Processing Machinery
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LCP Product Warpage Prediction
Problem Phenomenon
Warpage is difficult to predict.
Cause Analysis
LCP warpage is driven by anisotropic shrinkage; empirical prediction is unreliable.; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based solely on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solution
①Mold flow analysis to predict orientation and warpage; ②first article verification to correct the model; ③establish a database; ④intervene at the design stage.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
LCP warpage must be predicted by mold flow analysis; rules of thumb fail.; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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