Terms
SMAW
Shielded Metal Arc Welding
1st, 2nd and 3rd degree
The three burn classifications
What does the ground clamp do?
Completes the full electrical circuit.
AWS
American welding society
The more complex the weld, the more likely what will happen?
Arc blow
DC
Direct Current
Can you look at the arc light when your partner is welding?
No
What does a stinger do?
The stinger receives the amperage and directs it through the electrode to form the arc.
What does flux do during the SMAW process?
Creates a gas cloud to protect our weld.
The percentage of time a welding machine can continuously be used before losing power.
Duty cycle
OFC
Oxy-Fuel Cutting
What do you wear to protect your hands while welding?
Leather Gloves
Electrons flowing through a resistance gap produce what?
An arc
A higher resistance gap produces more what during welding?
Heat
This controls the size of the arc.
Amperage.
Duty Cycle
The Duty Cycle of a power source is the percentage of a ten (10) minute period that it can operate at the rated output current setting
What should you always wear in the shop?
Safety Glasses
Voltage controls what?
The maximum gap electrons can jump to form an arc.
Between 50 and 80 volts
Open circuit voltage
How can arc blow be corrected or avoided?
Welding away from the ground clamp, or using two ground clamps on each side of the work.
GMAW
Gas Metal Arc Welding
What type of shoes should be worn in the shop?
Closed-toe shoes.
What should you check when your machine isn't turning on?
Make sure the power cord is plugged in Donkey!
After striking an arc, the welding machine drops to what operating voltage?
20 to 30 volts.
If a gas cylinder is leaking, what precautions need to be taken to ensure it is safe.
Placed in a vacant lot, write the problem on it with soapstone and slowly release pressure.