s-y Flashcards
seasoning
the drying of wood to make it stronger and less likely to rot or twist
smart material
a material that changes its properties in response to stimuli (a change in the environment)
softwood
a type of wood that comes from fast-growing trees with needle-like leaves (mainly evergreen trees)
it’s usually less dense and softer than hardwoods
standard components
common fixings and parts that manufacturers buy instead of manufacturing themselves
staple fibre
a short fibre
e.g. cotton fibres are staple fibres
stock forms
the different shapes a material can be bought in
sustainable
a sustainable process or material is one that can be used without causing a permanent damage to the environment or using up finite resources
synthetic fibre
a man-made fibre that is produced from polymers
system
a collection of parts that work together to do a particular function
made up of inputs, processes and outputs
target market
the group of people you want to sell a product to
technology push
when advances in technolgy drive the design of new products and the redesign of old ones
thermoforming plastic
a type of plastic that can be melted and remoulded over and over again
thermosetting plastic
a type of plastic that undergoes a chemical change when heated, which makes its permanently hard and rigid.
thermosetting plastics can’t be remoulded
tolerance
the margin of error allowed for a measurement of part of a product.
tolerances are usually given as and upper and lower limit
e.g. 23 mm (±2)
woven fabric
a fabric made by interlacing two sets of yarn
