Extrusion & Post
3 Aufrufe
Product dimensions out of tolerance
Problembeschreibung
Key product dimensions exceed drawing tolerance requirements and cannot be assembled
Ursachenanalyse
The predicted shrinkage rate value is inaccurate; mold temperature fluctuation causes shrinkage rate changes (each °C of mold temperature can affect shrinkage rate by 0.02-0.05%); holding pressure parameters are unstable
Lösung
Correct mold cavity dimensions based on the actual shrinkage rate; stabilize mold temperature fluctuation within ±2°C; fix the holding pressure curve and cooling time
Wichtigste Erkenntnis
Dimensional accuracy depends entirely on the stability and predictability of shrinkage behavior
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