Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Design Technology > GCSE Resistant Materials - Revision > Flashcards

GCSE Resistant Materials - Revision Flashcards

1
Q

How do you mark timber

A

Pencil and Marking knife

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How do you cut timber

A

Rip saw - rough cutting
Coping saw - curvaceous cuts
Tenon saw - straight lines with accuracy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How to clamp timber

A

G-clamps

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What type of timber usually grows faster

A

Softwoods

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How can you avoid timber warping

A

You can season it either naturally or artificially using a kiln

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How does timber warp

A

When the moisture content of different parts of pieces of wood changes unevenly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

6 R’s

A

Reduce
Reuse
Recycle
Rethink
Refuse
Repair

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Softwood examples:

A
  • Scots Pine - cheap, readily available, straight grains but prone to knots, strong, pale; low cost furniture, simple joinery
  • Parana Pine - hard, fairly strong, straight grained and knot free, more expensive, pale yellow, darker brown streaks; better furniture, visible structural carpentry
  • Spruce - not very hard wearing, creamy-white, small hard knots; indoor furniture
  • Yellow Cedar - pale colour, light-weight, rigid; furniture, veneers, boat building
  • Redwood - relatively strong, knots, low cost, durable when suitable clothing or treatment treats it; general woodwork, cupboards, shelves, roofs
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Hardwood examples:

A

Ash - light creamy-brown, open grained; sports equipment wooden ladders, tools

Beech - white, close-grained, hard and strong, prone to warping; furniture, toys, tool handles

Elm - light brown, open grain, tough, resists splitting, water-resistant, durable outside; indoor + outdoor furniture

Mahogany - reddish-brown, interlocking grain, strong and durable; good quality furniture

Oak - light brown, strong, tough, open-grained, steel screws and fittings corroded, certain adhesive react with it; interior woodwork, high quality furniture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Manufactured boards:

A

Blockboard - softwood strips bonded together with adhesive, then sheet of plywood on either side, often with finishing veneer

Chipboard - small chips of wood bonded together with resin and compressed to form sheets. Cheaper but not as strong as plywood or blockboard

Hardboard - pulled wood fibres pressurised until fibres bond together, smooth on one side rough on the other, back of cupboards

MDF - very fine wood dust and resin, stronger than hardboard due to resin, easily finished with veneer/paint

Plywood - veneers of timber, grains at right angles, bonded by resin and pressure, different types :

  • boil resistant plywood
  • flexible plywood
  • interior plywood
  • laser plywood
  • marine plywood
  • weather and boil proof plywood
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Advantages of Manufactured Boards over Natural Timber

A
  • large sizes + standard sizes and thicknesses
  • boards have specific purposes
  • often use elements of waste, environmentally sympathetic
  • uniform with few imperfections
  • do not split
  • ready finished formats
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Timber finishes

A

Wax, French Polish, Varnish, Wood stain, Exterior wood stain, Oil, Paint, cellulose sealant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Plastic finish

A

Buffing Compound/ Polish

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How do you measure timber’s lengths and angles

A

Ruler or Tape measure, Try Square, Mitre Square, Combination Square

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

How do you mark plastic

A

Permanent marker pen and odd-leg calipers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How do you measure plastic length and angles

A

Try, Mitre and combination square, dividers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

How do you mark Metal

A

Straight steel edge and scriber and odd-leg calipers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

How do you measure metal’s angles and lengths

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What type of vice should you use when doing work on timber

A

Woodworking vice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

How does a vacuum former work

A
  1. HIPS is heated
  2. Once hot, solid former pressed onto HIPS from a bed that can rise
  3. Vacuum, all air around former removed
  4. HIPS takes form of solid former
21
Q

How do you cut polymers

A

Coping saw, Hacksaw

22
Q

How do you cut metal

23
Q

Jack plane

A

Dressing timber down to size, rough

24
Q

Smoothing plane

A

Removing very fine shavings

25
Reforming Processes
Injection moulding - thermoforming plastics, heated, injected into mould Extrusion - thermoforming plastics and metals, heated then pushed through a die Sand casting - metals, melted and poured into mould of special sand Die casting - metal melted and forced into hardened tool steel mould
26
What are the different wood joints
- Mortise and tenon (slip into hole) - Dovetail joint (satisfying) - Comb joint (less satisfying) - Butt joint (blocked ends) - Mitre joint (photo frame corner) - Lap joint (clasp two pieces 🤝) - Dowel joint (small circular rod) - Biscuit joint (like dowel but a leaf)
27
What is a composite
A term to describe material made by combining two or more materials together
28
What is a ferrous metal
Metals and alloys containing iron
29
What is a non-ferrous metal
Metals and alloys that do not contain iron
30
What is work hardening
Non-ferrous metal continuously bent, hit or shaped over period of time
31
What is annealing
Heat and then let the metal cool. It’s molecular structure changes and can be cut and shaped more equally.
32
What is a thermoforming plastic
Soften and become malleable when heated.
33
Thermoforming plastics:
Nylon - low friction characteristics, good chemical resistance LDPE and HDPE (polyethylene) - resistant to chemicals and some float Polyvinyl chloride - resistant to chemicals and solvents, good tensile strength and impact resistant Acrylic (PMMA) - hard, good resistance to UV light and weather, tensile strength Polystyrene - poor resistance to UV light Polypropylene - high resistance to chemicals and stress, flexible ABS - durable, resistant to chemicals and weather, rubber like properties
34
What’s are thermosetting plastics
Plastics that harden when heat is applied
35
Thermosetting plastics:
Polyester resin - stable, low-cost, easy to use, good mechanical, chemical resistance and electrical properties Epoxy resin - high adhesive strength, electrical insulation and food chemical resistance Melamine formaldehyde - hard an chemical resistant, resistant Urea formaldehyde - high tensile strength, surface hardness, low water absorption Phenol formaldehyde - high hardness, good thermal stability and chemical resistance
36
How is steam bending completed
Thin layers of timber into a chamber Steam introduced from one end Timber absorbs water as steam cools Malleable and flexible now Positioned into former and clamped Retain the shape of the former
37
How is laminating completed
Thin laminated of timber and bonding then over a former. Layers need to be held in place while adhesives cure and set
38
Temporary joining
Using components with a screw thread
39
What is permanent joining
A process that cannot be easily reversed
40
What type of drill is used for cutting holes at 1-13mm
The twist drill
41
What type of drill is used for cutting holes at 13-40mm
Spade drill/ Forstner bit
42
What type of drill is used for cutting holes at >40mm
Hole saw
43
How does CAD relate to CNC machines
CAD creates the design geometry; CAM designs the tool path while CNC uses the output from the CAM to actually make the part
44
Metal finishes:
Galvanising - chemical process coats the base material in zinc Anodising - electrolysis, acid + electrical current for protective layers on base material Electroplating - chemically using electricity to add layers of other metals Paint - spray or brush Oil/grease - sprayed, rubbed or smeared onto exposed surface areas Polish - machine buffing or by hand using a cloth Plastic coat dipping - metal dipped into tank of thermoplastic coating removed, and left to cool Powder coating - powder is a applied via an electrostatic spray gun. Product heated, powder melts
45
How do jigs and formers work
Holds pieces of material together so they can be joined
46
How does brazing work
Two pieces of metal heated, a third metal introduced to the joint being heated. Once molten heat removed and brass cools and solidifies
47
How does soldering work
Where solder “flows” along the cleaned components bonding then together once it solidifies
48
How does welding work
Heated together and join after it cools and solidifies
49
How does riveting work
Small piece of metal inserted into a hole. Deformed to the extent it cannot be removed

Design Technology (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions