Welding and cutting processes (110103f)

Question 1

what is spot welding AKA?

Answer 1

resistance welding

Question 2

what is SMAW?

Answer 2

Shielded metal arc welding (stick welding )

Question 3

What is GMAW?

Answer 3

Gas metal arc welding (solid wire welding with shielding gas)

Question 4

What is FCAW?

Answer 4

flux cored arc welding (hollow wire with flux inside to shield the molten metal)

Question 5

What is GATW?

Answer 5

Gas tungsten arc welding (TIG)

Question 6

what are some advantages of plasma cutting?

Answer 6

fast
no preheat needed
narrow cut allowance
any metal that conducts electricity

Question 7

were does burn back occur?

Answer 7

in the torch body or mixing chamber

Question 8

were does flash back occur?

Answer 8

in the lines to the regulator

Question 9

do you melt the parent material when brazing?

Answer 9

no just the filler material made of usually brass.

Question 10

why do we use flux when brazing?

Answer 10

clean any oxide layers and to protect the braze once complete

Question 11

what type of joint do we use when brazing?

Answer 11

Butt and lap joints