Unit 3-A/B

Question 1

What is fabrication?
Joining components using nuts, bolts, welding or riveting

Question 2

What is moulding?
Shaping melted material into a desired shape using a mould or die

Question 3

What is sintering?
Making objects from powder form by heating below melting point

Question 4

What is laminating?
Bonding different layers of material with a bonding agent

Question 5

What is stamping?
Pressing or stamping shapes into material under high pressure

Question 6

What is milling?
Shaping a product from a solid block of material

Question 7

What is turning?
Rotating materials in a lathe to form cylindrical shapes

Question 8

What is injection moulding?
Injecting molten material under high pressure into a mould or die

Question 9

What materials can be injection moulded well?
Aluminium
plastics

Question 10

What is extrusion?
Pushing or pulling molten material through a die

Question 11

What is bonding?
Glueing or joining different materials together under high pressure to produce sheet materials

Question 12

What is casting?
Material in liquid form poured into a mould

Question 13

What are cutting/wasting processes?
Material being removed to create the desired shape

Question 14

What are shaping and forming processes?
Bending material, laying fiberglass, or laminating wood to form a shape

Question 15

What is a jig?
A tool to make sure parts are made exactly the same

Question 16

What are the advantages of using jigs?
No need to mark out so more efficient
Less chance of errors

Question 17

What is a former?
A tool to make sure parts are shaped or bent to exactly the same shape

Question 18

What is a template?
A tool which can be drawn around to consistently mark and irregular shape

Question 19

What is a pattern?
A replica of finished shape used when casting to make the mould made from cheap, soft material
Also used for vacuum forming

Question 20

What is a mould?
Hollow shape used to cast metal or plastic

Question 21

What are moulds for metal made from?
Special sand
Metal
Plaster

Question 22

What are moulds for resin made from?
Plaster
Rubber

Question 23

What are examples of cutting systems?
Laser cutting
Plasma cutting
Water Jet cutting
Milling cutter

Question 24

How does a laser cutter work?
High intensity light beam burns through material

Question 25

How does a plasma cutter work? Electrical arc to heat and cut through metal Air blows molten metal away

Question 26

How does a water jet cutter work? Water with abrasive injected through a nozzle at a very high pressure

Question 27

How does a milling cutter work? Mechanical cutting using rotating bit to remove material

Question 28

How do CNC machines benefit prototyping? Developments allow creating of high-quality models at much higher speed Quicker development allows them to beat competition to market

Question 29

How does 3D prototyping benefit designers? They can get feedback from clients Assess functionality Feedback on aesthetics Mechanical tests

Question 30

What is a feasibility study? Working out if the idea is worth pursuing to a manufacturing and marketing stage

Question 31

What is analysed in a feasibility study? Cost and investment required Suitable materials Volume needed

Question 32

What benefits can come from a feasibility study? Reduce development time and cost Confidence and security before major investment