HSC - Woodwork Flashcards
Timber Structure - Cross section
- Bark/epidermis
- Cambium layer
- Phloem/Xylem
- Sapwood
- Growth ring
- Medullary rays
- Latewood
- Early-wood
- Heartwood
- Pith
Properties and Characteristics - Timber
- figure – grain direction – texture – colour – strength – durability – weight – hardness – weathering
Photosynthesis
The process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
Timber industry terms
1) Grade
2) Sizes
- timber boards
- Manufactured boards
Timber Defects
– splits – checks – warping – shakes – bowing – knots – twists and winds
Planning
-- sketches – working drawings – materials lists – calculations – costing
Preparation of Timber
– dressing
– thicknessing
– face
– edge
Widening Joints
– dowelled butt – tongue and groove – rebate – groove and feather – biscuit
Framing Joints
– mitre – halving joints – dowelled – box pin – mortise and tenon joints – bridle joints
Carcase Joints
– rebate
– scribed
– dovetail
– housing
Construction Techniques
– sawing – drilling – edge treatments – nailing and screwing – sanding – scraping – turning – carving – inlaying – marquetry – veneering – parquetry and intarsia – laminating – bending – routing
Assembly of components
– test, fit and check joints
– dry cramp
– use of cramps
– testing for square and flatness
Finishing
– preparation – staining – filling – oils – finishes (oil and water-based) – shellac – french polish – spray finishes
– environmental issues associated with finishing
– industrial processes
Timber recovery and conversion
– sawing: live, quarter, back – flitches and burls – stability – seasoning: air, kiln – equilibrium moisture content (EMC)
Timber Selection considerations
– plantation timbers – exotic timbers – recycling/reusing timbers – ‘green’ timbers – economical usage/waste minimisation – environmental issues/pollution – sustainability – WHS issues
Manufactured boards
– construction and manufacture, veneers, plywood, particle board, fibre boards, block and lamiboards – glues – environmental/WHS issues
Hardware and Fitting
– screws – nails – nuts – bolts – knockdown fittings – hinges – handles – knobs – staples/staple guns – drawer runners – table clips – latches – catches – shelf hangers
Other materials used in timber projects
– glass – metal – polymers – upholstery materials – composite materials
Adhesives
– PVA – epoxy resin – hot melt – urea-formaldehyde – resorcinol – contact
Bark/Epidermis
Outside protective layer
