Miscellaneous tools – Rasp and file, scraper, glass paper, pincers, ratchet and cabinet type screwdrivers.Timber – Structure of wood, Classification of timber – soft wood and hard woodSeasoning of wood – air, water, electrical and kiln methodDefects in timber – natural, fungi insects, seasoning, manufacturingCarpentry Practice1. Marking, sawing, planning, chiseling, grooving, rebating exercises2. Preparation of carpentry joints3. Making utility models (group activity)4. Repair of furniturePattern MakingStudy of various pattern making tools such as contraction scale divides, Trammels, Callipers, Pinchdogs, Bradawl, Fillet, Iron, Gauge Practice work – Prepare Pattern from blue prints.UNIT – II: FITTINGSIntroduction, objectivesFamiliarization of toolsHard tools, Marking tools – scribes, compass, dividers, out side and inside caliper, jenny caliper,ordinary scribes block, universal scribing block, angle plate, V-block, center pinch, prick pinch, trysquare, bevel square, surface plate, straight edge.Cutting tools – chisels – flat, crosscut, half round, diamond point, side chisel.Files – single cut and double cut files rough, bustard, second cut, smoothDead smooth files – flat, square, pillar, round triangular, half round, knife and needle files.Scribers – Neck saw – solid and adjustable frames – blades – cutting with point rack sawDrill – flat, straight, fluted, twist dull, taper and straight drillsReamers – hovel, expansion and machine reamersTaps - rough, intermediate and finishing taps tap wrenches. Dies – solid split and adjustable dies,stocksStriking tools: ball peen, straight peen, cross peen and double-faced hammersHolding devices-vice-bench, leg, pipe, hand pin and tool makers viceMarking tools – scriber – ordinary and universal scribing block, center and prick pinch. Angle plate,v-block, Tri Square, surface plateMiscellaneous tools – screwdrivers, plane spanner, double adjustable and box spanners – ring spannerFitting Practice1. Cutting, Chipping, filling, scribing, drilling, reaming, tapping, and dieing exercises2. Making of utility models (group activity)3. Making, measuring and checking instruments are to be used during workingUNIT – III: SMITHYFamiliarization of Smithy toolsHand tools – anvil swage block, hammers such as ball pein, straight peen, cross peen and sledgehammers. Tongs such as flat, hallow, cold and hot chisels, swages, fullers, flatters, set hammers,pinch and drift.Equipment: Open and closed hearth, heating furnaces, hand and power driven blowers, open andstock fire fuels such as charcoal, coal, oil and gasWorkshop Practice1. Building fire in the furnace2. Upsetting, bending, drawing, setting down, pinching, cutting and welding exercises3. Preparation of utility article like bolts, tongs, spanners60
UNIT – IV: FOUNDRY AND CASTINGFamiliarization of toolsHand tools – shovel, riddle, hammers, trowels, relic, lifters, strike off bar spruce, balloons, swab, gatecutter, mallet, vent rod, draw spike, lifting plate, pouring weight, gaggers, clamps.Practice1. Preparation of moulding sand2. Prepare moulds of different types using different patterns3. Non-ferrous metal casting using simple patterns61