28033363
Description
| Question | Answer |
| DESIGN | WOODS |
| Timber | Wood used in manufacturing of an attract |
| Hardwoods | Nothing to do with how hard the wood is but hardwoods come from deciduous trees, trees that shed leaves in autumn |
| Softwoods | From coniferous trees, these have cones and needles that fall off them |
| Examples of Softwoods | Uses |
| Scots Pine | Low cost furniture, construction, joinery |
| Parana Pine | Better quality Furniture, Structural carpentry |
| Yellow Cedar | Furniture, Veneer, Boats |
| Spruce | Indoor Furniture |
| Redwood | Woodwork, Cupboards, Shelves, Roofs |
| Examples of Hardwoods | Uses |
| Ash | Sports Equipment, Wooden Ladders, Tools |
| Beech | Furniture, Toys, Tool Handles |
| Elm | Indoor and Outdoor Furniture |
| Mahogany | Good Quality Furniture |
| Oak | High Quality Furniture, Interior Woodwork |
| Processes | And What they do |
| 3 Types of Plank Manufacture | |
| Kiln Seasoning | The process of airing and drying out timber before use by kiln |
| Natural Seasoning | The process of airing and drying out timber before use by stacking the planks in warmer places |
| Advantages of Kiln Seasoning | - It is easier to control the conditions - Much Quicker - Can monitor stuff such as warping and length |
| Disadvantages of Kiln Seasoning | - Consumes energy - More Expensive - Has a maximum capacity because of its size - Can cause warping |
| Why do we season the timber | - So it remains strong when used - If not then it will change shape and properties as it dries out |
| How to keep seasoned timber | Should be in a controlled environment (temperature, not damp, etc.) , where it is flat as for it not to warp |
| Manufactured Boards | Boards that are man made from natural wood in specific ways |
| Blockboard | Central Core of a softwood, bonded with adhesive with a sheet of plywood in each side and then veneer |
| Chipboard | Small ships of wood bonded together with resin and compressed into sheets, often used for cheaper furniture |
| Hardboard | Pulped Wood Fibres that are pressurised till the fibres bond together producing a side that is rough and a side that is smooth |
| MDF | Made from fine wood dust and resin pressed into a board |
| Plywood | Made from veneers of timber with the grain of each layer being at right angles and are bonded by resin and pressure |
| Advantages of Manufactured Boards | - Available in large size - Have specific purposes and specific properties - Often use any wasted timber - Uniform with few imperfections - Do not split - Can be in finished formats |
| Steambending | Veneer are put in a steam chamber. Steam is introduced ate one end at it travels through heating it and as the steam cools it condenses back to water and drains away. After some time u take it out and it is malleable and have a change of properties |
| Laminating | Involves no heat but uses multiple thin layers of veneer and bonding them to each other over a former |
1 comment
over 4 years ago
pog
Want to create your own Flashcards for free with GoConqr? Learn more.