New Thermoplastics Bi-injection Molding process

It is now possible to analyze the Thermoplastics Bi-injection Molding process, which involves injection of two different materials into a mold cavity, through separate injection locations. The separate injection locations are controlled independently by two different injection units.

The process is similar to Co-injection Molding, but instead of Material A and Material B being injected sequentially through a single injection location, the two materials are controlled separately through two separate injection locations, each of which can feed one or more gates into the mold cavity. The two materials can be injected simultaneously, or the injection of Material B can be delayed until a specific time after the injection start of Material A.

The Thermoplastics Bi-injection Molding process is available only for Midplane analysis technology and thermoplastics materials, with or without fiber fillers. To set up a Thermoplastics Bi-injection Molding analysis, follow these steps:
  1. Import or create and mesh a Midplane model of your part.
  2. Select the Thermoplastics Bi-injection Molding process.
  3. Select an analysis sequence that includes Fill or Fill+Pack.
  4. Select two thermoplastics materials, Material A and Material B.
  5. Ensure that two injection locations are set on the model.
  6. Assign which injection location is associated with Material A and which is associated with Material B.
  7. Specify the process settings for the first and second injection units to control Material A and Material B, respectively.
Thermoplastics Bi-injection Molding analysis results are produced at the completion of a Fill or Fill+Pack analysis. In addition to the standard Flow results, which apply to the whole cavity or to the first injection (Material A), the following new results specific to the bi-injection process are produced and available for display by default: