Pressure drop exceeded maximum injection pressure limit

About this result

The Quality Prediction result indicates this area of the part may have poor quality. This is because the pressure drop at the point you selected is too high compared to the maximum injection pressure.

The pressure drop is the drop in pressure from the initial injection pressure to the pressure recorded at the moment the part was filled, for the entire model. The lower the pressure drop values, the more chance you have of the part filling completely.

If a part has a yellow or red Quality Prediction result, find out why. If it is due to high pressure drop, try making some of the changes recommended below.

If the part is mostly green with some small yellow areas, it may be acceptable, but you should look carefully at the other result displays to see exactly where and why the results are wrong.

Problems caused by high pressure drop

If the pressure drop is greater than 80 percent of the injection pressure, there may be filling problems. In particularly short shot.

What to do

The following options are available to improve the result:

• Increase the maximum injection pressure to improve the Confidence of fill.
• Move the injection location closer to the problem area. This may have an impact on other areas of the part.
• Add additional injection locations. This might cause the formation weld lines in unacceptable locations.
• Change part geometry. If the part consists of a complex and thin geometry, this may be the cause of the short shot. You may need to thicken thin sections, or reduce the complexity of a flow path.
• Select a different material with a higher melt flow rate so that less injection pressure will be required to fill the part.