Air vents allow air to escape from a cavity as the melted polymer fills
the
mold.
Without enabling
Venting Analysis,
the software assumes that the displaced air has the means to vent (mold is adequately
vented). With
Venting Analysis enabled, you can
predict the effect of the displaced air on the plastic filling. You use the
Air Vents boundary condition to specify venting
locations.
By adding air vents in critical locations of a cavity, you can
avoid potential defects of plastics parts because of the diesel effect.
To open the Air Vents PropertyManager:
- In the PlasticsManager, right-click , and click Air Vents
.
Specify Locations
 |
Points
|
Selects points (vertices or sketch points) of a
model that correspond to air vents. Selected points appear in
blue in the graphics area.
|
To run Venting Analysis after setting
the vent locations, in the Fill Settings
PropertyManager, select Venting Analysis.
After running the analysis, you can view the results in the Flow Results PropertyManager, under Venting Pressure.