Soldering, Brazing and Welding

Question 1

Does soldering involve heat?

Answer 1

Yes

Question 2

What is soldering commonly used for? (2)

Answer 2

Electrical connections and circuit boards

Question 3

What is soldering?

Answer 3

Soldering is joining two or more metal components together using a metal filler material into the joint.

Question 4

What are the three types of soldering?

Answer 4

Hard, soft and silver

Question 5

In soft soldering, what materials do you use to join metals?

Answer 5

Lead alloys

Question 6

What is the most common heat source in soldering?

Answer 6

Electric soldering Iron

Question 7

What two materials require special solders if they are to be used in This process?

Answer 7

Cast Iron and aluminium

Question 8

What non ferrous metals can soldering be used for? (3)

Answer 8

Tin, lead, copper

Question 9

Which alloy can soldering be used for? (1)

Answer 9

Brass

Question 10

What ferrous metals can soldering be used for? (1)

Answer 10

Steel

Question 11

Gap fill - soft soldering
The process is best confined to _____ fabrication where joints not subjected to ____ and vibration and so do not need to be very ______

Answer 11

Light, heat, strong

Question 12

What is the difference between hard soldering/brazing and soft soldering?

Answer 12

Hard soldering requires a higher temperature

Question 13

What is silver soldering primarily used for? (2)

Answer 13

Silver fro jewellery making and silversmiths

Question 14

True or false

Silver soldering can be used to join together gold.

Answer 14

True

Question 15

What other materials can silver soldering be used for? (3)

Answer 15

Brass, copper, steel

Question 16

Gap fill - what is silver soldering
Silver soldering is the process of permanently _______ two pieces of metal together using ____ to melt pieces of ______ solder, which ____ to fill a prepared joint.

Answer 16

joining, Heat, silver, melt

Question 17

Why is silver soldering used by jewellers?

Answer 17

to protect the precious metal

Question 18

Why is silver soldering used by machinists and technicians?

Answer 18

High tensile strength

Question 19

Why is soft soldering unsuitable for mechanical load-bearing applications?

Answer 19

Because the joint would not be strong enough

Question 20

How might the low temperature in soft soldering be a disadvantage?

Answer 20

The solder could melt under high temperatures

Question 21

Which process requires the highest temperature?

Soft soldering, silver soldering or Brazing

Answer 21

Brazing

Question 22

Why is Brazing commonly used with cast Iron?

Answer 22

It has a very high melting point

Question 23

True or false

Silver soldering can be completed with a soldering Iron

Answer 23

False - only soft soldering can be done with a soldering Iron

Question 24

What temperature is used as a demarcation between soldering and brazing?

Answer 24

450 degrees

Question 25

What are the three types of bonding involving heat? (3)

Answer 25

Soldering, Brazing, welding

Question 26

When would you use Brazing?

Answer 26

When the melting point of the solder is above 450 degrees

Question 27

What is the main disadvantage of brazing in comparison to welding?

Answer 27

The joints from welding are much stronger

Question 28

What is the key difference between welding and brazing?

Answer 28

Welding involves melting the base material

Question 29

What are the 3 types of welding?

Answer 29

MIG, TIG, ARC

Question 30

What is the most common type of welding?

Answer 30

ARC

Question 31

True or false? | In welding, the two pieces have to be the same material

Answer 31

True

Question 32

Finish the sentence | Filler materials can be used in welding as long as...

Answer 32

They are the same material as the pieces being joined

Question 33

Gap fill - ARC welding Arc welding is the process of _______ two metal workpieces together using a ____ covered electrode which is melted in an electric ___ and becomes a fused part of the pieces being welded.

Answer 33

Joining, flux, ARC

Question 34

What does TIG stand for?

Answer 34

Tungsten-inner-gas welding

Question 35

What does MIG stand for?

Answer 35

Metal-inert gas welding

Question 36

True or false | MIG welding is more precise than ARC welding

Answer 36

True

Question 37

Gap fill - TIG welding The TIG process uses the heat generated by an ________ arc between the metals to be joined and an infusible ________ electrode, located in the welding torch. The arc area is shrouded in an _____ or reducing gas shield to protect the weld pool and the tungsten electrode.

Answer 37

Electric, tungsten, inert,

Question 38

What is MIG welding good for?

Answer 38

Good for joining thin pieces of metal

Question 39

What is TIG welding good for?

Answer 39

High weld quality

Question 40

True or false | TIG welding is cheap

Answer 40

False, it has a high weld cost

Question 41

Is TIG welding time consuming?

Answer 41

Yes, it Is a difficult and time-consuming welding process.

Question 42

Why is TIG welding not very applicable in a school environment?

Answer 42

it requires a highly skilled operator

Question 43

What are three applications of TIG welding?

Answer 43

aerospace welding, vehicle/motorcycle and bike manufacturing

Question 44

What is Brazing?

Answer 44

Brazing is where 2 pieces of metal are joined together by melting a DIFFERENT type of metal to form a joint