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IAT 336 > Quiz 2 > Flashcards

Quiz 2 Flashcards

1
Q

Major Design Materials

A
  • Natural / Organics (Wood)
  • Glass
  • Metals
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2
Q

Properties of Wood

A
  • Inexpensive, renewable, easily machined
  • Light, strong, tough
  • Can be moulded to complex shapes
  • Warm in colour and touch
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3
Q

Soda Lime Glass Properties

A
  • Low melting point
  • easy to blow and mould
  • Is cheap
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4
Q

Corning Gorilla Glass

A
  • Made with intense temperature, special trough, robots, and molten salt bath
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5
Q

Metal’s Properties

A
  • Composed on atoms of the same type
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6
Q

Two types of Metals

A

Ferrous and Non Ferous

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7
Q

What are Metal Alloys

A

Used in design and engineering applications and made of 2 + chemical elements of which one is metal

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8
Q

Ferrous Metals

A

Contain irons and have small amounts of other metals or other elements added. They are magnetic and have little resistance to corrosion

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9
Q

Examples of Ferrous Metals

A

Mild Steel
High Speed Steel
Stainless Steel
High Tensile Steel
High Carbon Steel
Cast Iron

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10
Q

Types of Iron Forms

A

Cast or Wrought Forms

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11
Q

Cast Iron Features

A

Resistant to destruction and weakening by oxidation

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12
Q

Uses of Cast Iron

A

Pipes, Machines, and Car Parts

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13
Q

Wrought Iron Features

A

Worked by hand, malleable iron

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14
Q

Features of High Carbon Steel

A

Contains 0.7 - 1.5% carbon

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15
Q

4 Groups of Steel

A

Carbon, Alloy, Stainless, Tool

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16
Q

What is Stainless Steel

A

Has 10-20% chromium as the main alloying element and values for high corrosion resistance.

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17
Q

What is Tool Steel

A

Has tungsten, molybdenum, cobalt, and vanadium in varying amounts to increase heat resistance and durability for cutting and drilling equipment.

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18
Q

What is Case Hardening Metals

A

Also known as surface hardening where the surface of a metal object is hardened while the metal underneath is soft

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19
Q

What are Non Ferrous Metals

A

Metals with no iron, not magnetic and more resistant to corrosion. Good metal conductors

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20
Q

Types of Non Ferrous Metals

A

Aluminium, copper, lead, zinc, and tin

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21
Q

Features of Aluminium

A

Primed with Zinc Chromate to be used on aircraft

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22
Q

BC Ferries Controversy

A

Made with aluminium hulls and superstructures to be lighter, faster, and more fuel efficient but needed special welding techniques causing cost overruns and manufacturing delays

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23
Q

Features of Magnesium

A

Low density, high mechanical strength and dampening capacity. Welds easily and can be plated or painted to prevent corrosion, but can be burned when overheated

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24
Q

Features of Tin

A

Low melting point, easily alloyed with copper, zinc, and lead. Used in solders but is weak for mechanical applications

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25
Features of Zinc Alloy
Used in numerous applications from car components or hardware products. Moderate strength and ductility
26
What happens when you put a force on structures
It deforms depending on the compressive force
27
4 Mechanical Properties of Metals
- Ductility - Compression - Hardness - Brittleness
28
What is Ductility
The abilities of a material to withstand plastic deformation without rupture
29
What is Compression
A measure of the extent to which a materials deforms prior to rupture
30
What is Hardness
The ability of a material to withstand penetration and scratching
31
What is Brittleness
Opposite of ductility and can brittle easily
32
Types of Forces that Act on Structures
Compression, tension, torsion, shear and bending
33
What is stress
The measure of the internal forces acting within a deformable body
34
What is Torsion
Also known as Twisting
35
What is Bending
The behaviour of a structural element subjected to an external load applied perpendicularly to a longitudinal axis of an element
36
What is Shearing
When items on the top when bent will appear longer than the ones on the bottom due to a shorter diameter on the inside versus outside
37
What is Triangulation
Using diagonal struts or angle brackets to strengthen intersections
38
Where are structures at their weakest
At their intersections
39
Three types of Joining Metal
Thermo, Adhesives, Mechanical
40
What are Adhesives
Joining thin materials and invisible joints, often used for load bearing applications
41
Types of Thermo Metal Joining
Soldering, Brazing, Gas Welding, Arc Welding, Spot Seam, Laser Beam Welding
42
What is Soldering
Primarily for conducting electric current. Join metals together using temperatures below 850 F where the solder cools to bond the parts together
43
Considerations for Soldering
Has little strength so it needs to support a load. Is best used when stress isn't a factor
44
Type of solder alloys
Tin lead, tin silver, zinc aluminium
45
What is Brazing
Similar to soldering but done at temperatures above 850. Stronger than soldering because limited alloying occurs between the filler metal and the base metals
46
What is Gas Welding
No filler needed, metal parts are heated above melting to flow together
47
What is Arc Welding
Type of welding that uses a power supply to create an electric arc to melt the metals
48
What is Spot Seam
Rapid economical and simple process for sheet metal fabrication where the sheets are clamped between two electrodes that conduct a measured current
49
What is Laser Beam Welding
a Focused, high powered light beam is directed, shaped and focused precisely on the work piece
50
Types of Mechanical Fasteners
Threaded, Special Purpose, Nonthreaded
51
2 Types of Threaded Fasteners
Mechanical Fasteners and Threaded Fasteners
52
What are Mechanical Fasteners
Using screws to fasten assemblies together
53
What are Threaded Fasteners
When a metal is too soft, use a thread insert which is drilled and tapped to accept a machine screw
54
Types of Finishing Plastics to Add Artwork
1. Heat Transfer 2. Hydro Printing 3. Decals 4. Patterns
55
What is Heat Transfer
Artwork is transferred to fabric from film that is placed between the product and the heat press without messy inks. Clean and environmentally safe and needs a flat surface
56
What is Hydro Printing
Used on metal, plastic, glass, hard woods, various materials to apply onto curved 3D objects via a floating ink layer in a vat of water
57
What is Decal
Pigmented decorations is printed on pre cut transparent with adhesive backing
58
Other types of finishing plastics
- Flocking and Suede Flocking - Finishes`
59
What is Flocking
Placing a soft touch or finish on resin parts where fibres are adhered to the part surface, followed by electrical charge to make the fibres stand
60
Types of Finishes
Metallisation,Electroplating
61
What is Sputtering
A bright durable metallic finish with abrasion resistance
62
What is Deburring
Razor like thin triangular ridges created when a sheet is sheared, cast, or forged
63
Types of Deburring Metal Parts
- Grinding Fluids - Polishing - Shot/Sandblasting`
64
Types of Chemical Metal Finishing
- Electroplating - Electropolishing - Anodic Coating or Anodising - Vacuum Metalling - Porcelain Enamel - Flame Spraying
65
What is Electroplating
Coating of an electrically conductive object with a layer of metal using electrical currents
66
What is Electropolishing
Can produce mirror like surfaces because there is no mechanical contact with the work piece
67
What is Anodic Coating
Oxidation process that converts the surface of aluminium and magnesium to an oxide layer, providing a finish/protection
68
What is Vacuum Metallising
Plating metal is evaporated at high temperatures in a vacuum and deposited on the part. Provides a uniform coating on complex parts
69
What is Porcelain Enamel
Acts as a protective surface for cooking utensils, kitchen and bathroom fixtures. High temperature and acid resistant
70
What is Flame Spraying
Coating processes in which melted materials are sprayed onto a surface

IAT 336 (7 decks)

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