Compare the deflected shape to the designed part shape

If you wish to evaluate the final part shape after shrinkage and warpage relative to the designed part dimensions, you can also turn on Cavity dimensions include mold shrinkage allowance. Adjust constraint positions automatically. This will enable the computation of the deviation of the final deflected shape of a scaled-up model, which already accounts for mold shrinkage allowance, from the original part design.

Prerequisites

Before proceeding with this task, it is assumed that you have:

• Imported a model whose dimensions have been expanded to account for mold shrinkage allowance;
• Created a mesh for the model and verified it for errors;
• Designated the injection locations;
• Included warp as part of the analysis sequence.

Steps

1. Define warp nodal constraints if the part is going to be mounted into assembly or fixing points after molding.
   1. Click (Boundary Conditions tab > Constraints and Loads panel > Constraints > Fixed Constraint).
   2. Use the cross-hairs to select the mounting node(s) for which you want to set the constraint.
   3. Select Warp Analysis or Stress and Warp Analysis from the Use constraint in drop-down menu.
   4. Click Apply. An appropriate constraint symbol will be displayed at each location you have constrained.
   5. Click Close to close the dialog.
2. Click (Home tab > Molding Process Setup panel > Process Settings) then click Next until the Warp Settings page.
3. Select the Cavity dimensions include mold shrinkage allowance. Adjust constraint positions automatically in the dialog.
4. Specify the Mold shrinkage allowance following Cavity dimensions include mold shrinkage allowance. Adjust constraint positions automatically using the factor you used to scale up the designed dimensions.
5. Click Finish to close the Process Settings Wizard.
6. Run the warp analysis.
7. Once warp analysis completes, you can view the Deflection, Deviation from part design result to check the geometric deviation of the final part shape from its original part design shape.