Welding Process
Equipment
Tungsten
Filler Metals
Welding Technique
100
Can reach a temperature of 11,000 degrees F.
What is the arc?
100
Acts as a handle for the welder to use as control for directing welding current and shielding gas to the weld joint.
What is torch or torch handle?
100
The non-consumable electrode used to provide the arc.
What is tungsten?
100
Are manufactured for joining most metals including steel, stainless steel, aluminum, magnesium, and copper alloys.
What is filler metal or filler rod?
100
A general rule is to set this distance based on 1.5 to 2.5 times the diameter.
What is Tungsten Electrode Extension or Stickout.
200
Argon, Helium, Argon/Helium
What are the three GTAW shielding gasses?
200
Allows the welder to control the amount of shielding gas that is used for a weld joint. Also used for GMAW or MIG welding.
What is a flow meter?
200
Name of process where electrode does not become part of the weld.
What is non consumable?
200
Is a mixed material that has properties made by melting at least one pure material along with another to get the best qualities of both.
What is a metal alloy or alloy?
200
Scratching, Touch & Lift-Start, & High Frequency are all common methods.
What is starting and maintaining the arc.
300
Are the three names used to describe a gas shielded, non consumable electrode welding process
What are heli-arc, TIG, or Gas Tungsten Arc Welding?
300
It allows the welder to change the amperage (either increase or decrease) without stopping the weld and adjusting the power source.
What is the remote control, foot pedal or finger tip control?
300
Shaping by removing material equal to 2-3 times the diameter.
What is grinding the tungsten?
300
The end of the filler rod not being melted in the weld puddle. (Hint: Think safety hazard.)
What is a puncture safety hazard with filler metal?
300
Placement of the torch that allows for the control of heat on the work piece.
What is torch or work angle?
400
Are recommended values and should be used as a guideline for setting up equipment
What are welding parameters and tungsten electrode selection tables or charts?
400
Has the built in controls necessary for arc starting and stopping, shielding gas control, and remote amperage control.
What is the GTAW power source or welder?
400
A finished tungsten ground that allows for proper arc control and heat disipation
What is parallel to the tungsten or tungsten is vertical on the grinding wheel?
400
Laying and dipping are two common practices.
What is applying filler metal to the weld puddle.
400
Is maintained for the entire length of the weld joint and is critical for a strong weld bead.
What is Weld Puddle?
500
Autogenous Welding. (Hint: it is one of the two methods for gas tungsten arc welding.)
What is another name for fusion welding.
500
Usually made of ceramic, it directs the shielding gas around the tungsten, arc, and weld puddle.
What is the gas cup, cap or nozzle?
500
Manufacturers use this code for different electrodes to assist the welder in identification.
What is color or color coded?
500
Positively identifying the base metal is important.
What is the best practice for selecting the filler metal.
500
Finishing the weld by making sure enough filler metal has been added to the weld puddle to fill the weld crater.
What is Stopping the Arc?
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