Eduqas GCSE Design and Technology manufacturing processes overview quiz quiz

Drilling

Welding

Gluing

Injection moulding

They are far stronger than any glue could ever be, so the joint will never come loose

They give a temporary joint, so the product can be assembled and taken apart

They are completely invisible once fitted, so the product looks neater than a glued one

They can only ever be used on metal products and never on timber or plastic ones

They are exactly the same process, and the two words can be used to mean the same thing

Deforming melts the material down completely, while reforming simply bends a cold solid into shape

Deforming reshapes a solid by force or heat; reforming melts the material and forms it in a mould

Both of them work by removing waste material from a solid block to leave the final shape

Vacuum forming

Injection moulding

Casting

Blow moulding

Once the mould is made, each cap is produced fast at very low unit cost with identical accuracy

The mould itself is very cheap to make, which is why it suits making one-off bespoke items

It cannot reproduce any fine details such as a screw thread, so the caps must be finished by hand

It is a slow hand process carried out by a skilled worker for each individual cap that is made

Continuous

One-off

Mass

Batch

It uses the most expensive materials available, which somehow keeps the unit price down

It makes only a few items at a time, so each one needs very little setting up beforehand

The high tooling and set-up cost is shared over a very large number of identical units

It avoids using any machinery at all, so there are no expensive tooling costs to pay for

50.05 mm and 49.95 mm

51 mm and 49 mm

50.5 mm and 50 mm

50.5 mm and 49.5 mm

It holds the workpiece and guides the tool so every part is made identically

It melts the material down so it can be poured into a mould to set into shape

It checks the finished product against the specification once it has been made

It applies the surface finish, such as paint or lacquer, to the finished part

They are exactly the same thing, and the two terms can be used to mean the very same idea across industry

Quality control checks the finished product; quality assurance is the system that prevents faults arising

Quality control prevents faults arising; quality assurance only checks the product once it is finished

Both of them only ever happen after production has finished and the product has been completed

It paints the steel a bright colour, and the layer of paint stops any air reaching the metal

It melts the surface of the steel and reseals it so that no moisture can ever get inside it

It coats the steel with zinc that forms a barrier and sacrificially corrodes instead of the steel

It removes all of the iron from the steel, so that there is nothing left in it that can rust away

They rust very quickly, so adding any surface finish to them would be completely pointless

They are always painted by hand before sale, so a separate factory finish is never needed

They cannot be coloured at all, so there would be no point in giving them a surface finish

They are self-finishing, with colour and a smooth surface built in during moulding