Molds & Tooling
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Uneven Photoelastic Stress of PC Products
Problem Phenomenon
The stress distribution of PC products under polarized light is uneven.
Cause Analysis
The residual stress distribution is uneven due to uneven mold filling flow and cooling.
Solution
Optimize the gate and cooling design; increase the mold temperature; anneal to homogenize the stress.
Key Takeaway
PC photoelastic stress is an important tool for quality inspection.
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