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Dt 10 > Manufacturing And Materials Term 1 > Flashcards

Manufacturing And Materials Term 1 Flashcards

(60 cards)

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1
Q

Give three examples of softwoods

A

Pine, spuce and redwood

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2
Q

Give three examples of hardwood

A

Ash, beech and oak

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3
Q

Give the 3 characteristics of softwood comapred to hardwood

A

They are softer and easier to work with, grow faster and used as building material

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4
Q

Give 3 characteristics of hardwood

A

Very expensive, lose their leaves in the winter and are hard

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5
Q

What is another name for softwood and hardwood?

A

Softwood-coniferous
Hardwood-deciduous

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6
Q

How can you tell if something is made out of MDF?

A

There is no grain, and it is very clean

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7
Q

What are manufactured boards

A

Boards that are covered with a thin layer of real wood called veneer

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8
Q

What are the characteristics of manufactured boards

A

Often made from waste wood and so are inexpensive

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9
Q

Name 2 examples of manufacted boards

A

MDF, chipboard and plywood

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10
Q

What is conversion in timber

A

After being cut (felled), tree trunks are stripped of their bark and cut into usable planks, into timber

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11
Q

What is seasoning in timber

A

Newly cut timber has lots of moisture and so can rot and split, so moisture is removed by things like air seasoning

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12
Q

What is the fsc

A

The forest stewardship Council it’s an organisation that helps protect the sustainability of forests

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13
Q

Where do metals come from

A

The ground in ores, metals embedded in stone

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14
Q

What is ferrous

A

When a metal has iron and so is magnetic

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15
Q

What is non ferrous

A

When a metal has no iron and isn’t magnetic

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16
Q

How can you remove the stone from an ore

A

By using a furnace or electrolysis

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17
Q

What are alloys

A

A mixture of two or more metals to make a new metal with improved characteristics

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18
Q

Give 3 examples of ferrous metals

A

Cast iron,low carbon and high carbon steel

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19
Q

Give three examples of non ferrous metals

A

Zinc, copper, aluminium

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20
Q

What are polymers

A

Plastic can be produced in any colour, shape, are cheap and can be found in crude oil

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21
Q

What are thermoforming polymers?

A

Plastics that can be reheated and shaped in various ways, they can be recycled, but often weaken

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22
Q

What are thermosetting polymers?

A

Plastic that one I set cannot be reheated to shape and mould

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23
Q

What are polymer additives and what do they do?

A

Things that can be added to polymers to enhance them

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24
Q

Give two examples of polymer additives

A

Pigments, for colour and plasticisers that help them be soft and flexible

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25
What are stock forms and give two examples
Stock forms are the shapes and sizes which polymers are available. They can be made in powder, tubes and sheets
26
What are smart materials?
Materials that react to stimulus like boiling water and this changes their characteristics and or properties
27
Give three examples of stimuli that can affect smart materials
Stress, temperature and UV light
28
What is a piezoelectric smart material?
Is more material that changes due to stress and pressure and can be used for seat belts and alarms
29
What are phosphorescent smart materials
A smart material, where light changes its properties e.g glow in the dark and watches
30
What are the chronic smart materials?
When temperature affect the small material it changes colour at specific temperatures e.g thermometers
31
What are photochromic smart materials
When UV light stimulates particles in a pigment and so colour changes depending on the lighting e.g sunglasses
32
What is shape memory alloy?
Always remember the shape when they were heated, and if the shape changes it returns to its original state e.g glasses frames and braces
33
What is quality assurance?
Procedure to manage all the functions that affect the quality of manufacturing (production)
34
What is quality control?
Thing that checks against the manufacturing, it focuses on individual products/final products
35
What is the logo for the quality control?
The Lion mark, a British consumer symbol
36
What is the logo for quality assurance?
A heart with an S inside, identifying safe products
37
What is a jig used for?
Tool that helps, you do something accurately
38
What is a mould used for
Something that you pour into that sets and makes the final product
39
What is a the former?
Something to form over something else
40
What is tolerance?
Unacceptable range of differences to the standard
41
Timber manufacturing, turning
Pieces of timber rotated and cutting tools are used to shape the material. This can be used for metal and timber.
42
Timber manufacturing, laminating
A thin strip of wood is glued in a former, and this is often used to create curb shapes in furniture
43
Timber manufacturing, steam bending
Timber can be bent if steamed it softens timber allowing them to be formed easily
44
REMEMBER TO DRAW EACH PROCESS FOR PLASTIC MANUFACTURING REVSION
OR ELSE 🤬🤬🤬🤬🤬
45
Explain vacuum forming
An electric heater warms a plastic sheet, making it flexible and is vacuumed, pushing the plastic down onto the mould
46
Explain blow moulding
A tube of soften plastic is fed into a mould. It is filled with inflates into the mould shape and then clamps close it. This is used for bottles.
47
What is kerfing
Making a cut to a material to make it flexible. This let you make a curved shape
48
Explain injection moulding
Granules are fed into a hopper and goes for a feed screw. Eventually these granules are heated and turning into a liquid that goes into a mould
49
Explain line bending
Putting a sheet of plastic onto way heated wire this bends a sheet of plastic and softens the acrylic
50
Explain extrusion
Granules are fed into a feed group and these are heated. Then they pass out of the screw and cool in a water tank and then are pulled by pull rollers
51
What is mass production?
Where as many products as possible are made
52
What is continuous production?
Where a factory keeps on making products, without stopping
53
What is just in time production?
When a factory makes the exact amount that a customer needs when your customer needs it
54
Give an example of something that is formed by extrusion
A pipe
55
How do you know if something was probably made by injection moulding
If there's detail on something or something is pushed into a mould
56
Given example of something that is made by line, bending
A bent plastic sheet
57
Give me an example of something that is made by vacuum moulding
Lunchboxes and plastic boxes
58
What is stock form?
The form which you bolus in like powder or granules
59
What are the characteristics of the hardwood oak?
Physically, it's brown and has attractive grainIt is tough durable and used for furniture
60
What are the characteristics of the softwood pine?
Pale lightweight easy to form and used for construction

Dt 10 (1 decks)

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