Molds & Tooling
2 views
EAA product twisting deformation
Problem Phenomenon
EAA products twisted 2-3°/100mm along the axis
Cause Analysis
Asymmetric cooling causing shrinkage difference on each face, producing twisting moment; gate position producing asymmetric flow orientation
Solution
1) Symmetric cooling design to ensure uniformity on each face; 2) Symmetric gate arrangement; 3) Anneal to release twisting stress
Key Takeaway
Twisting deformation is caused by asymmetric cooling; symmetric cooling is key
Was this helpful?
0 people found this helpful
Thank you for your feedback!