Fill Rate Profiles
The fill rate profile specifies the rate at which plastic is injected into the part cavity. By default, the plastic material fills the part cavity at a constant rate. You can change this default. Show a picture here and link over to Process Settings.
Alternatively, you can define your own fill rate profile. There are two methods of specifying it:
- Time control
- Time control specifies the fill rate as a function of injection time. The time value entered in the last row in your table specifies the total fill time. The flow rate percentage values entered in the table are interpreted relative to each other. For example, if two times are defined with flow rate values of 10% and 30%, the flow rate at the second time will be three times as high as at the first time. The actual volumetric flow rates at each time are calculated to satisfy the relative profile and to fill the cavity in the total filling time.
- Volume control
- Volume control offers two methods to specify how the cavity fills. To emulate the fundamental inputs to an injection molding machine, you can define screw position vs. screw speed. Using the Screw Diameter and Part Volume information, the equivalent percentage of filled cavity volume and volumetric flow rate data are computed automatically. Alternatively, you can enter the filled cavity volume and volumetric flow rate data directly. The tabular display of the profile includes all four of these columns, and it updates automatically each time you modify an entry.