Molds & Tooling
6 مشاهدة
PETG product fatigue fracture
ظاهرة المشكلة
Fatigue cracks appear under repeated bending or vibration loads and propagate to fracture.
تحليل الأسباب
Stress concentration points initiate fatigue cracks, internal stress in the product accelerates fatigue, and the material fatigue strength is insufficient.
الحل
Improve the design to reduce stress concentration; increase mold temperature to reduce internal stress; toughening modification if necessary.
الخلاصة الأساسية
PETG fatigue performance is closely related to internal stress and design.
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