Hot tear refers to ________ .
casting defect
process of fabrication
process of heat treatment
weathering of non-ferrous materials
casting defect
Hot tear refers to casting defect.
Hot tear : Hot tear is a casting defect which is a crack that develops in a casting due to high residual stress.
Causes of hot tear are :
1. Cold dies and low metal temperature
2. Lack of venting and residual
stresses
Hence, the correct option is (A).
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