processes Flashcards

1
Q

mass production

A

the production of large quantities of a standardised article by an automated mechanical process

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2
Q

continuous production

A

highly automated production of large quantities 24/7 to maximise productivity

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3
Q

why might you use continuous production

A

-if you know the product is always going to be in high demand e.g nappies
-has to be simplistic with limited components

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4
Q

advantages of continuous production

A

+cheaper for the user
+cheap labour due to minimal workers required

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5
Q

disadvantages of continuous production

A

-initial set up costs high
-quality control issues

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6
Q

batch production

A

made in specific quantities e.g 12 or 1000
labour intensive

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7
Q

advantages of batch production

A

+can be altered to meet demands

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8
Q

disadvantages of batch production

A

-initial set up costs high

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9
Q

one off production

A

one product made at a time, very labour intensive

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10
Q

advantages of one off production

A

+unique
+have to answer client brief exactly

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11
Q

disadvantages of one off production

A

-requires skilled worker
-more expensive
-labour costs expensive

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12
Q

fabrication

A

components joined together by nuts and bolts, welding, riveting

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13
Q

moulding

A

plastics moulded into different forms
casing can be injection moulding
PET bottles can be blow moulded

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14
Q

sintering

A

making objects from powder, by heating the material until particles adhere to each other

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15
Q

laminating

A

bonded layers of materials with bonding agent to form intricate shapes and forms that are much stronger than original

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16
Q

stamping

A

pressing or stamping shapes under high pressure into a former sheet material

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17
Q

milling

A

shaping product from solid block of material

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18
Q

turning

A

rotating materials in a lathe to achieve cylindrical shapes

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19
Q

injection moulding

A

injecting molten material under high pressure into a mould or die to achieve certain form

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20
Q

extrusion

A

pulling or pushing softened material through a specially shaped die to achieve different material properties

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21
Q

bonding

A

gluing or joining different materials together under high pressure to produce sheet form of materials

22
Q

casting

A

material in liquid form poured into a prepared mould
no waste

23
Q

cutting/wasting

A

material removed to create desired shape

24
Q

shaping and forming

A

bending material or laminating wood to form a shape

25
assembly line disadvantages
-work can be repetitive and boring -no job satisfaction
26
assembly line advantages
low level skill and training
27
cell production advantages
better quality products
28
just in time manufacturing
only buy enough stock for immediate use, saves on manufacturing costs
29
advantages of just in time manufacturing
+no large warehouses filled with stock +not tied up in material ands stock standing +if change in product the manufacturing can be changed quickly
30
using standardised parts and components
used to reduce costs e.g nuts and bolts, screws springs or circuit boards
31
advantages of using standardised parts and components
+don't have to specialise in creating own product +concentrate time on product +no space required to manufacture them +save costs
32
disadvantages of using standardised parts and components
-quality not guaranteed -dependant on other company for delivery -dependant on external factors like if the company go on strike
33
primary processing
1.buying raw material, forward ordering 2.processing of material
34
secondary processing
3.assembly of components 4.finishing 5.packaging
35
what are the tools used in batch production
jigs, former, template, pattern and mould
36
blow moulding
-used to manufacture bottles or any hollow containers -heated plastic granules injection moulded into mould where air forces the plastic to the sides to create the shape, cooled then extracted
37
rotational moulding
-used to manufacture hollow plastic products -moulds loaded with thermoplastic powder rotated in a heated chamber until it covers all the insides of the mould, cooled then extracted
38
thermoforming
-sheet plastic is heated then enclosed by the moulds it sits between and a vacuum is applied through the lower mould -mostly used for rigid food packaging
39
vacuum forming
-sheet plastic is stretched into a single-surface mould and held against the mould by applying a vacuum
40
calendaring
-thermoplastic fed into heated rollers a set distance apart to create the right thickness, chilled on the final roller -creates sheet, film and coating materials
41
press forming/ deep drawing
-pressing sheet metal into 3D shapes e.g sinks
42
3D printing
making three-dimensional solid object of any shape from a virtual model using plastic filament
43
laser cutting
form of cutting and decorating material using a fine beam of light controlled by a CNC machine
44
plasma cutting
stream of ionised gas that becomes so hot it vaporises the metal being cut
45
blanking and piercing
blanking- when a part to be used is punched out of a sheet of metal piercing- sheet of metal having a hole punched through it
46
dip moulding
simple and cheap method of manufacturing shapes where a shape is dipped into a melted plastic
47
sand casting
low cost method of casting metal in sand moulds, used for one-off or low volume products
48
steam bending
the moistening of certain woods to make it more pliable (flexible)
49
me when I hate cutting
die cutting -process for cutting, perforating and creasing thin sheets of material to create things like stickers
50
brazing
forming permanent joints in metal by melting a brazing rod at 880°C between two parts
51
TIG welding
precise and high quality form of electric arc welding that uses non-consumable tungsten electrode