Molding Process
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PETG product high notch sensitivity
Problem Phenomenon
The product easily breaks at notches, and the notched impact strength is low.
Cause Analysis
PETG has the mechanical characteristic of notch sensitivity, and sharp corners and edges produce stress concentration.
Solution
Design the product to avoid sharp corners and edges; use larger fillet transitions; appropriately increase wall thickness.
Key Takeaway
PETG notch-sensitive design requires sufficient safety margin.
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