To successfully translate an IGES model into an Autodesk model suitable for analysis, the model must have been correctly prepared in the CAD system.
- The entire model must be described by IGES surfaces, not just lines and curves.
- Lines and curves can be used to import the cooling channels of a mold, and can be used as the basis for cooling channels construction. You may be able to export the center line geometry of the cooling lines from the CAD package.
- If possible, simplify the model to remove unnecessary detail, such as reference planes and very small features that have no effect on a Fill+Pack or a Stress analysis.
- Before exporting a model to be used by Dual Domain analysis technology, check in the CAD system that the part is fully closed, i.e. no gaps between surfaces.
- Export as surfaces, not shells.
Flow leader and deflector surfaces
Flow balance, where the extremities of the product fill at the same time, is achieved by changing the thickness of flow leader or deflector surfaces. The location and shape of such surfaces can be estimated and introduced before running a Fill+Pack analysis.