Exam Questions Flashcards
advantages to PVA adhesive
- can bond quickcly (1-2hours)
- non toxic so no PPE required
material used for childrens toys can be
- durable
- long lasting
- scratch resistant
advantage to making kids toy out of acryclic
- wide variety of colours which can be changed easily
2 reasons why die casting has been chosen to make batch products
- die casting gives product a nice finish on top
- die casting is good for high production rates
a risk when using contact adhesive
can irritate the skin if come in contact
one reason why tradiotional methods of production are suitable for prototype
large quantaties are not needed and it will be costly to use specialist tools
one reason why CNC (computer numerically controlled) production is used for batch production
- large quantity needed so if its controlled by a computer then it eliminates human error and more time consuming without CNC
why is screen printing suitable for batch production
- low setup cost
- flexible to make / adapt
tools which can be used to mark out the centre point
- scribe
- centre punch
- steel rule
3 advantages of manufacturing in MDF rather than pine
- cheaper
- mdf is easier to work with
- can be flat packed
- mdf can be painted any colour as its smooth
describe the process of tempering
when a metal is heated just below its melting point then cooled down rapidly by quenching it to increase its toughness
what are the working properties of mild steel
- high tensile strength
- high impact strength
- good ductility
what are advantages of kiln seasoning
- quicker process so its ready quicker
- natural seasoning is weather dependant whereas kiln can happen constantly
why might someone pick pine over beech
- pine is easier to work with as its a softwood
3 reasons why mass production might be picked for plastic clothes pegs
- significantly high demand
- pegs are brought in bulk
- more cost efficient
