Filler Rod/Tungsten
Filler rod for Mild steel/Carbon steel
ER70S2
Direct Current- flows in one direction
What is the End cap?
This piece screws into the back of the torch and protects the tungsten.
What is GTAW known for?
Thin gauge metals and root passes on pipe
Filler Rod for Aluminum
ER4043
Electrons flow from Electrode (tungsten) to the workpiece, used for carbon steel, stainless, ferrous metals.
What is the Collet?
This piece slides into the collet body and conducts the current to the tungsten.
What does ER70S2 stand for?
ER- Electrode/rod
70- Tensile strength
S- Solid
2- Chemical Composition
Filler Rod for Stainless
ER4043
Direct Current Electrode Positive- Electrons flow from workpiece to the electrode, rarely used in GTAW because its lack of penetration
What is the Torch Holder?
Holds everything together and is connected to the power source.
What does the foot pedal control?
Amperage, heat control
True or false, tungsten is a consumable electrode.
False
What is AC and used with what metal?
Alternating Current and used on nonferrous metals (aluminum)- positive and negative valves.
What torch part is the piece that delivers shielding gas to the nozzle?
Collet Body
What shielding gas is used for GTAW?
100 % Argon
What 3 things determine what tungsten you should use?
Material Type, Thickness, and Welding polarity (AC/DC)
What is the differences between Air cooled and Water Cooled Torches?
Air cooled is for short cycles of welding on thin gauge metals at low amps.
Water cooled is for above 200 amps, longer cycles of welding and is cooled by coolant in the torch.
What is the part that directs the flow of shielding gas around the tungsten and the weld puddle.
Gas Nozzle
List all the Tungsten and matching colors