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DT > Timbers > Flashcards

Timbers Flashcards

1
Q

Properties of coniferous/softwood tree?

A

Grow in cooler climates,
softer and easy to work with
cone-bearing trees, grow tall
loser grain structure
Often a building material
Grow faster than hardwoods

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2
Q

Properties of deciduous/hardwood trees?

A

Are usually quite hard
Grow in temperate climates
Seeds are enclosed in fruit
Slower growing trees (100 years)
Tighter grain
Very expensive
Mostly Found in Tropical or subtropical countries

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3
Q

Types of Coniferous trees?

A

Larch
Pine
Spruce
Redwood

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4
Q

Types of deciduous trees?

A

Ash
Beech
Mahogany
Oak
Balsa

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5
Q

Properties of manufactured boards?

A

Many thicknesses
Inexpensive
Covered with a thin layer of real wood called veneer
Made from waste wood
Large sheets of consistant quantity

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6
Q

Types of manufactured boards?

A

MDF (medium density fibre)
Plywood
Chipboard

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7
Q

What is conversion?

A

The process of cutting tree trunks into plants in a sawmill where they become timber

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8
Q

What is seasoning?

A

The process of drying the planks out either using a Kiln to heat it up or leave it out naturally

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9
Q

What are the two types of seasoning?

A

Air seasoning
Kiln seasoning

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10
Q

Physical Properties of Ash?

A

Pale coloured, narrow grain

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11
Q

Physical Properties of Beech?

A

Slight pink tint, close grain

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12
Q

Physical properties of mahogany?

A

Dark-reddish colour, very close grain

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13
Q

Physical properties of oak?

A

Moderate-brown colour with unique and attractive grain markings

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14
Q

Physical properties of Balsa?

A

Pale and wide-spaced grain due to it being a fast-growing hardwood

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15
Q

Physical properties of Larch?

A

Pale coloured with a contrasting darker grain, knotty

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16
Q

Physical properties of Pine?

A

Pale coloured with aesthetically pleasing grain

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17
Q

Physical properties of Spruce?

A

Pale cream with an even grain

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18
Q

Common uses of Ash?

A

Sports equipment, ladders

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19
Q

Common uses of Beech?

A

Furniture, children’s toys, workshop tool handles and bench tops

20
Q

Common uses of Mahogany?

A

Good quality furniture, panelling and veneers

21
Q

Common uses of oak?

A

Timber framed buildings, high quality furniture, flooring

22
Q

Common uses of Balsa?

A

Model making, floats and rafts

23
Q

Common uses of spruce?

A

Fencing, fence posts, cladding and decking

24
Q

Common uses of pine?

A

Interior joinery and furniture, window frames

25
Q

Common uses of spruce?

A

Bedroom furniture, stringed musical instruments

26
Q

Physical properties of Medium-density fibreboard?

A

Smooth, light brown, can be veneered

27
Q

Physical properties of Plywood?

A

Odd number of layers of veneer glued at 90 degree angles for strength, aesthetically pleasing outer layer

28
Q

Physical properties of Chipboard?

A

Compacted wood chips, laminated with a variety of coverings, end cuts are difficult to finish

29
Q

What is Medium-density fibreboard (MDF)?

A

Compressed board that is manufactured from fine fibres of wood combined with a synthetic adhesive. Compressed between two heated plates. Made from low-grade softwood and hardwood timber along with waste wood from other manufacturing processes

30
Q

What is plywood?

A

Laminated board made up of several veneers of wood glued on top of each other. Each layer is at a 90 degree angle. The grain is running in the same direction

31
Q

What is chipboard?

A

Manufacture board made up of several chips of timber glued together under pressure

32
Q

Common uses of MDF?

A

Flat-pack furniture, decorative mouldings and shop interiors

33
Q

Common uses of plywood?

A

Laminated flooring, roofing and furniture

34
Q

Common uses of chipboard?

A

Kitchen work surfaces, kitchen cupboards and flooring

35
Q

Working properties of Ash?

A

Flexible and good for steam bending,
tough

36
Q

Working properties of beech

A

Tough
Durable
Smooth to finish

37
Q

Working properties of mahogany?

A

Cuts and polishes easily
Gives a fine finish

38
Q

Working properties of Oak?

A

Tough and durable
Polishes well

39
Q

Working properties of Balsa?

A

Very soft and easy to form

40
Q

Working properties of Larch?

A

Durable
Easy to machine
High sap content gives it good water resistance

41
Q

Working properties of Pine?

A

Lightweight
Easy to form

42
Q

Working properties of Spruce?

A

Easy to form
Takes stain colour well

43
Q

Working properties of MDF?

A

Smooth and easy to finish
Absorbs moisture so not suitable for outdoor use

44
Q

Working properties of Plywood?

A

Easy to cut and finish
Can be stained or painting

45
Q

Working properties of Chipboard?

A

Strong but absorbent to water

DT (13 decks)

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