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← ScienceWhich risk increases when injection molding cycle time decreases?
A)Increased material crystallinity develops
B)Residual stress within the part grows✓
C)Polymer chain alignment improves
D)Surface finish distinctness increases
💡 Explanation
Decreased cycle time allows less relaxation because there's insufficient duration for stress reduction through viscous flow, therefore part warpage risks grow rather than the material properly crystalizing or achieving optimal orientation under these conditions.
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