Temperature, part (bottom) result

The Temperature, part (bottom) result shows the average temperature of the part side of the part/mold interface, on the side of the part element that is designated as bottom.

This temperature is determined by the Mold-melt Heat Transfer Coefficients (HTC) values.

Tip: This is set in the advanced options of the Process Settings.

A lower HTC value represents a greater resistance to heat transfer between the polymer and the mold.

Using this result

Use this result to find localized hot or cold spots, and determine whether they will affect cycle time and part warpage. If there are hot or cold spots, you may need to adjust the cooling channels, or coolant temperature.

The difference between the temperature across the top or bottom face of the part, and the target mold temperature, should not be greater than ±10°C.

The temperature variation over each mold face should be within 10°C. The Temperature, part (bottom) result should not be more than 5°C above the coolant inlet temperature.

Note: If you use a cooling interface file for a Fill+Pack analysis, the mold temperature is defined as follows:

• For a Dual Domain model, the average of the top and bottom temperature is used as the mold temperature.
• For a Midplane model, the top temperature is used as the mold temperature.

The temperature of the mold should be as close as possible to the analysis target temperature.

Things to look for

Use the following results to check for localized hot spots:

• Temperature, part (top)
• Temperature, part
• Temperature difference, part