materials Flashcards

1
Q

List 4 types of man-made woods?

A
  • medium-density fibreboard (MDF)
  • chipboard
  • plywood
  • hardboard
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2
Q

What are the properties of MDF?

A
  • Has a smooth, even surface
  • Easily machined and painted
  • Available in water and fire resistant form
  • Often veneered or painted to improve its appearance
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3
Q

What are the uses for MDF?

A

furniture and interior panelling

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4
Q

What are the properties for chipboard?

A
  • Made from chips of wood glued together with urea formaldehyde
  • Usually veneered with an attractive hardwood or covered in a plastic laminate
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5
Q

What are the uses for chipboard?

A
  • Kitchen and bedroom furniture
  • Shelving and general DIY work
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6
Q

What are the properties of plywood?

A
  • A very strong board, constructed of layers of veneer or piles, which are glued together with the grains at 90 degrees to each other
  • Interior and exterior grades available
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7
Q

What are the uses for plywood?

A
  • furniture making
  • boat building and exterior work
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8
Q

What are the properties of hardboard?

A
  • A very cheap particle board
  • Can have a laminated plastic surface
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9
Q

What are the uses for hardboard?

A

Kitchen unit and furniture back panels

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10
Q

List 4 types of hardwoods?

A
  • Oak
  • Mahogany
  • Beech
  • Ash
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11
Q

List 4 types of softwoods?

A
  • Pine
  • larch
  • cedar
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12
Q

What are three examples of adhesives?

A
  • P.V.A
  • Epoxy
  • Contact adhesive
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13
Q

What is P.V.A?

A
  • Poly vinyl acetate: is best for joining 2 pieces of wood together
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14
Q

What is epoxy?

A

A thermosetting resin that can be used to bond most types of materials

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15
Q

What is contact adhesive?

A

A glue type that creates a tacky bond in both surfaces to be joined

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16
Q

What can contact adhesive be used with?

A

most materials

17
Q

What are the different types of wood joints?

A
  • lap joint
  • finger joint
  • Dowel joint (has two holes)
  • dovetail joint
  • mortise + tenon joint
18
Q

What are the permanent methods of joining woods?

A
  • glues
  • welding
  • rivets
19
Q

What are the temporary methods of joining woods?

A
  • screws
  • bolts
  • nails
20
Q

What are surface finishes?

A

One of the last stages of making a product. Adds a protective layer and improves the products visual appearance

21
Q

What are examples of surface finishes?

A

varnish, paint, wax, polish

22
Q

What is CAD?

A

computer aided design

23
Q

What is CAM?

A

computer aided manufacturer

24
Q

What is CNC?

A

computer numerical control