Molds & Tooling
3 Aufrufe
Product severe warpage deformation
Problembeschreibung
The product bends, twists or dishes, and cannot be solved after multiple process adjustments
Ursachenanalyse
Fiber orientation causes anisotropic shrinkage (small longitudinally, large transversely); uneven mold cooling causes temperature gradient stress; asymmetric geometric structure constraints of the product
Lösung
Use mold temperature control to achieve uniform cooling; reduce injection and holding pressure to reduce orientation; anneal the product after demolding to release internal stress
Wichtigste Erkenntnis
LGFPP warpage is mainly caused by anisotropic shrinkage due to fiber orientation
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