Question

Identify the correct type of defect for casting shown below: 

• A. Cold shut
• B. Cold shots
• C. Hot tearing
• D. Shrinkage cavity

Hint:

To avoid hot tearing, use proper gating and riser designs, and control the cooling rate of the casting to minimize uneven contraction.

Answer 1

The Correct Option is C

Hot tearing occurs when the casting material contracts unevenly during solidification, causing cracks to form. It is typically seen in large castings or those with complex shapes, where the material has difficulty shrinking evenly.