SYLLABUS FOR SHEET  METAL WORK

WEEK Number:37-52

Fitting : Sawing by hack-saw, chipping, cross filling and draw filing.

 

 

 

  1. ALLIED TRADE TESTING:

 

38. Practice on external threading using ‘Die and Die Holder’. Practice on internal threading using taps and wrench.

 

 

 

 

  1. ALLIED TRADE TRAINING
  2. Blacksmithy : Simple smithy operations, such as, drawing out, punching, drifting, and riveting (Making a ‘Tong’).

     

     

  3. Project Work : Blocking of urnlid and tumbler lid ( Alu. Sheet) by using wooden blocks. cleaning & Polishing.
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  5. Making a brass flower vase by brazing joint with inside tinning.

 

 

 

 

 

42. making a copper article by use of Power Press, Buffing & Polishing.

 

 

 

 

 

 

  1. Interpenitration to a cone : Cylinder fitted to a cone using G.I. sheet/ black sheet.

44. A dust cyclone with round inlet (model). Making gutters of different snapes.

 

 

 

 

 

 

  1. Making a twisted square tapered chute. Making a rectangular to round hood.
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  3. A rectangular bell-mouth with twin outlets (model).
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  5. Metal spinning : Making a cylindrical – medicine container of aluminum sheet.

 

 

 

 

 

  1. Typical folding, bending practice. Making steel racks, reinforcement with angle iron. Use of self threaded screw.
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  3. Making a steel trunk.
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  5. Any special exercises :
  1. Repairing blocked mudguard.
  2. Repairing blocked Radiators.
  3. Repairing blocked Silencer etc.
Description of files, types and their classifications. Chisels :

ISI types specification, cutting angles for different metals.

 

Use of Die and Die Holder. Description of taps and tap wrench. Reading of Micrometer. Brief description of reamers and their uses.

 

 

 

 

 

Brief description and use of blacksmiths hand tools and pneumatics hammer. Description of forging operations.

 

 

Description of Fly Press/ Ball Press. Brass, types of brass their proportions composition and uses

 

 

Definition of planishing and its application. Brief description of polishing machine. Various types of bobs and polishing compounds.

Process of Electroplating. Operating principles of power press. Method to calculate the pressure adjustment. Clearance between die and punch.

 

Laying out pattern of interpenitration to a cone. Properties of stainless steel and its uses.

The need for ducting. The places where ducting is employed and the working principle of a dust cyclone. Gutter and its use.

 

 

 

Development of triangulation method. Properties and uses of tin, lead, zinc, silver and gold.

 

 

 

Laying out of patterns for ‘S’ offsets. Explain terms – heel, check throat etc. description and physical properties of Muntz metal, gun metal, white metal etc.

 

Operating principles of spinning lathe. Description of spinning hand tools, coolant, dressing. Principles of reading of Vernier Caliper, height gauge and screw pitch gauge.

Process of painting. Spray painting and metal spraying.

 

 

 

 

 

 

 

 

 

 

Discussion on body stiffening process. Method to operate folding/ brake folder for typical folding. Description & use of jigs and fixtures.

Types of radiators and construction of radiators, silencer etc. Description on panel beating. Revision of trade theory.

 

Description panel beating. Revision of trade theory.

Factors & equation algebraic formulae.

 

 

 

 

Factor and equation algebraic formulae.

 

 

 

 

 

 

 

 

 

 

Factors and different types of factorisation. Equations- simple simultaneous- quadratic. Application, construction and solution of problems by Equations.

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Different forms of Energy- heat, mechanical & electrical- examples, conversions from one form to another.

 

 

 

 

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Geometry : Fundamental geometrical definition, angles and properties of angles, triangles and properties of triangles. Pythagoras theorem, properties of similar triangles rectangle and square.

Rhombus, parallelogram, etc. and their properties. Circle and properties of circles, regular polygons. Application of geometry to stop problems.

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Menstruation : Triangles, square, rectangle, parallelogram, trapezoid, regular polygons, circles, hollow circles etc.

 

 

 

Sector of circle, segment of circle, ellipse and fillet. Solid figure- prism, cylinder, pyramid, cone, frustum of a cone, sphere, spherical segment.

Material, weight and cost- shop problems. Practice on simple pocket calculators.

 

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Revision

 

 

 

 

 

 

Revision

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Importance of Blue Print Reading – Guide line to read – simple blue print exercises reading related to missing lines, missing views, missing dimensions, missing section, identification of surface symbols, etc.

 

 

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Solution of NCVT

(N.C.T.V.T.)

test papers.

 

 

 

 

 

 

 

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Revision

 

 

 

 

 

 

 

 

 

 

 

 

 

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Revision

 

 

 

 

 

 

Revision

 

 

 

 

 

 

 

 

 

52. ----------------------------------------- FINAL TEST ------------------------------------------