Show Analysis Results

Analyze the results to minimize defects and prevent problems.

Results must be available in the Run History before viewing.

  1. On the ribbon, click the Molding tab.
  2. On the Analysis icon, click Show Analysis Results.
  3. In the Analysis Explorer, select a Run, Stage, and Result Type.
  4. Optional: Enable the various Show options to determine what is visible for the analysis.
  5. Optional: Enable the various Callouts options to show analysis results at a point of interest on your model. The callout values apply to the currently selected run.
  6. Optional: Select the icon under Options to view the results as vectors and change the size of the vectors.
    Note:
    • Not all result types can be presented as vectors.
    • You can also activate and deactivate the vector visualization from the menu under the Show heading.
  7. Optional: Select the icon under Options to show tensor plots at a selected node on the part.
    Note:
    • This option is available only when the molding part uses fibrous material.
    • This option appears under Filling and Packing stages only.
  8. Optional: Select the icon to show plots of results data from the run's .csv file.
  9. Optional: Click under Info to view displacement results from a selected point of reference. Click on the model to define the point of origin, then define the X and Y directions.
    Note: This option is available in the Warpage stage only.
  10. Optional: Use the Uniform Compensation Percentage field to quickly visualize how isotropically enlarging the mold will affect the finished part.
    Note: This option is available in the Compensated Displacement result only.
  11. Analyze the run.
    Tip: To see what areas on your model are under the greatest stress, select and drag the results slider. To restore the result slider's default values, click .


Result Types

Results are available for cycling, filling, packing, cooling, and warpage analysis stages.

Cycling Results

Option Description
Temperature View how the temperature changes during the cycling process. It will take more time for the part to reach demolding temperature with each cycle until the mold reaches working temperature.
Density View how solidification time changes between cycles. The part will take more time to solidify during each cycle until the mold reaches working temperature.
Mold Temperature See temperature changes in the mold during the cycling process. The mold will absorb more heat with each cycle until it reaches working temperature.

Filling Results

Option Description
Temperature
  • Review the temperature evolution of the fluid entering the mold cavity.
  • Check regions for excessive heating or cooling.
  • Determine the appropriate fill speed for uniform temperature distribution.
Flow Front Temperature Review the temperature at the time of filling.
Temperature (Core) Review the temperature in the central region of the part during filling.
Average Temperature Review the average temperature across the thickness of the part during filling.
Average Bulk Temperature Shows on the surface the velocity-averaged temperature across the thickness. Higher velocity regions have a larger contribution.

Pressure Review pressures inside the mold cavity produced during the filling stage.
Filling Time Review the time it takes the material to reach different areas within the part. The filling results can help you determine the best way to fill the part and detect patterns that indicate the potential for incomplete filling, unbalanced flow, weld lines and air pockets.
Tracer ID Review the amount of polymer entering the mold from each gate.
Velocity
  • Examine the velocity vectors evolution during the filling of the mold.
  • Click the Show and Options buttons to change to velocity contour fill animation.
Velocity Average View the average velocity of the material through the part during filling.

Density Review the polymer's density over time. Uniform density is ideal for high quality results.
Frozen Layer (%) View the solidified and non-solidified regions of the part during filling.
Air Traps
  • Locate air trapped in the mold during filling due to different flow patterns.
  • Consider adjusting the venting in the simulation.
Weld Surface Angle A weld surface is generated when two polymer flow fronts meet. This can have an impact on both the appearance and strength of the part. The weld surface angle is the angle at which the two fronts meet, defined as 0º for a weld in which the fronts meet from exactly opposite directions, and increasing as the encounter is less direct. Weld surfaces above 135º (less than 45º from parallel) are not shown.
Thickness Review the thickness of different areas of the part. Local part thickness affects local strain rates and heat flow. Abrupt changes in thickness cause uneven cooling, which can lead to part shrinkage and defects such as sink marks in the final part. This result can give insight into the entire process.
Shear Rate Review the maximum shear rate across the thickness of the part.
Shear Stress Review the maximum shear stress across the thickness of the part.
Main Fiber Orientation

This is the main fiber orientation component Displays the orientation and modulus of the first principal component of the fiber orientation tensor.

A value close to 1 implies that most of the fibers are oriented in this direction. A value close to 1/3 implies no dominant orientation (random).
Full Fiber Orientation This result shows all the components of the Fiber Orientation Tensor.
Mold Temperature Review temperature variances in the mold.

Packing Results

Option Description
Temperature Review temperatures during the packing phase. The temperature will decrease due to the temperature loss across the mold walls.
Temperature (Core) Review the temperature in the central region of the part during packing.
Average Temperature Review the average temperature across the thickness of the part during packing.
Average Bulk Temperature Shows on the surface the velocity-averaged temperature across the thickness. Higher velocity regions have a larger contribution.
Pressure Consider pressures during the packing phase. These results are useful to know points where the pressure is less than 0 to detect areas prone to suffer a sink mark defect.
Velocity Examine velocity during the packing phase. Velocities will decrease until the fluid stops flowing.
Velocity Average View the average velocity of the material through the part during packing.
Density Review changes in the polymer's density over time. Uniform density is ideal for high quality results. This result can help pinpoint the causes of such defects as sink marks and shrinkage.
Frozen Layer (%) View the solidified and non-solidified regions of the part during packing.
Thickness Review the thickness of different areas of the part. Local part thickness affects local strain rates and heat flow. Abrupt changes in thickness cause uneven cooling, which can lead to part shrinkage and defects such as sink marks in the final part. This result can give insight into the entire process.
Shear Rate Review the maximum shear rate across the thickness of the part.
Shear Stress Review the maximum shear stress across the thickness of the part.
Volumetric Shrinkage This result shows the local shrinkage (you can see the differences across the thickness) in the finished part.
Average Volumetric Shrinkage This result shows the average shrinkage across thickness in the finished part.
Sink Marks Detect surface depressions, usually in the thicker sections of the model, caused by shrinkage during the packing stage.
Main Fiber Orientation

This is the main fiber orientation component Displays the orientation and modulus of the first principal component of the fiber orientation tensor.

A value close to 1 implies that most of the fibers are oriented in this direction. A value close to 1/3 implies no dominant orientation (random).
Full Fiber Orientation This result shows all the components of the Fiber Orientation Tensor.
Mold Temperature Review temperature variances in the mold.

Cooling Results

Option Description
Temperature Examine the temperature evolution once the mold is totally filled. You can determine the final temperature at which to stop the cooling phase.
Temperature (Core) Review the temperature in the central region of the part during cooling.
Average Temperature Review the average temperature across the thickness of the part during cooling.
Density Review changes in the polymer's density over time. Uniform density is ideal for high quality results. This result can help pinpoint the causes of such defects as sink marks and shrinkage.

Frozen Layer (%) View the solidified and non-solidified regions of the part during cooling.
Thickness Review the thickness of different areas of the part. Local part thickness affects local strain rates and heat flow. Abrupt changes in thickness cause uneven cooling, which can lead to part shrinkage and defects such as sink marks in the final part. This result can give insight into the entire process.
Mold Temperature Review temperature variances in the mold.

Warpage Results

Option Description
Displacement Detect folding, bending, twisting or bowing in the molded part, which is usually due to non-uniform cooling. The displacement contour displays how the part is warping so that you can make the appropriate corrective measures to the cooling rate, cooling channel design, or process data.
Compensated Displacement

Use the Uniform Compensation field to quickly visualize how isotropically enlarging the mold cavity will affect the finished part. If large warpage displacements beyond the compensated contraction appear, either process parameter changes or more complex mold cavity modifications--or possibly both--are needed.



View Molding Defects

Fix issues with air traps, weld surfaces, and sink marks.

  1. When the run is complete, click the Show Analysis Results icon or double-click the run the in Run Status window to view the results.
  2. In the Analysis Explorer select the Filling stage, then view the results for Air Traps. This defect occurs when there is not enough venting, and air gets trapped in the mold.
    Note: To fix issues with air traps:
    • Optimize your design to create appropriate gating.
    • Select low viscous materials, which will allow more air to be released.
    • Add proper ventilation.
    • Align your mold properly to help provide ventilation for trapped air.
  3. Next, view Weld Surfaces for the Filling stage. This simulation shows the regions where two flow fronts meet. This defect can occur in parts with a core or insert. If the two fronts that meet have different temperatures, they may not meld completely in the mold because of a temperature gradient.

    Note: To fix issues with weld surfaces:
    • Select a material with a low melting temperature.
    • Increase the injection temperature and speed.
    • Modify the design to obtain a single flow.
    • Increase the melting temperature of the material.

  4. View Sink Mark results for the Packing stage. These defects occur in the thicker sections of the model when the cooling rate and compensation are not sufficient. Rib sections and internal fillets are the most common areas to be affected.
    Note: To fix issues with sink marks:
    • Redesign the thickest section where sink mark is occurring and try to reduce the thickness.
    • During Packing, lower the mold temperature using the Cooling System.
    • Increase the gate size to allow enough material to fill and pack the mold.
    • Increase the holding temperature during the Packing cycle.

Callouts

Create, show, hide, and list callouts for selected result types at points of interest on your model.

After running an analysis, click the Show Analysis Results on the Analyze icon. Options for callouts appear in the Callouts section of the Analysis Explorer.

Callout Icon Description Note
Create, Show, and Hide Callouts

 Click the icon, then click a point on the model to create a callout. After creating callouts, click the icon to show/hide the callouts in the modeling window.
List Callouts

 Display a list of all callouts in a table. Each callout is specific to the selected run. Click the icons in the table to show/hide individual callouts.
Min/Max Callouts

 Create a callout showing where the minimum/maximum value occurs for the selected result type. Click the min/max callout in the modeling window to create a regular callout at the same location.
Options

 Dynamic Callouts: Make callouts dynamic, so they display the value of the currently selected result type. If you enable the Compare Results feature in a callout, the callout becomes static.