This topic specifies the results generated for a Fill analysis on a thermoplastic material.
View a summary of the Fill analysis result.
An air trap occurs where the melt traps and compresses a bubble of air or gas between two or more converging flow fronts, or between the flow front and the cavity wall. Typically, the result is a small hole or a blemish on the surface of the part. In extreme cases, the compression increases the temperature to a level that causes the plastic to degrade or burn.
The Average temperature result shows the average bulk temperature through the thickness of the part at the end of fill.
The Confidence of fill result displays the probability of plastic filling a region within the cavity under conventional injection molding conditions.
The Fill time result shows the position of the flow front at regular intervals as the cavity fills.
The Frozen layer fraction at end of fill result represents the thickness fraction of the frozen layer at the end of filling.
The Grow from result, which is produced by a Fill analysis, shows the areas that are filled from each gate in multi-gated parts so that you can determine whether the flow within the part is balanced.
The Orientation at skin result provides a good indication of how molecules will be oriented on the outside of the part, showing the average principal alignment direction for the whole local area at the end of filling.
The Injection pressure result, which is produced by a Fill analysis, shows the maximum injection pressure value obtained before the velocity/pressure switch-over occurs during the filling phase.
The Pressure drop result uses a range of colors to indicate the region of highest pressure drop through to the region of lowest pressure drop. This result indicates how much pressure is necessary to fill the different areas of the part.
The Quality prediction result is used to estimate the quality of the mechanical properties and appearance of the part. This result is derived from the pressure, temperature, and other results.
The Temperature at flow front result, which is produced by a Fill analysis, shows the temperature of the polymer when the flow front reaches a specified point in the center of the plastic cross-section.
The Time to reach ejection temperature result shows the amount of time required to reach the ejection temperature, which is measured from the start of fill.
The Unfilled cavity result, which is produced by a Fill analysis using a 3D analysis technology, shows areas in a model where the part has not filled.
The Weld lines result displays the angle of convergence as two flow fronts meet. The presence of weld lines may indicate a structural weakness and/or a surface blemish.