Vidyalelo
Mechanical Engineering · Q64

Manufacturing And Production Technology

Engineering and GATE · Mechanical Engineering · question 64

Q64

What is the type of welding defect caused due to shrinkage during solidification and by weld stresses called?

A.
Incomplete fusion
B.
Lamellar tearing
Answer
C.
Mismatch
D.
Shrinkage void

Answer: Option B

Solution

Answer: Option B
Solution:
Lamellar tearing is a cracking phenomenon, which occurs beneath welds, and is principally found in rolled steel plate fabrications. The tearings always lies within the parent plate, often outside the transformed (visible) heat- affected zone (HAZ), and is generally parallel to the weld fusion boundary.