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Warpage Analysis
Mold flow Shrinkage & Warpage Analysis
Warpage occurs when there are variations of internal stresses in the material caused by a variation in shrinkage. Warped parts may not be functional or visually acceptable.
1, Non-uniform cooling.Temperature differences from one side of the mold to the other can lead to layers freezing and shrinking at different times and generating internal stresses.
2, Inconsistent shrinkage.Resulting from:
A, Material variations such as property variations, Fillers, varying moisture content, inconsistent melt and pigmentation;
B, Process conditions variations such as inconsistent packing and varying mold and melt temperatures;
C, Machine variations such as a damaged check ring and unstable controller.
1, Non-uniform cooling.Temperature differences from one side of the mold to the other can lead to layers freezing and shrinking at different times and generating internal stresses.
2, Inconsistent shrinkage.Resulting from:
A, Material variations such as property variations, Fillers, varying moisture content, inconsistent melt and pigmentation;
B, Process conditions variations such as inconsistent packing and varying mold and melt temperatures;
C, Machine variations such as a damaged check ring and unstable controller.
Part Shrinkage
![](images/bianxing1.jpg)
Results allow MPA to optimize design, material, and processing parameters to control part warpage before the mold is built.
Deflection Results
![](images/bianxing2.jpg)
In mold compensation is also possible. By exporting a inverse model from Mold flow toolmakers are able to compensate for unavoidable distortion in the mold.
Shrinkage & Warpage Analysis Capability:
Evaluate final part shape before machining the mold
Evaluate both single cavity and multi-cavity molds
Scale shrinkage and warpage results for better visualization of deformation
Query any two points to determine any dimensional change between the two
Constrain the part on a plane for better measurement of deflection
Separate total displacement into X-, Y-, and Z-axis displacements to show only the deflection in each direction
Show shrinkage and warpage as a visible displacement plot or as a color contour or shaded plot
Export warp geometry in the STL format to use as a reference when sizing the mold
Export warp mesh model for an iterative warpage analysis
Evaluate both single cavity and multi-cavity molds
Scale shrinkage and warpage results for better visualization of deformation
Query any two points to determine any dimensional change between the two
Constrain the part on a plane for better measurement of deflection
Separate total displacement into X-, Y-, and Z-axis displacements to show only the deflection in each direction
Show shrinkage and warpage as a visible displacement plot or as a color contour or shaded plot
Export warp geometry in the STL format to use as a reference when sizing the mold
Export warp mesh model for an iterative warpage analysis
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