DT Mock Exam

Manufactured Boards

Chipboard

Plywood

vaneers

Glued to eachother

made up of small wood chips compressed and glued

MDF (Medium density fibre)

Hardboards

Benefits

Cheeper

Better for the environment

Uniform flat surface

good for cheep furniture

Structual for furniture

They come in large sheet sizes

Materials and properties

Physical

Working

Mailability

Ductility

Water resistant

Absorbance

Electrical conductivity

Thermal conductivity

Density (ks/M2)

tough, how well it resists impact

Hardness

Ability for the materal to withstand serfice scratches and surface where

strength

Ability for the material to withstand forces e.g. tension and compression

Just in time

Efficient

Rely on distribution of materials and stock

Can make jobs redundant

Dont hold extra stock (stock taking)

can effect jobs

Steamline

Types of motion

Rotory

Osolating

Recipricating

linear

timber

Oak

Birtch

Beech

Mahogony

Pine wood

Acier

Ash

Spagehti trees

Apple Trees

Source conversions

trees are cut doen, the cut down trees are cut into logs and then cut into quater sawn

Through Sawn is more lightly to split and warp

planks

After all of y

after all of the processes are done they need to be dried out ion a kilm for arround 6-12 months