Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Mod 6 > Non Ferrous > Flashcards

Non Ferrous Flashcards

1
Q

Why is titanium widely used?

A

Because it is as strong as steel at around 56% of the weight.
Temperature and corrosion resistant.

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

What happen when titanium is heated to high temperatures?

A

It must be protected from the atmosphere to stop it combining with oxygen.

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

What methods are used when working titanium?

A

Similar methods to working CRES such as sheared, drawn, or pressed.

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

What material must cutting tools for titanium be?

A

Good quality steel that’s kept very sharp

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

Why must a fire extinguisher be kept near any grinding operations on titanium?

A

Because the hot sparks from the grinding wheel can ignite the titanium dust swarf that can build up.

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

Method for cutting titanium

A 
Low speed
High feed
Plenty of cutting fluid
Replace tools at first sign of wear
Don’t linger when cutting
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are somethings to be careful with when cutting titanium?

A

Poor heat conduction- heat is focused on cutting point
Has a strong alloying tendency
Has a low modulus- needs support or more force from cutting tool

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

What are the main properties of pure aluminium?

A

Oxide layer that is corrosion resistant
Extremely malleable and soft
Lightweight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the forms of aluminium alloys?

A

Cast or wrought

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

Aluminium is how much more conductive that copper of equal weight?

A

Twice as conductive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

How much lighter than steel is aluminium?

A

Three time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is an ALclad sheet of metal?

A

Layered with a layer of pure aluminium and 1% zinc for corrosion protection.

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

How is cladding identified on a sheet?

A

Ink print

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

How is aluminium designated?

A

First digit is the major alloying element
The second is the changes made to the element
Last two designate the different alloys in the group

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

What does an A symbolise in the designation?

A

ALclad

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

What does the letters at the end of the designation identify?

A

Heat treatment done to the metal, if possible

17
Q

1100 series aluminium?

A

Pure aluminium

Not heat treatable

18
Q

What are the 4 main heat treatable aluminium alloys?

A

2011 (copper)
2017
2024
7075 (zinc)

19
Q

What are the main properties of 2011 (copper) alloys?

A

Excellent hardness, strength, and mechanical properties
Good corrosion resistance
Most free machining of common alloys

20
Q

What are the main properties of 7075 (zinc) alloys?

A

Very high strength to density ratio
Poor corrosion resistance
Non-weldable

21
Q

Where would the method of cooling for annealing aluminium be dictated?

A

SRM

22
Q

What is solution heat treatment?

A

The aluminium is put in either molten sodium, a bath of potassium nitrate, or a hot air furnace for heating. When the copper is taken into the solid solution, it is cooled or quenched for hardening.

23
Q

What are T3, 4, and 6 designating?

A

3- solution heat treated and cold worked
4- solution heat treated and naturally aged
6- solution heat treated and artificially aged

24
Q

Different temper designations

A 
F- as fabricated 
O- annealed
H- strain hardened
W- solution heat treated
T- Heat treated to produce stable temps other that F, O, or H
25
Q

What are the three detrimental qualities of magnesium?

A

Difficult to work with- easy to crack
Highly susceptible to corrosion
Highly flammable

26
Q

What are the advantages of magnesium alloys?

A

High strength to weight ratio

Non magnetic

27
Q

What is the most widely used magnesium designation?

A

American Society For Testing Materials

28
Q

What is GLARE?

A

Glass reinforced laminate- thin layers of metal put joined together

29
Q

What is usually used in GLARE on aircraft?

A

Alternating aluminium and prepreg glass fibre layers

30
Q

What is the benefit of GLARE?

A

Can be tailored to the task based on how its layered

31
Q

What are the advantages of GLARE?

A 
High strength
Fatigue resistance
Damage tolerant
Impact and blast resistant
Fire resistant
Thermal isolation
32
Q

What are some applications of GLARE?

A

Leading edge
Cargo floors and liners
Blast resistant container

Mod 6 (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions