Ways Of Making

Question 1

What is vacuum forming?

Answer 1

Uses thermosoftening plastic 
Usually HIPS, cheap and easy to form
Heat plastic
Drop onto a mould
Suck out air, pulling plastic onto mould
When cooled, removed and get product

Question 2

What is extrusion?

Answer 2

Formed by shape of extrusion chamber

Question 3

What is bending?

Answer 3

Card- Easily bent and cut, stretched, scored, squashed
Plastics- Thermosoftening plastic, line bender, strip heater heats line to be bent, put in a jig to form accurate angles
Metals- Folding bars, fold over a shape. Bending machine, almost like a guillotine but doesn’t cut

Question 4

What is pressing?

Answer 4

Two hydraulic presses made to shape of design
Sheet metal goes between
Rams stamp metal into shape

Question 5

What is lithography?

Answer 5

A type of printing
Commercial on paper and card
Works as oil (treated plate) and water don’t mix
1) Treated plates, normally aluminium are photographically exposed (become like an oil plate)
2) Unexposed parts (image) attract ink and reject water
3) Exposed reject ink and attract water
CMYK stands for Cyan, Magenta, Yellow, Black
Usually offset, made tight way around so easier to check
Then print onto a plain printer to reverse the image

Question 6

What is drop moulding?

Answer 6

Damp clay dropped onto a mould
Pressed onto a mould
Mould can be plaster of paris as it absorbs moisture
Clay comes off easily set in shape