Study PropertyManager

The Study PropertyManager creates a new Plastics study.

To open the Study PropertyManager:

  • Click New Study (Plastics CommandManager).
Use the Study PropertyManager to:
  • Assign a name for the study.
  • Select the injection process type (single polymer material versus multimaterial process).
  • Select the analysis procedure (solid or shell mesh).

Name

Enter a name for the new study, or leave the default study name.

Injection Process

Select one option:
Single Material Only a single polymer material is considered in the injection process. Single Material is supported by the shell mesh procedure.
Co-injection
Two different polymer materials are injected at the same location. Common reasons for using co-injection are:
  • To use a cheaper fill material for the hidden core of a product.
  • To combine properties of different polymers, such as color, feel, or mechanical properties.
Co-injection is supported by the solid mesh procedure only.
Bi-injection

Two different polymer materials are injected (possibly simultaneously) at different locations, with each injection process being independently controlled. The materials meet, and form a weld line within the cavity.

Bi-injection is supported by the solid mesh procedure only.
Aqua-injection Water is injected into the melted polymer stream to create a hollow part. Aqua-injection is supported by the solid mesh procedure only.
Gas-assisted

A bubble of gas, typically nitrogen, is injected into the melt stream to create a hollow core in the molded part.

Gas-assisted injection is supported by the solid mesh procedure only.

Analysis Procedure

Solid Requires a solid mesh for the domain selections. The solid mesh procedure supports all injection processes and domains of all types (cavity, cooling channel, runner body, mold insert, part insert, and mold body). The solid mesh procedure is generally the most accurate, provided that the mesh resolution is adequate across the cavity.
The prosessing time to accurately model solid parts can be high.
Shell Requires a shell mesh for the cavity domain. The shell mesh procedure can only support a single domain of the Cavity type. Use a shell mesh for thin-walled parts. Part thickness can vary slightly, but a shell mesh cannot accurately model grid-like or strip-like configurations.

The modeling assumptions (Poiseuille flow for runners and Hele-Shaw flow for cavities) account for possible differences in results between shell and solid mesh procedures.
Use sketches to model runners when you assign a shell mesh to a cavity.
You can create one Plastics study per configuration.