Metal Work/Engineering

Question 1

Name the 3 taps in order

Answer 1

Tapper
2nd
Plug

Question 2

What tool do you use to hold the taps?

Answer 2

Tap wrench

Question 3

What do you use a tap for?

Answer 3

Internal threading

Question 4

What do you use a die holder for?

Answer 4

external threading

Question 5

Name the process for internal threading

Answer 5

• still pilot hole
• put the tap in tap wrench
• cutting compound on the hole
• turn clockwise to begin
• go backwards every few turns
• repeat the last few steps

Question 6

Reasons why to slow down lathe and drill

Answer 6

The material
Size of the object
The process

Question 7

Name the 4 types of rivets

Answer 7

Counter sink
Round head/snap head
Flat head
Pop rivet

Question 8

Why is the taper tap used first in internal threading?

Answer 8

It is the thinnest and create space for the next taps

Question 9

What can be done to ensure a good thread is produced?

Answer 9

Cutting compound
Tap is straight
Used in the laith

Question 10

What is a blind hole?

Answer 10

A hole with a bottom or 1 entrance

Question 11

What is a flat file used for?

Answer 11

To remove material off of metal

Question 12

What is an engineer square used for?

Answer 12

To find 90* angle to then draw a straight line

Question 13

What is marking blue used for?

Answer 13

To make marked out lines stand out more

Question 14

What is a height gauge use for?

Answer 14

Used to measure the height of metal accurately

Question 15

What is an odd leg caliper used for?

Answer 15

To mark straight lines parallel to the edges

Question 16

What is a centre punch used for?

Answer 16

To dent metal so drilling is easier

Question 17

What is a ball pin hammer used for?

Answer 17

To hit centre punches and round headed rivets

Question 18

What are spring dividers used for?

Answer 18

To mark out arks and circles

Question 19

What is a pedestal/ pillar drill used for?

Answer 19

To creat a hole in metal

Question 20

What are tin snips, notchers and guillotines used for?

Answer 20

To cut into sheet metal

Question 21

Name the 4 vices

Answer 21

Hand vice
Machine vice
Engineer’s vice
Tool makers clamp

Question 22

Name the lathe tools

Answer 22

Parting Tool
Round nose
RH knife 
LH knife
Revolving centre
Centre drill
Knurling Tool
Jacobs chuck

Question 23

What is a snap and rivet set?

Answer 23

This is the tool used when riveting to shape the rivet heads

Question 24

What is malleability?

Answer 24

This is the ability of a material to withstand being hammered, rolled or bent without the material breaking

Question 25

Name some pure metals

Answer 25

``` Copper Iron Tin Lead Gold Silver ```

Question 26

Name some alloys

Answer 26

Steel Duralumin Brass Bronze

Question 27

Name some ferrous metal

Answer 27

Cast iron Mild steel High carbon steel

Question 28

Name some non-ferrous metals

Answer 28

``` Aluminium Copper Brass Duralumin Lead Tin Zinc ```

Question 29

Name some forms of supply

Answer 29

``` Round rod Sheet Squares Round tube Flats Square tube Hexagonal bar Rectangular tube Octagonal bar Angle ```

Question 30

What does iron + carbon make?

Answer 30

Steel

Question 31

What happens when you heat up metal and let it cool down slowly?

Answer 31

It becomes softer More malleable Recrystallisation/grains regrows

Question 32

What happens when you hit hot metal with a hammer?

Answer 32

Gets rid of dislocations and Removes unwanted carbon from the metal

Question 33

What happens when you cold work metal?

Answer 33

The grains in the metal fill the dislocations and get squeeze together. So it becomes thinner and harder

Question 34

Why would you anneal metal?

Answer 34

So hard brittle metal becomes more malleable, softer and the grains regrows

Question 35

How do you anneal metal?

Answer 35

Heat the metal up to a certain temperature and allow it to cool slowly

Question 36

Name 2 ways to cold work metal

Answer 36

With a hammer or rolling machine

Question 37

What is hot working?

Answer 37

When you heat up metal and bash it with a hammer to break up and remove carbon from it

Question 38

What is everything made of? Literally

Answer 38

Atoms

Question 39

What is a dislocation?

Answer 39

When there is a gap in the atom pattern/matrix

Question 40

What do you call the atom pattern?

Answer 40

Lattice or matrix

Question 41

What is a unit cell?

Answer 41

Atoms joined together to make a cube

Question 42

What do you call the area between grains?

Answer 42

Grain boundaries

Question 43

What is the chemical symbol for iron?

Answer 43

Fe