Molding Process
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PETG product high notch sensitivity
Fenómeno del problema
The product easily breaks at notches, and the notched impact strength is low.
Análisis de la causa
PETG has the mechanical characteristic of notch sensitivity, and sharp corners and edges produce stress concentration.
Solución
Design the product to avoid sharp corners and edges; use larger fillet transitions; appropriately increase wall thickness.
Conclusión clave
PETG notch-sensitive design requires sufficient safety margin.
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