Introduction to Shielded Metal Arc Welding (SMAW)
Study online at https://quizlet.com/_6it6g3
1. Twist Head & Jaw Two most common types of electrode holders
type
2. Arc Voltage The moment the circuit is closed, the voltage drops to what is called
_____________
3. SMAW Shielded Metal Arc Welding
4. Voltage The pressure of water in a pipe is to electricity
5. Work In order to be performed current must flow through the conductors in a closed
electrical circuit.
6. Amperage The flow of water in a pipe is to electricity
7. SMAW Parts A Power source
A ground cable or clamp
An electrode Cable
A welding electrode and electrode holder
The workpiece
8. Open Circuit Volt- The voltage present when the welding machine power switch is in the ON position,
age but no welding is taking place. It is at is maximum.
9. 5532°C - 6632°C The heat generated as the current crosses the arc from the electrode to the
workpiece.
10. The weld de- As the electrode melts (5532°C - 6632°C) the parent metal and the electrode small
posit is made up particles of molten metal are carried across the arc stream and deposited in the
of metal from molten pool on the parent metal.
where
Mixture of the electrode and the parent metal.
, Introduction to Shielded Metal Arc Welding (SMAW)
Study online at https://quizlet.com/_6it6g3
A mix of the melted electrode and the melted parent ,metal
11. Parent Metal Metal in the workpiece directly beneath the arc.
12. Penetration The force of the arc digs into the workpiece and provides the necessary depth of
_______________ for the weld.
13. Flux Covers the SMAW Electrode
14. Electrodes Core of solid metal wire or a metal tube containing metal powder. The core
conducts the current to the arc and also provides filler metal for the weld joint.
15. Filler Is deposited as the electrode is gradually consumed and the welder moves the
arc over the workpiece (at the correct arc length and travel speed)
16. Coating (Flux) Helps keep the arc stable and concentrated. As the chemicals in the coating
are vaporized they provide shielding required to protect the molten metal from
contamination by atmosphere.
17. Power Source May supply either DC or AC and have controls so the current can be varied in order
to meet the requirements of different welding tasks, materials and positions.
18. Arc Welding Sta- Arc Welding Machine
tion
19. Arc Welding Sta- Workbench
tion
20. Arc Welding Sta- Electrode holder
tion
21. Arc Welding Sta- Stool
tion
, Introduction to Shielded Metal Arc Welding (SMAW)
Study online at https://quizlet.com/_6it6g3
22. Arc Welding Sta- Booth or screen
tion
23. Arc Welding Sta- Work cable and terminals
tion
24. Arc Welding Sta- Ventilation
tion
25. Arc Welding Sta- Ground Clamp
tion
26. Welding Station 1. Ensure welding machine is turned off before proceeding
Inspection
27. Welding Station 2. Inspect all cables and make sure they are free from damage.
Inspection
28. Welding Station 3. Use channel iron to over cables that have to run across aisle-ways. Wheeled
Inspection machines such as forklifts and pallet movers can easily damage cables.
29. Welding Station 4. Check the electrode holder assembly carefully to ensure that:
Inspection •The cable is fastened securely in the holder
•The holder insulation is in good condition
•The holder jaws are clean to ensure good electrical contact with the electrode.
30. Welding Station 5. Check that the connection between the work cable and the workbench is secure
Inspection and not loose or dirty.
31. Welding Station 6. Check that the booth curtains. walls or temporary screens are free from holes
Inspection that might expose others to arc flash.
32. Welding Station
Inspection
Study online at https://quizlet.com/_6it6g3
1. Twist Head & Jaw Two most common types of electrode holders
type
2. Arc Voltage The moment the circuit is closed, the voltage drops to what is called
_____________
3. SMAW Shielded Metal Arc Welding
4. Voltage The pressure of water in a pipe is to electricity
5. Work In order to be performed current must flow through the conductors in a closed
electrical circuit.
6. Amperage The flow of water in a pipe is to electricity
7. SMAW Parts A Power source
A ground cable or clamp
An electrode Cable
A welding electrode and electrode holder
The workpiece
8. Open Circuit Volt- The voltage present when the welding machine power switch is in the ON position,
age but no welding is taking place. It is at is maximum.
9. 5532°C - 6632°C The heat generated as the current crosses the arc from the electrode to the
workpiece.
10. The weld de- As the electrode melts (5532°C - 6632°C) the parent metal and the electrode small
posit is made up particles of molten metal are carried across the arc stream and deposited in the
of metal from molten pool on the parent metal.
where
Mixture of the electrode and the parent metal.
, Introduction to Shielded Metal Arc Welding (SMAW)
Study online at https://quizlet.com/_6it6g3
A mix of the melted electrode and the melted parent ,metal
11. Parent Metal Metal in the workpiece directly beneath the arc.
12. Penetration The force of the arc digs into the workpiece and provides the necessary depth of
_______________ for the weld.
13. Flux Covers the SMAW Electrode
14. Electrodes Core of solid metal wire or a metal tube containing metal powder. The core
conducts the current to the arc and also provides filler metal for the weld joint.
15. Filler Is deposited as the electrode is gradually consumed and the welder moves the
arc over the workpiece (at the correct arc length and travel speed)
16. Coating (Flux) Helps keep the arc stable and concentrated. As the chemicals in the coating
are vaporized they provide shielding required to protect the molten metal from
contamination by atmosphere.
17. Power Source May supply either DC or AC and have controls so the current can be varied in order
to meet the requirements of different welding tasks, materials and positions.
18. Arc Welding Sta- Arc Welding Machine
tion
19. Arc Welding Sta- Workbench
tion
20. Arc Welding Sta- Electrode holder
tion
21. Arc Welding Sta- Stool
tion
, Introduction to Shielded Metal Arc Welding (SMAW)
Study online at https://quizlet.com/_6it6g3
22. Arc Welding Sta- Booth or screen
tion
23. Arc Welding Sta- Work cable and terminals
tion
24. Arc Welding Sta- Ventilation
tion
25. Arc Welding Sta- Ground Clamp
tion
26. Welding Station 1. Ensure welding machine is turned off before proceeding
Inspection
27. Welding Station 2. Inspect all cables and make sure they are free from damage.
Inspection
28. Welding Station 3. Use channel iron to over cables that have to run across aisle-ways. Wheeled
Inspection machines such as forklifts and pallet movers can easily damage cables.
29. Welding Station 4. Check the electrode holder assembly carefully to ensure that:
Inspection •The cable is fastened securely in the holder
•The holder insulation is in good condition
•The holder jaws are clean to ensure good electrical contact with the electrode.
30. Welding Station 5. Check that the connection between the work cable and the workbench is secure
Inspection and not loose or dirty.
31. Welding Station 6. Check that the booth curtains. walls or temporary screens are free from holes
Inspection that might expose others to arc flash.
32. Welding Station
Inspection
