SYLLABUS FOR MACHINIST (GRINDER) TRADE 

(Week Number:27-39)

Weekwise Syllabus :27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39

WEEK NO.

PRACTICAL

THEORY

ENGG. DRAWING

W/S CAL. & SCI.

27.

Machine setting for automatic movements and parallel grinding on cylindrical grinder.

Common types of grinding machines, plain cylindrical external and internal cylindrical grinder and universal grinder.

Lettering nos. And alphabets.

Heat and temp. Thermometric scale. Fahrenheit and centigrade scales and their conversion. Name and use measuring instruments normally used in workshop

28.

Testing and mounting wheels sleeves truing and rebalancing and grinding parallel mandrel.

Test for alignment and checking balancing at wheel dressing different types of wheels dressers, their description & uses.

Free hand isometric sketching of simple objects with dimensions.

Shop problems on determination of volume and weight of simple solid bodies.

29.

Wheel balance and dressing grind no long bar, using steady rest.

Test for alignment and checking balancing of wheel dressing different types of wheel dressers their description and uses.

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Heat treatment hardening and analogue.

30.

Grinding different types of jobs using machine chuck face angle plate calculate.

Holding devices such as magnetic chuck chucks and face plates collects their description and uses ( * ).

Free hand isometric sketching of simple objects with dimension.

Geometry properties of lines, angles, troangles and circles.

31.

Table alignment with the help of test bar and dial test indicator parallel grinding and taper grinding ( by swiveling machine table).

External grinding operational steps in external grinding of a job and precautions to be taken.

Free hand sketching of plan and elevation of simple objects like hexagonal bar, square bar, circular bar, taper bar, and hollow bar etc.

Heat treatment tempering and normalizing.

32

Grinding of eccentric job and different types of jobs using jigs and fixtures angle plates

Holding devices such as jig and fixture angle plates ‘V’ blocks etc. Their description and uses. Method of holding jobs on magnetic chuck, face plate and chucks

 

 

 

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Simple problems on lines, angles triangles and circles.

33

Grinding of job by using face plate angle plate etc.

Interil grinding operational steps in internal grinding of a .=job precautions to be taken

Free hand sketching of plan and elevation of simple job like hexagon bar square bar, circular bar, taper bar and hallow bar etc.

Heat treatment tempering and normalizing

34

Grinding of plain/slots milling cutter

Milling cutter and its nomenclature

Views of simple solids and hollow bodies cut by section plane

Trigonometry – trigonometric functions of trigonometric tables-applied problems

35

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Grinding of loushes and cylinders steps and precautions to be taken

View of simple solid and hollow bodies cut by section plane

Case hardening and carburising

36

Grinding bushes and mandrel of it them within the close the close limit

Rough and finish grinding limit fit and tolerances as per ISI ; 919 –1963, Basic size and its deviation, position of tolerance zones with respect of zero line Fits different types of clearance, interference and transition, interchangeable system. Letter symbol for holes and shaft and fundamental deviation holes basis and shaft basis system

Reading of simple blue print

Calculation of area of triangle and polygon with the aid of trigonometry

37

Dry and wet grinding of different classes of metals such as cast iron, brass , bronze, aluminum, carbide and different classes of steel.

Heat generated in grinding dry and wet grinding use of coolant, their composition and selection. Characteristic of coolant

Exercises on reading of drawing.

Calculation of areas of angles and polygons with aid at trigonometry.

38

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Further use of trigonometric function and tables, applied problems.

39

Grinding square block angle plate and angular block.

Grinding a square job grinding angular surface taker grinding by Stan land taper and angle protector.

Free hand sketch of trade tools.

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