engineering

engineering

1. materials

   • S.M.A's
     • a smart material is a material that reacts and changes by an external condition for example heat pressure or electricity.
     • shape memory alloys this is an alloy that can remember its shape for example if you twisted a spring out of place to a deformed state it can return to its original state by an external source
     • the 2 main types are piezoelectric - responds to electricity and electroluminescent - responds to light
   • high performance
     • super alloys
       • cubic boron nitride
     • tungsten and titanium
   • modern
     • Kevlar (bulletproof vests)
     • carbon fibre
     • G.R.P glass reinforced plastic
     • metal foam metal that contains pores which increase strength but decrease.

2. technologies

   • robots
   • fibre optics
     • light is sent through glass cables
       • faster communications
         • internet
   • blended wing bodied planes
     • planes with built in wings and rear mounted engines reduces fuel consumption ,less drag and less noise pollution than a commercial airliner
   • Nano technologies
   • hydrogen fuel cell
     • hydrogen reacts with oxygen to create energy to power the car
     • environmentally friendly option

3. scales of production

   • batch
     • mass
       • continuous
         • one off

4. forming processes

   • M.I.G welding metal inert gas
     • using metal gases and electricity to make a smooth weld.
   • casting
     • sand casting
     • die casting
   • forging
     • drop forging
     • press forging
     • upset forging
   • powder metallurgy
     • heating up a work piece and coating it in a special metal powder causing it to strengthen

5. machining processes

   • the lathe
     • cutting tool
     • facing off tool
     • chuck
     • carrige
     • headstock
     • tailstock
   • the milling machine
   • the pillar drill
     • drill bit
     • countersink
     • column
     • platform

6. tools

   • ball pein hammer
   • file
   • vernier caliper
   • odd legged caliper
   • scriber
   • vice
   • sliding bevel

7. types of products

   • aerospace
     • automotive
       • communications
         • electrical
           • mechanical
             • biomedical
               • chemical
                 • petrol plastics
               • syringes
         • telephones
       • cars
     • planes helicopters

8. engineering techniques

   • kaisen good change
     • increases production increases company morale improves assembly standards improves teamwork continuous improvement rather than 1 off change
   • life cycle analysis
     • is used to work out the environmental impact of a product through its life