discontinuity's
what is porosity
a common defect consisting of small, gas-filled cavities or holes within the weld metal that form when unwanted gases become trapped as the molten weld solidifies.
ER 7018 can be welded in which position(s) ?
all positions
wearing wet clothing while arc welding makes you susceptible to?
Electric shock
what are solid lines on drawing called?
reference lines
what can cause overlap?
Focusing on one joint member to much
What is undercut
A groove melted into the base metal adjacent to the weld toe or root and left unfilled by weld metal.
why are 6010 electrodes often used for a root pass and not intermittent welds?
ER 6010 provides better penetration
breathing in excessive argon can cause?
Suffocation
a weld on the arrow side of the reference line is to be welded on what side
the arrow side
The HAZ is the ?
Heat Affected Zone
Quenching a weld is not common practice in the industry due to making the weld ?
Brittle
what type of rod is a ER 1718 Rod?
is a low-hydrogen rod
what type of electrode is used in GTAW?
Non consumable
A flag on reference line represents what ?
Field weld
What are the three stages of visual inspection?
This must be done before, during, and after welding to ensure a quality product.
when welding with low travel speed what characteristics will this cause on the bead?
Convex weld
Name three causes for overlap?
welding to cold, improper technique, and focusing on one joint member too much.
what is kerf?
the width of a cut
weld size is noted the what of the welding symbols
left side
What is a tensile strength test?
This test is performed by pulling a welded sample until it breaks to measure the weld's tensile strength.
worm tracking is a type of porosity found only on ?
FCAW
while welding with the electrodes pointing away from where you are going to weld this is called?
What is "bird-nesting"?
A situation in which the electrode wire fuses to the contact tip in MIG welding. when wire feeder gets jammed up
A groove weld symbol with a "G" above the weld symbol and on the reference line indicates that the weld should be finished by?
grinding
What is a fillet weld gauge?
this a type of gauge to accurately measure both the leg length and throat thickness of a fillet weld.