Flux It
What size electrode do we use for FCAW?
.045
What is our stick out?
1/2"-1"
What does FCAW-S stand for?
Flux Core Arc Welding-Self Shield
What are the 2 gasses and the percent of their mixture that we use for Dual Shield?
Argon 75%& CO2 25%
What is the minimum shade we use?
10
What does FCAW-G stand for?
Flux Core Arc Welding-Gas
What type of gas does FCAW-S use?
No GAS
What number must we NEVER go over on Acetylene?
15psi
Dual Shield requires what polarity?
Positive
When there's slag we...?
Drag
When the wire breaks and backs up into the machine, this is called what?
Birds nest/ Rats nest
What type of drive rolls do we use?
Knurled
When V's appear in our weld bead, what is this telling us about the travel speed?
Too fast
FCAW is a combination of 2 processes, what are they?
Stick & Mig
What 3 passes go into filling our groove plate?
Root pass, Filler pass and cap
What protects our weld in FCAW?
Slag
Groove plates require what kind of testing?
Bend test
Filler passes are made with what kind of bead?
Filler bead/ Stringer bead
When changing the drive rollers, what should be facing us?
The number of the electrode size .045 or .035
What power supply does FCAW require?
CP constant potential/ CV constant voltage
Why do we require a specific kind of drive roll?
Hollow wire
What power supply does FCAW require?
CP constant potential/ CV constant voltage
The book states that there are 3 reasons for porosity, give me one.
Moisture in the flux
Improper gun Manipulation
Surface Contamination
What is one of the biggest benefits of FCAW-S?
Weld outdoors/ No gas
When scarfing, what are the settings for oxygen and acetylene?
40 & 7