The Thickness fraction, polymer B result is generated from a Co-injection analysis, and shows the penetration and distribution of polymer B (core material) averaged through the thickness, as a fraction of total part thickness.
This fraction varies during the molding cycle and ranges from zero (pure Material A) to one (pure Material B).
Using this result
- Penetration goal 1
- To use the specified amount of core material, for example, to produce a part consisting of 30% core material.
- Penetration goal 2
- To enable core material to reach almost to the ends of the part, farthest from the gate(s), but not all the way. Reaching almost to the ends ensures uniform distribution, but reaching all the way indicates the core material is breaking through the surface.
- Distribution goal
- To use the core material equally throughout the part, so as not to introduce structural or warpage problems.
Note: Select 
and click on the model. The value displayed is the polymer B thickness, as a % of total thickness, found at the queried location. For example, .32 indicates the material at the queried location, through the thickness, consists of 32% polymer B (core material) and 68% polymer A (skin material).
and click on the model. The value displayed is the polymer B thickness, as a % of total thickness, found at the queried location. For example, .32 indicates the material at the queried location, through the thickness, consists of 32% polymer B (core material) and 68% polymer A (skin material). Things to look for
- Animate the plot to show if and where geometry affects penetration and distribution. For some geometries, certain areas fill early with skin material, leaving no space for core material. To correct such problems, you may need to change the gate location and/or thickness.
Note: Changes such as those above, can only be made using a licensed Autodesk Simulation Moldflow Adviser or Autodesk Simulation Moldflow Insight product.