23 - Curriculum Development Centre, Kalamassery

CONTENT DETAILSUNIT – I: Carpentry and Pattern MakingWork Practice Introduction – Objectives – Safety.Familiarization of tools and holding devices.Timber – Structure of wood. Classification.Seasoning and defects.1. Marking, Sawing, Planing, Chiselling, Grooving rebating exercises2. Preparation of Carpentry Joints3. Making of utility models such as moulds for gloves, balloons, rubber band, nipples, fingertips4. Prepare pattern from blue printsUNIT – II: FittingIntroduction – Objectives – Familiarization of tools – Hand tools – marking tools – Cutting tools –files – Striking Tools. Holding devices – Miscellaneous Tools.Measuring tools such as Steel rule, Try square, Vernier caliper, Micrometer, Bevel square,Combination set.Work Practice1. Cutting, Chipping, Filling, Scribing, drilling, roaming, tapping and dieing exercises.2. Making of utility models (Group activity)3. Marking, measuring and checking instruments are to be used during working.UNIT – III: Sheet MetalMetals used for sheet metal work, gauge, tools, kit, stear, strips, cutter, notches.Sheet Metal works harm, Sear, rolling & forming, operations, Bending and Crimping. Pipe bending,riveting, soldering and spot welding.Calculation in sheet metal work. Allowances for metal thickness. Calculation of sheet requirement.UNIT – IV: Basic Machine OperationsLatheWork and Tool holding devices, Cutting tools, materials and specification, Coolants.Speed and feed fora) Cast Iron b) Mild steel c) Alloy steel d) Brass.Alignment – Cylindrical and Taper operation, external threading, cutting.Drilling MachinesTypes – Hand drill and borer drillBands type and hand drill.Tool and work holding devicesDrill bits – types, specifications.Speed and Feed for working on different materials like cast iron, mild steel, brass, Aluminium diesand tap.Drilling and threading operation.58