About this result
The Confidence of Fill result indicates this area of the part will be difficult to fill with plastic. This is due to the pressure drop at the selected point exceeding 100% of the maximum injection pressure.
What problems can high pressure drop cause?
If the pressure drop is greater than the injection pressure, there may be filling problems. In particular, the part may short shot.
What to do next
When the pressure drop exceeds the maximum injection pressure set, there are a number of alternatives available to improve the moldability of a part.
- Increase the maximum injection pressure for this part
- In this case, the pressure drop equals the set maximum injection pressure. To improve the confidence of this part filling, the injection pressure can be increased to compensate for the high pressure drop through the cavity.
- Alter part geometry
- If the part consists of a complex and thin geometry, this can cause filling difficulties which require high injection pressure to complete the filling. If altering injection pressure is not possible, the part geometry may need to be altered.
- Select a different material
- By choosing a material with a higher melt flow rate, less injection pressure will be required to fill the part.
- Alter the polymer injection location
- Moving the polymer injection locations closer to the problem area, or adding additional injection points can improve the likelihood of all sections of a part filling.