TECHNOLOGICAL MATERIALS, TOOLS AND GOOD

TECHNOLOGICAL MATERIALS, TOOLS AND GOOD

1. MATERIALS AND RAW MATERIALS

   • Selecting materials
     • The type of material
     • function
     • Durability
     • Cost of materials
     • The kinds of additional elements
     • The techniques to be used
   • RAW MATERIALS
   • NATURAL AND PROCESSED MATEIALS

2. THE PROPERTIES OF MATERIALS

   • Mechanical properties
     • mechanical resistance
     • Toughness
     • Brittleness
     • elasticity
     • hardness
     • Plasticity
   • Thermical properties
     • expansion
     • thermal conductivity
   • Enviorment properties
     • toxicity
     • recyclability
     • enviormental hazarg
     • Biodegadability

3. TOOLS

   • what is a tool?
     • Tools may be defined as objct designed to carry out mechanical work and tasks
   • The first tools made by humans
   • machine tools

4. WOOD

   • parts of a trunk
     • heartwood
     • pith
     • sapwood
     • growth rings
     • cambium
     • bark
   • Types of a good
     • non-resinous
     • resinous
   • obtaining wood

5. THE PROPERTIES OF WOOD

   • diferent types
     • hardnes
     • thermal and electrical insulation
     • flexibility
     • density
     • sound conductivity
     • hygroscopicity
     • spiltability
     • toughess

6. DIFFERENTS FORMS OF WOOD

   • natural wood
   • prefabricated wood
     • commercial forms
       • plywood
       • chipboard
       • fibreboard

7. CELLULOSE-BASED WOD DERIVATIVES

   • cardboard
   • paper

8. WOODWORKING TOOLS

   • cutting tools
     • machine tools
     • hacksaws
     • basic hand saws
   • impact tools
     • mallets
     • hammers
   • assembly tools
     • spanners
     • screwdrivers
   • shaving and drilling tools
     • planning and levelling
     • boring
     • smoothing
     • machine tools

9. JOINTS

   • permanent joints
     • nailed joints
       • common nails
       • finishing nails
     • dowel joints
     • fixed joints
   • temporary joints