T2-MATERIALS AND WOOD

T2-MATERIALS AND WOOD

1. RAW MATERIALS

   • Products extracted directly from nature

2. NATURAL AND PROCESSED MATERIALS

   • Artificial
   • Synthetic

3. PROPERTIES OF MATERIALS

   • Mechanical properties
     • 1.Hardness 2.Brittleness 3.Elasticity 4.Mechanical resistance 5.Plasticity 6.Toughness
   • Thermal properties
     • 1.Expansion 2.Thermal conductivity
   • Environmental properties
     • 1.Toxicity 2.Reciclavility 3.Biodegradability 4.Environmental hazard

4. TOOLS

   • Tools are objects designed to carry out mechanical work and tasks

5. TYPES OF WOOD

   • 1.Resinous 2.Non-resinous

6. PROPERTIES OF WOOD

   • 1.Hardness 2.Flexibility 3.Density 4.Thermal and electrical insulation 5.Splitability 6.Toughness 7.Sound conductivity 8.Hygroscopicity

7. FORMS OF WOOD

   • Prefabricated woods
     • 1.Plywood 2.Chipbbboard 3.Fibreboard
   • Natural woods
     • 1.Strips 2.Mouldings or profiles 3.Boards and planks 4.Beams 5.Panels 6.Sheets or veneers

8. WOODWORKING TOOLS

   • 1.Hand saws 2.Hacksaws 3.Machine tools 4.Hammers 5.Mallets 6.Spanners 7.Screwdrivers 8.Boring 9.Smoothings 10.Planing and levelling