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Classification (Woods (Hard Woods (Wood from Deciduous trees (lose…
Classification
Woods
Hard Woods
Wood from Deciduous
trees (lose leaves)
Oak, Ash, Mahogany, Teak, Birch, Beech
Softwoods
Wood from coniferous
trees (evergreen)
Pine, Spruce, Douglas Fir, Redwood, Cedar, Larch
Manufactured Board
Man-made wood
based composite
Plywood, Aeroply, Flexi-ply, Chipboard, MDF
Metals
Ferous
Contains Iron
Magnetic and rusts
Low carbon steel
Medium carbon steel, Cast iron
Non Ferrous
Contains no iron
Not magnetic and doesn't rust
Aluminum, Copper, Zinc
Silver, Gold, Titanium, Tin
Alloy
Combination of 2+ elements
One of which is a metal
Ferrous alloys: Stainless steel, Die steel
Non-ferrous alloys: Bronze, Brass, Pewter
Polymers
Thermoplastic
Can be reheated and
moulded multiple times
LDPE, HDPE, PP, HIPS
ABS, PET, Nylon, PVC
Thermosetting
Cannot be reheated
and moulded
UF, MF, Polyester resin
epoxy resin
Elastomer
Can be deformed and will
return to its original shape
Natural rubber, Polyethylene
Neoprene, Silicone
Paper and Boards
Can be cut, scored, folded with simple tools (complaint)
Layout Paper, Cartridge Paper, Tracing Paper,
Bleed-proof Paper, Treated Paper, Watercolour Paper, Corrugated Card, Bleached Card, Mount Board,
Duplex Card, Foil Backed and Laminated Card,
Metal Effect Card, Moulded Pulp
Composites
Made from 2+ materials to
give enhanced properties
Particle Based;
Tungsten Carbide
Concrete
Sheet Based;
Aluminium Composite Board
Engineered Wood (Glulam)
Fibre Based;
Carbon Fibre Reinforced Plastic (CFRP)
Glass Fibre Reinforced Plastic (Fibre Glass)
Smart Materials
Properties Change in
response to environment
Electricity, Heat, Pressure, Light
Shape Memory Alloys, Thermochromic Pigment
Piezo Electric Material
Modern Materials
Made through invention of new processes
Not smart material because they don't
react to external change
Kevlar, Polymorph, Precious Metal Clay
High Density Modelling Foam