          driven, lead screw                          involving
     female threaded            pitch & thread to                           logarithms
     components                 be cut , thread       --------------do---   and the
                                cheeing dial          -----                 computations
                                function ,
                                construction and
                                use

44   Screw thread cutting       Calculation           ----------d0-------   Problem
     (external) thread-         involving pitch       --------              related to
     tool grinding              related to ISO                              trade using
                                profile                                     logarithm
                                                                        tables

ACHIEVEMENT: CHECKING BY TEST

       1. Eccentric turning and boring
       2. Thread fitting withworth
       3. Theory – Question on screw thread profile B.S.W. , METRIC Etc. Gear
          train calculation for screw cutting


45    Use of hard chaser      Hand chaser-             Surface
      practice on threads     types , uses etc,        development
      (ext. & Int.) Non-      Dies – different –       of solids of
      ferrous materials.      Die stock                simple
                                                       geometrical
                                                       solids like
                                                       cube,
                                                       rectangular
                                                       block, cone
                                                       pyramid,
                                                       cylinder prism
                                                       etc.

46    Screw thread            Conventional chart                        Specific
      (Internal ) metric &    for different, profile                    gravity-
      tool (Internal          – metric BA ,            ---------do---   principle of
      threading ) grinding    Whitworth, pipe                           Archemedis.
                              etc.

47    Fitting of male and     Calculation              ------do----     Relation
      female thread           involving gear                            between
      components (Metric)     ratios and gearing                        specific
                              (compound                                 gravity and
                              gearing)                                  specific
                                                                        weight.

48    Tool grinding for sp.   Calculation              Interpretation   Geometry:
      Thread (external )      involving tool size ,    of solids and    Fundamental
      Sq. (external) thread   core dia. Pitch          conventional     geometrical
      practice`               proportion, depth        curves on        definition of
                              of cut etc. Of sq.       drawings-        angle and
                              Thread etc.                               properties of
                                                                        triangle .
                                                                        Triangles
                                                                        and
                                                                        properties of
                                                                                        triangles

49        Tool grinding for sp.        -----------do----         ------------do-----    Pythagorous
          Thread (Internal ) sq.                                                        theorem:
          (Internal) thread                                                             properties of
          cutting practice                                                              similar
                                                                                        triangles

50        Fitting of male and          Basic processes of        Solution of
          female square                soldering brazing,        NCVT test
          threaded                     butt welding of tool      paper
          components                   etc..                     (preliminary)



51        ---------------do---------   -                         Revision               Revision
          ---

ACHIEVEMENT : CHECKING BY TEST

     1. Use of hand ( Ext. & Int. ) chaser on non-ferrous material
     2. Fitting of Vee threaded components, Revision and test
     3. Theory – Question on different types of threads, lathe set –up for thread
        cutting etc.


52. TEST

FINAL ACHIEVEMENT: after one year : will be able to perform the following
operation , lathe tool grinding , parallel turning preliminary. Stepped turning and
boring , vee threads cutting , gear calculation , vee thread fitting etc. Accuracy within
q 0.05 mm



WEEK      PRACTICAL                THEORY                  ENGG. DRAWING               WORKSHOP
NO.                                                                                    & CAL.

53        Introduction to          Introduction to         Revision of I st            Revision of Ist
          various                  the trade- its          year’s topics               year’s course
          components               importance and
          produced on              role in the
          lathesplace              industry review
                                   of lathe
                                   machine its
                                   classification for
                          productivity

54   Forging l(lathe      Cutting tool
     tools) practice      material .H.C.
     different shapes,    steel , H.S.
     heat treatment of    Steel , stellite
     tools                tungsten,            --------DO----------   ---------------DO
                          carbide ceramic
                          etc.
                          Constituents
                          and their
                          percentage,
                          tool-life required
                          quality of cutting
                          material

55   Form turning         Form tools –         Screw threads their    Rectangular ,
     practice (off        function types       standard forms as      square ,
     hand)                and uses,            per ISI external and   rhombus,
                          template-            internal thread        parallelogram
                          purpose and          convention on the      etc. And their
                          use, Dial test       features for           properties
                          indicator-           drawing as per ISI
                          construction ,
                          use etc.

56   -----------do-----   Calculation                                 Circle and
                          involving                                   properties of
     Grinding and         modified rake                               circle, regular
     setting of parting   and clearance                               polygon
     off tool on tool     angles of lathe
     post                 tool at above
                          and below the
                          centre height,
                          Subsequent           ------------do-
                          effect of tool
                          setting

57   Grinding up of       Jig & fixture-       Sketches for bolts     Application of
     various shape of     definition type      nuts, screws and       geometry to
     chip breaker on      and use, Chip        other screwed          related
     tool –face           breaker on tool      members                problems
     breaker, of chip     –purpose and
     breakup on tool      type
     face
58    Taper turning by     Sinebar –                                    Heat and
      taper turning        construction ,                               temperature,
      attachment-          types and use,      -------do-------------   thermometric
      Morse taper-         Slip gauges                                  scales their
      different number(    type uses and                                conversion
      lathe centre_)       selection

59    Internal taper       Checking of         Standard rivet           Temperature
      turning by taper     taper with sine     forms as per ISI         measuring
      turning              bar and roller-                              instruments
      attachment .         calculation
      Taper matching       involved
      exercise
      (application of
      precision_blue)
      (Plug and Ring
      Gauge)

60    Turning and          Method of           Rivet joints lap         Specific heats
      boring practice on   brazing solder,                              of solids &
      C.I. block & tip     flux used for tip                            liquids quantity
      brazing on shank     tools                                        of heat

ACHIEVEMENT :CHECKING BY TEST

       1. Form turning , taper turning and matching
       2. Proper grinding and setting of parting –off tool
       3. Theory – Question on heat treatment , chip breaker, Sine device, slip
          gauges , brazing of tips


61    Turning at high      Cutting speed ,     Riveted joints butt      Heat loss and
      speed using          feed Turing time                             heat gain with
      Tungsten carbide     calculation ,                                simple
      tools including      cutting , speed                              problems
      throw-away           chart (Tungsten
                           carbide tool
                           )etc.

62    Practice of          Tool life,          Sketching of keys        Mensuration:
      negative rake tool   negative top        cotter and pin joints
      on non-ferrous       rake-its                                     Plain figures-
      metal                application and                              triangles,
                           performance                                  square,
                           with respect to                              rectangle,
                           positive top                                 parallelogram
                           rake

63   Balancing ,           Lubricant-                                      Plain figures –
     mounting &            function types                                  trapezium,
     dressing of           source of                                       regular
     grinding wheel        lubricant etc.                                  polygons,
     (Pedestal)            Method of                                       circles
     Adjustment of tool    lubrication. Dial
     rest                  test indicator,
                           use for
                           parallelism &        ------------do----------
                           concentricity        ---
                           etc. In respect
                           of lathe work
                           Grinding wheel;
                           abrasive, grit,
                           grade bond etc.

64   Periodical            Preventive           Sketches for simple        Plain figures-
     lubrication           maintenance,         pipe unions with a         segment and
     procedure on          its necessity,       simple pipe line           sector of circle,
     lathe, testing of     frequency of         drawings                   ellipse, fillers
     accuracy of           lubrication,
     alignment             preventive
                           maintenance
     Procedure of          schedule`
     checking
     accuracy of lathe.
     Preventive
     maintenance of
     lathe

65   Industrial Visit to   Different                                       Solid figures –
                           industries (to                                  prism ,
                           gather                                          cylinder,
                           knowledge                                       pyramid , cone
                           about the
                           machinery ,
                           operation etc.       --------------do--------
                           Which are not        ----
                           available
                           /performed in
                           the Institute i.e.
                           Special purpose
                           lathe
                           programme
                               control m/c etc

66    Acme thread              Calculation            Concept of             Solid figures:
      cutting (male &          involved –             preparation of         Frustum of
      female ) & tool          depth core dia.        assembly drawing       cone sphere
      grinding                 Pitch proportion       and detailing.         spherical
                               etc. Of Acme           Simple assemblies      segment
                               thread                 & their details of
                                                      trade related
                                                      tools/jobs/exercises
                                                      from the given
                                                      samples

                                                      Or models , tool
                                                      post for the lathe
                                                      with washer and
                                                      screw

67                             ----------do--------   -----------do-         Material weight
                               ----                                          and problems
      -----------do---------                                                 related to trade
      -------

      Fitting of male
      and female
      threaded
      component

68    Pipe thread              Depth                  Detail and             Trigonometry:
      cutting (male &          micrometer             assembly up Vee        Trignometrical
      female)                  (Metric- Inch)         blocks with clamps     ratio use of
                               purpose                                       trigonometric
                               construction,                                 tables.
                               uses etc, limit
                               gauges their
                               uses

69    Crank shaft-             Marking table                                 Area of triangle
      single throw             construction                                  by
      (Desirable)              and function .         -----do--              trigonometry
                               Angle plate-
                               construction
                               eccentricity
                               checking

ACHIEVEMENT :CHECKING BY TEST
      1. PREVENTIVE MAINTENANCE OF LATHE
      2. ACME THREAD CUTTING
      3. THEORY –QUESTIONS ON PREVENTIVE MAINTENANCE OF
         LATHE , CUTTING OF ACME THREADS, PIPE THREAD


70   Turning of long       Roller and         Details and               Finding height
     shaft (using          revolving          assembly of shaft         and distance
     steadies) (with in    steadies           and pulley                by
     q 0.03 mm)            Necessity                                    trigonometry
                           construction ,
                           uses etc

71   Cutting metric        Calculation                                  Application of
     threads on inch,      involving gear                               trigonometry to
     lead screw and        ratios metric      -----------do--           related
     inch threads on       threads cutting                              problems
     metric lead screw     on inch L/S
                           lathe and vice-
                           versa

72   Use of                Different types    Details and
     attachments on        of attachments     assembly of Bush
     lathe for different   used on lathe      bearing                   --------do--------
     operations

73   Thread cutting on     Various                                      Triangle of
     non-ferrous           procedures of                                forces
     metals-copper ,       thread                                       parallelogram
     aluminum , brass      measurement                                  of force
     etc.                  thread screw
                           pitch gauge

                           Screw thread
                           micrometer, tool   ------------do---------
                           maker’s
                           microscope etc.

74   Advanced              Tool maker’s       Details and               Composition
     eccentric boring      button and its     assembly of simple        and resolution
     (position boring      parts,             coupling                  of forces
     using tool            construction
     maker’s button)       and uses.
                           Telescopic
                           gauge its
                                construction
                                and uses

75       Boring and             Inside             ---do----                 Representation
         stepped boring         micrometer                                   of forces by
         (within q 0.05mm)      principles,                                  vectors –
                                construction                                 simple
                                graduation                                   problems on
                                reading use etc.                             lifting tackles
                                (metric &                                    like jib cranes.
                                inches)
                                                                             -----do-----

76       Continuation of        Calculation        Details and               ----do-----
         thread cutting         involving          assembly of simple
         fractional odd &       fractional         hand vice.
         even threads.          threads, odd &
                                even threads




ACHIEVEMENT :



Checking by test :

1. turning within close limits q 0.05 mm micrometer.

2. Using tool maker’s button – using I/S micrometer.

3. Theory – questions on cutting BSW threads on metric lead screw and vice
versa tool maker’s button, thread gauges etc.

77.   Multiple thread cutting      Multiple thread             Details and    Moment of a
      – 2 starts (external)        function,                   assembly of    force couples.
      BSW                          use,,difference             a simple
                                   between pitch & lead        hand vice.
                                   formula to find out
                                   start pitch lead gear
                                   ratio etc.

78    Multiple thread cutting      Indexing of start           ---do---       Simple
      BSW (internal) fitting of    different methods tool                     problems on
     male & female threads.      shape for multistart                   straight and
                                 thread.                                bell crankled
                                                                        lever.

79   Multiple thread cutting     Setting of a lathe       ---do---      Centre of
     60 deg. ( external &        calculation for                        gravity simple
     internal)                   required change                        experimental
                                 wheels.                                determination.
                                                                        Equilibrium
                                                                        stable,
                                                                        unstable and
                                                                        neutral
                                                                        equilibrium
                                                                        simple
                                                                        explanation.



WEEK   PRACTICAL                  THEORY                  ENGG.         WORKSHOP
NO.                                                       DRAWING       & CAL.

79     Multiple thread cutting    Setting of a lathe      ---do---      Centre of
       60 deg. ( external &       calculation for                       gravity simple
       internal)                  required change                       experimental
                                  wheels.                               determination.
                                                                        Equilibrium
                                                                        stable,
                                                                        unstable and
                                                                        neutral
                                                                        equilibrium
                                                                        simple
                                                                        explanation.

80     Multiple thread cutting    Calculation involving   ---do---      ---do---
       acme form ( male &         shape of tool change
       female)                    wheel core dia etc.

81     Multiple thread cutting    Calculation involving   Blue print    Friction co
       square form (male &        shape, size, pitch,     reading       efficient of
       female)                    core dia etc.           simple        friction.
                                                          exercises
                                                          related to
                                                          missing
                                                          lines.

82     Multiple htread cutting    ---do---                ----do-----   Simple
         square form (male &                                             problems
         female)                   Helix angle leading                   related to
                                   & following angles.                   friction.

83       Multiple thread cutting   Thread dimensions-       Blue print   Magnetic
         work ( external)          tool shape, gear         reading      substances
                                   calculation pitch        simple       natural and
                                   depth lead etc.          exercises    artificial
                                                            related to   magnets.
                                                            missing
                                                            views.

84       Cutting of helical        Heat treatment -         ---do---     Method of
         grooves in bearing        meaning &                             magnetisation
         and bushes ( oil          procedure                             – uses of
         groove)                   hardening,                            magnets.
                                   tempering
                                   carburising etc.




ACHIEVEMENT :

Checking by test :

1. Turning with in close limits q 0.05 mm accuracy.

2. Single throws crank shaft turning (desirable)

          1. Multiple thread fitting.
          2. Theory : questions on cutting multi- start threads, indexing of start
             pitch lead etc.




85    Setting & operation      Accessories used        Simple             Electricity &
      involving face and       on face plate their     exercises          its uses
      angle plate.             uses. Angle plate its   related to         electric
                               construction & use.     missing            current
                               Balancing its           symbols.           positive &
                                 necessity.                                      negative
                                                                                 terminals.

86   Turning & boring of         Care for holding        Simple                  Use of fuses
     split bearing (using        split bearing fixture   exercises               and switches
     boring bar and              and its use in          related to              conductors &
     fixture.)                   turning.                missing                 insulators.
                                                         symbols.

87   Thread on taper             Setting of tool for     Simple                  Simple
     surface (Vee form)          taper threads -=        exercises               electric circuit
                                 calculation of taper    related to              Simple
                                 setting & thread        missing section         calculation
                                 depth

88   Practice on turret          Production type                                 Ohm’s law –
     lathe                       lathe capsten, turret                           simple
                                 , automatic, multi-     -----------do--------   calculation,
                                 spindle etc.            --                      electrical
                                                                                 insulating
                                                                                 materials

89   ------------do-----------   Capsten lathe—its       Simple                  Graphs-
                                 main parts –            exercises               Abscissa and
                                 function ,              related to              ordinates
                                 preference over         missing                 graphs of
                                 centre lathe.           dimensions              straight line
                                                                                 related two
                                                                                 sets of
                                                                                 varying
                                                                                 quantities

90   ---------do-----------      Different types of
                                 tools used on
                                 capsten lathe and       -----------do--------   --------------do-
                                 their advantages,       -----------             --------
                                 Using of floating
                                 cutter

91   Practice in turret          Turret lathe- its       Simple                  Practice on
     lathe                       main part types,        exercises               simple pocket
                                 difference between      related to              calculator
                                 capstan and turret      identification of
                                 laths                   faces

92   Practice in turret          Different types of      ------------do-------
       lathe                        tools used on turret      ------
                                    lathe and their                                   ------------do---
                                    advantages                                        ---------

93     -------------do-----------   ----------do-----         Solution of             Mechanical
                                                              NCVT ,test              properties of
       Threading with self-         Coventry die head         papers                  metals
       opening die head             & its closer –
                                    function

94     -------do---------                                                             Heat
                                                                                      treatment of
       Internal threading           -----------do----------                           steel –
       with collapsible tap                                                           hardening, ,
                                    Collapsible tap –its      ------------do-------   annealing,
                                    uses                      -----                   tempering,
                                                                                      normalizing ,
                                                                                      case
                                                                                      hardening,
                                                                                      standard and
                                                                                      measurement

ACHIEVEMENT: CHECKING BY TEST

     1. Face plate work on lathe
     2. Taper thread cutting - capstan operation
     3. theory – question on face plate work , difference between capstan & turret
        lathes, threading on tapered surface


95     Project work                 Special lathe –           Solution of             Heat
                                    copying relieving         NCVT. Test              treatment of
to                                  wheel turning axle        papers                  steel
                                    turning etc.                                      harpening
99                                                                                    annealing
                                    Relieving lathe – its                             tempering,
                                    type operational ,                                normalizing
                                    features –                                        case
                                    calculation of                                    Harding,
                                    gearing etc                                       standard and
                                                              -----------do--------   measurement
                                    Detailed description      -                       Transmission
                                    about the typical                                 of power by
                                    work and cam                                      belt pulley &
                                    arrangement etc.                                  gear drive
                                Surface finish
                                symbols used on                               Solution. Of
                                working blueprints –                          NCVT
                                I.S. system lapping ,                         question
                                boring etc.                                   papers

                                Automatic lathe- its
                                main parts types
                                diff. Tools used –      Revision
                                circular tool etc.
                                                                              Solution of
                                                                              NCVT
                                                                              question
                                                                              papers


                                                        Revision




100   Project work- useful      Interchangeability
      articles different type   meaning, procedure
      fittings                  for adoption, quality   ---------do--------   Revision
                                control procedure
                                for quantity
                                production

101   Project work- useful      Interchangeability
      articles different type   meaning control
      fittings                  procedure for           Revision              Revision
                                quantity

ACHIEVEMENT ; CHECKING BY TEST

  1. EXTERNAL AND INTERNAL OPETATIONAL ON CAPSTAN AND TURRET
     LATHE, SETTING OF STEPS – USE OF BOX TOOL HOLDER q . 0.04 mm
     ACCURACY
  2. CUTTING THREADS ( EXTERNAL & INTERNAL) WITH DIE HEAD &
     COLLAPSIBLE TAP. INSTITUTE TEST
  3. THEORY- QUESTION OF RELIEVING, COPYING AUTOMATIC LATHES,
      SURFACE ROUGHNESS, SURFACE ROUGHNESS SYMBOLS


102   Work order from     Revision and test   --do-         -do-----
      local industries
      (production type)

103   ----do----------    --------do------    ---do------   ---do------

								
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