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Leightons study cards > Wood, Metal And Plastic > Flashcards

Wood, Metal And Plastic Flashcards

1
Q

Name the 3 types of woods

A

Softwood
Hardwood
Manufactured

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2
Q

Give some examples of softwood

A 
Scots pine
Spruce
birch
Douglas fir
redwood
yew
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3
Q

Give some examples of hardwood

A

Oak
Mahogany
Beech
Ash

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4
Q

What wood can be coniferous?

A

Softwood

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5
Q

What wood can be deciduous?

A

Hardwood

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6
Q

How do you identify

a softwood tree?

A

Softwood have needles, pines and are evergreen

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7
Q

How do you identify

a hardwood tree?

A

Harwood does not have needles and pine cones. The leaves also fall off annually

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8
Q

What is a manufactured wood?

A

Manufactured woods are made from machines and are made up of scraps of wood

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9
Q

Give some examples of manufactured wood

A 
Plywood
MDF
Chipboard
Blockboard
Hardboard
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10
Q

Name some wood work joints

A 
Mortise and Tenon
  (stopped and through)
Lap joint
Butt rub joint
Dowel Joint
Rebait joint
Having joint
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11
Q

What is a thermoplastic?

A

A plastic that can be heated and shaped as many times as you want

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12
Q

What is a thermosetting plastic?

A

A plastic that can only be heated and shaped once

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13
Q

Give some examples of

thermoplastics

A

Acrylic
Polystyrene
Polythene ( HDPE & CDPE)

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14
Q

Give some examples of

thermosetting plastics

A

Epoxy resin

Polyester

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15
Q

How can you tell if something has been injection moulded?

A 
Look for the:
Injection marks
Ejection marks
The split lines
Surface designs
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16
Q

What plastic process would be used to make a wheelie bin?

A

Rotation moulding

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17
Q

What plastic process would be used to make

tubes, boxes and bars?

A

Extrusion moulding

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18
Q

What plastic process would you use to make chairs?

A

Injection moulding

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19
Q

What plastic process would you use to make plastic bottles?

A

Blow moulding

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20
Q

What plastic process would you use to make biscuit trays?

A

Vacuum forming

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21
Q

What are the 2 advantages of using plastic dip moulding?

A

Makes it look better

Protects metal from rust

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22
Q

Name the 4 main parts of a

Wood turning lathe

A

Headstock
Tailstock
Tool rest
Bed

23
Q

Name some wood turning tools

A 
Revolving centre 
Dead centre
Fork centre
Parting took
Gouge
Round scraper
Skew chisel
24
Q

What are face plates used for?

A

To make wooden bowls on the lathe

25
Q

What is the 1st stage in wood turning?

A

On both ends of the wood mark a line from corner to corner to establish the centre

26
Q

What is the 2nd stage in wood turning?

A

On one end of wood, using a centre punch, make a hole

27
Q

What is the 3rd stage of wood turning?

A

On the opposite side of the centre punch cut a kerf for the centre fork

28
Q

What is the 4th stage in wood turning?

A

Plane all 4 corners from top to bottom to make a octagon shape

29
Q

Name the metal lathe processes

A 
knurling
Facing off
Parting off
Parallel turning 
Taper turning
Centre drilling
Chamfering
30
Q

What are the main parts of the metal work lathe?

A 
Headstock 
Tailstock 
Bed
Tool post
3 jaw chuck
Saddle
Saddle wheel
Cross slide
Compound slide
31
Q

What is the skew chisel used for?

A

Used to give a good finish on wood when working on the lathe

32
Q

What is the round scraper used for?

A

They are used for working on the inside of wooden bowls & goblets

33
Q

What are Revolving centres used for?

A

Used to support long pieces of wood and metal when working on the wood or metal lathe

34
Q

Name the plastic processes

A 
Extrusion 
injection 
blow
rotational 
vacuum forming
line bending
35
Q

What is an alloy?

A

A mixture of pure metals or a metal with a substance such as carbon added

steel (iron & carbon)
duralumin (aluminium & copper)
brass (copper & zinc)
bronze (copper & tin)

36
Q

What is a ferrous metal?

A

A metal that contains iron

cast iron
mild steel
high carbon steel

37
Q

What is a non-ferrous metal?

A

A metal that doesn’t contain iron

aluminium
copper
brass
duralumin 
lead
tin
zinc
38
Q

What shapes do metals come in?

A 
round rod
sheet
squares
flats
tubes
angled
39
Q

What is engineer’s blue?

A

Blue ink that is applied to metal to make markings out easier

40
Q

What is the difference

between an engineers square and a try square?

A

An engineer square is smaller and made of metal. It can be used on metal and plastic

41
Q

What is a centre punch used for?

A

Before metal can be drilled there must be a centre punch so the drill bit doesn’t slide on the metal

42
Q

What are the spring dividers

used for?

A

Used to mark out circles and arks

43
Q

Why is a micro meter better than a steel rule?

A

A micrometer is a lot more accurate and you can see smaller sizes

44
Q

What is an odd leg calliper used for?

A

They are used to mark out lines parallel to the edge on metal

45
Q

What are tin snips, notchers and guillotines used for?

A

Used to cut sheets of metal

46
Q

Name the 3 taps

A

Taper tap
Second tap
Plug tap

47
Q

What tool hold taps?

A

Tap wrench

48
Q

Name the 4 rivets

A

Snap/round headed
Countersink
Flat
Pop

49
Q

what is work hardening?

A

if a material has been bent, hammered or twisted consistently over a period of time the metal will harden

50
Q

what is annealing?

A

used to fix work hardening by softening the metal

51
Q

what is malleability?

A

this is the ability of material to withstand being hammered, rolled or bend without snapping

52
Q

what is ductility?

A

this is the ability of material to withstand being stretched and not breaking

53
Q

what is toughness?

A

the amount of energy it can absorb without breaking and measures its ability to withstand shocks, the opposite of brittleness

54
Q

what is brittleness?

A

hard but easy to brake

Leightons study cards (7 decks)

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