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DT - Coggle Diagram

- - - - planned all round is a process which involves using a planer of thicknesser to reduce the size and achieve a smooth finish
    - - when timber hasn't been planned and it is rough to touch
  - - - when air is circulated around the timber
      - can take about a year
    - - uses heat and pressure to reduce the moisture of wood
      - kills bacteria and insects that can still cause damage to the woof
      - the wood doesn't have to be stored for long
    - - it should be 20% for exterior use
      - 15% for indoor use
      - 10% for interior use that uses heat
  - - - veneer
        
        boards like MDF, chipboard and hardboard are shredded or pulped wood compressed together with a resin and compression
        
        sometimes a thin veneer is put on top of a composite material which improves aesthetics of a material.
        
        a higher price can be charged for a material that have been veneered as they offer strength, aesthetics and value for money
      - lamination techniques
        
        plywood and blackboard are made using lamination techniques
        
        if the wood is laminated together with the grains facing the same direction, the strength if the wood isn't increased.
        
        if the grains of t he wood are at alternate angles the the strength of the wood will be increased
- - - - Hand cutting.
      - Machine based cutting.t
      - Hand cutting involves the use of different saws such as:
        
        Coping saw, tenon saw, dovetail saw, jack saw, pull saws and Japanese flush cut saws.
    - - coping saw
        
        used to cut curved lines
        
        thin blade means its hard to cut straight lines
        
        has a 12-15 TPI (teeth per inch)
      - tenon saw
        
        for cutting woods to form joints
        
        11 TPI