Lack of Fusion Lack of Penetration Lap Joint
Level Wound
Linear Discontinuity
Linear Indication
Local Preheating
Longitudinal Crack
A nonstandard term for incomplete fusion
A nonstandard term for incomplete joint penetration.
A joint between two overlapping members in parallel planes.
Spooled or coiled filler metal that has been wound in distinct layers such that adjacent turns touch.
A discontinuity with a length that is substantially greater than its width.
A test result in which a discontinuity in the material being tested is displayed as a linear or aligned array.
A specific portion of a structure.
A crack with its major axis orientation approximately parallel to the weld axis.
ABCD - EFGH - IJ - KLMN - O
P
Q - R
S
T
U - V
W - X
Y - Z