Which one of the following defects is NOT associated with welding processes?
Show Hint
- Angular distortion
- Hot tear
- Hydrogen embrittlement
- Earring
The Correct Option is D
Solution and Explanation
- Angular distortion: This occurs due to the uneven heating and cooling during the welding process, causing the workpiece to warp or change shape. It is a well-known welding defect.
- Hot tear: This is a defect that occurs when the metal solidifies and contracts during the cooling process. This is associated with welding, particularly when the metal is too thick or there is insufficient filler material.
- Hydrogen embrittlement: This is caused by the absorption of hydrogen during welding, which makes the metal brittle and susceptible to cracking. This is a common issue in welding, especially with certain materials.
- Earring: This defect is associated with the metal forming process (especially deep drawing), not welding. It occurs when the material in the drawing process deforms unevenly and forms a ring or earring shape.
Thus, Option (D) is correct because earring is not associated with welding processes. Final Answer: (D) Earring
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