Review the Cause of Warpage

In this task, you use deflection results to determine what the cause of the warpage is. The warpage analysis was run four times with different shrinkage variants as inputs, to determine the cause of warpage. These variants include:

• Differential cooling

• Differential shrinkage

• Orientation effects

• Corner effects

The warpage analysis outputs deflection plots for all effects, and the four variants. These plots allow you to compare the variants to each other and the all effects to determine the cause of warpage.

1. Click twice (slowly) Results Windows Split.

2. The first click activates the tool and the second click splits the display in four equally sized windows.

   

3. Click Results, Locking, Lock All Views.

   When you rotate, pan and zoom, all four windows move at the same time.

   

4. Display the variant deflection results. Start in the upper left window and go clockwise plotting:

   • Deflection, differential cooling:Deflection

   • Deflection, differential shrinkage:Deflection

   • Deflection, orientation effects:Deflection

   • Deflection, corner effect:Deflection

5. Compare the maximum deflection for each variant in the buttons area. The variant with the highest deflection is closest to the all effects and is therefore the primary cause of warpage. In this case, it is differential cooling.

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