Forming, redistribution and addition processes

Question 1

Die cutters

Answer 1

Are used to cut out nets of papers or boards

Question 2

Vacuum forming

Answer 2

Slow process involving a polymer being sucked onto a mould via a vacuum pump

Question 3

Thermoforming

Answer 3

Plastic sheet is heated and placed between a positive and negative mould before being pushed together

Question 4

Calendering

Answer 4

Calendering uses rollers to thin sheets of polymers into a thin film

Question 5

Injection moulding

Answer 5

Used for complex items made from polymers and a hydraulic motor pushes the molten polymer into the mould.

Question 6

Blow moulding

Answer 6

Used for making water bottles, molten polymer is placed into a mould and air is pumped into it making the material go to the sides of the mould

Question 7

Rotational moulding

Answer 7

Is used for making cylindrical, symmetrical products. The polymer powder is placed into the mould and continuously turned until and even layer is coating the inside of the mould

Question 8

Extrusion

Answer 8

Is used to make solid rods, hollow tubes and angles, the polymer is forced through a die to form the shape of the extrusion